Document 0JRDm3xVj9rL5EGxaLVoKONdn

) Ynnn, n. t. soon Gentlemen: fV) On October 12, 1967, yon vere requested to submit any comments v you miglit hove in. connection vith the preparation of those revised para graphs on which the prep manufacturers were asked to submit proposals at the June meeting in Washington. A number of comments vere received. These vere considered by a Special Sub-Committee meeting in New York on October 31* The results of that meeting are enclosed, hereto. ) <s t < t When you read this material you may note that there are com ments on other than those specified in the report of the June meeting. Such comments came about through the fact that the Navy had issued re visions to those editions which vere considered at the June meeting in Li Washington, and the Sub-Committee felt that some of this material was not satisfactory as published. A meeting has been arranged, as you know, vith NAVSEC in Washington on November Ik. The enclosed material will be submitted for discussion at that time. Please review the material carefully so that a productive discussion can be held on November 14. ) Very truly yours, /. LA A I FPA:eu Enclosure Frank P. Anderson Secretary J A ''/7 / j / >'\ SLM00111 HYDRAUUC mmum 122 Bast ^2nd Street Rev York, Jfcv York 10017 iettcs: social stm-coiMmss; Q BEV1EF MIT-BASY SnRCJFlC^TIO'^ H*CH OF JFOTkF: jriKlAl&IC IIXtfHlE, IO YOVTA, MW YORK EATS /5KB T5i3: T1L3PAY, CCTOriR 31, 3-9&T - - 9:30 A. 15, ?-s?Krrrs hifsfht: I. A. Jelly C. G. McGinnis R. P. Fhashaus J. J. Faugh Aurora Ranp Division Ingercoll-Rand Company Worthington Corporation Warren Pumps, Inc. MEMBERS ABSENT: B. W. Ellis Buffalo Pump Division OUHRS FRESETFT: M. F. Rogerstrom M. J. Real Frank P. Anderson Ingersoll-Rand Company Buffalo Pump Division Institute Staff IRESIBIMG OFFICER: I. A. Jelly, Chairman i. approval of previous Mnnnss; Since this was the first meeting of the Special Sub-Committee, there vere no previous minutes to consider, and it was not felt necessary to review the minutes of the parent Committee. II. PURPOSE OF MSSTBfG: This meeting was held for the purpose of reviewing and refining the suggested texts elicited by the letter of Octoher 12, 1967, to all memberc. For ease in presenting the suggestions relative to each of the four Specifications to he considered at this time, the suggested texts are shown on separate pages attached hereto c,s Exhibits A, B, C, and D, respectively. Mn-P-i8>i72 and KI.L-P-17881 had been reprinted rccentl?/, whereas the other two specifications vere still in draft form. For the foregoing reason, the Committee began, its analysis in connection with MIL-rrjV?2 and then proceeded to MIL-P-ITSSl before beginning work on the remaining two specifications. SPECIAL Slffi-COmiTPEB; COMMITTEE TO REVIEW f-iI?jITARY SPECil'iaVi'IORS OCTOBER 31, 1967 SLM00112 III. TIKE AND PEACE OF NEXT MSETIMr: Since tbits vas a Special Meeting at vhich the assigned function appeared to have been completed, no plana were made for a specific future irecting. The Chnirrrm, however, vas authorized to call such resting in the event that'need cliculd cries- IV. ADJnUV'm?!: Sere being no further business, the meeting adjourned. FPAreti AtmCHhiEOT: Exhibit A - KTL-P-1&72E Exhibit B - KIL-P-I788IC Exhibit C - MIL-P-.I7639B Exhibit D - MIL-P-I7672A Frank P. Anderson Secretary APPROVED BY COUNSEL: November 9? 1967 FAILED FROM HYDRAULIC INSTITUTE: November 9, 1967 SPECIAL SUB-COIMITTBE; COIWTTEE TO REVIEW MILITARY SF33CIFICATIONS -2- OCTOBER 31, 1967 SLM00113 MIL-P-l/$72R October 3967 (jnC . /'' r- -rent - j 20 Octob-r 1.967) i-HLITARY SPECIFICATION mSK}t CaiTEIFUGAL, CONDENSATE, FEED BOOSTER ADD DISTII&IKG H/uvT 3-1 - While the oarn^acturers had not been ached to develop a revision of this paragraph, it vac noted that the reprinted "E" Specification was exactly the seme as the previous MD" edition, and therefore, the following text was recommended as a substitute for the reprinted version: . "The pumps quoted to this specification shall be products made by manu facturers who have been qualified to a previous revision of this speci fication or who have chosen to qualify to this revision by providing' the tests and, reports required herein prior to quotation. Pumps provided on extract to this specification must be verified by the tests and reporta required heroin prior to delivery.11 3.2.1.2 - While the manufacturers had not been ashed to develop a revision of this paragraph, it vas noted that the re printed "E" Specification vas not entirely acceptable, and therefore, the following additional paragraph, which is underlined, was recommended: "Each pump shall be designed to have a satisfactory service life of 30 years of which I4O per cent shall be assumed to be actual operation. There shall be no limit on the number of starts during the life of the pump. It shall he assumed that during the life of the pump, parts subject to unavoidable wear and deterioration (with the exception of packing) will be replaced at intervals not shorter than three years. The parts subject to wear, deterioration, and normally requiring replacement at three year intervals during the service life of the pumps (with the exception of packing) shall be designed for a life of 3.0,000 actual operating hours pumping the fluid specified (see 6,3.) ana they shall be identified in appropriate drawings and manuals. The requirement set forth above shall not be construed or inter preted ns a warranty requirement nor otherwise affect the manu facturer* ' s vrxrranty.11 SPECIAL SUB-COMMITTEE; OrSKtTTEF: TO REVIEW MILITARY SPECIFICATIONS 1717101T A OCTOBER 31, 1967 KTL-P-1&72E .2 3,ii.2,5 - VMle the jrairofacturerG had not teen ached to develop a revision of this paragraph, it res noted that the reprjnted text of the "E" Specification was acceptable as follows: "Pump unit-3 shall not be damaged or caused to malfunction either by internally excited vibrations, or by the environmental vibrations specified in MIL-ST&-I67. Frequencies shall be as specified (see 6.l)," 3.5.1*3 - While the "3" Specification reprint contains a revision of this paragraph, the manufacturers felt that it vas not complete as given end therefore recommended that it be expanded to read as follows, with the revised portions underlined: "Axial hydraulic imbalance due to the use cf single inlet impellers shall not exceed 150 pounds unless fully .justified in the design evaluation report," 3-5.1*6 end 3-5.1,7 - These were paragraphs on which, the manufacturers had been asked to furnish data limiting K factors. Note was made of the fact that the "E" Specification reprint combined these two paragraphs but, in the process, had omitted the first sentence of 3-5.1.7/ and therefore, the following paragraph vas recommended in which the revised portions are underlined: "In sing3.e stage, vertical, flexible-coupled pumps, the rotor shall be supported by bearings external to the pump. Water lubricated bearings shall not be used in the pump. Pomp casing shall be double volute, diffuse!- or modified concentric design to minimise radial loading on the shaft: (a) Double volute casing. (b) Diffusers. (c) Concentric. (d) Modified Concentric." SPECIAL SUB-COM?.aTTEE; C'VMMrTTES TO REV3J2W MILITARY SPECIFICATIONS EXHIBIT A OCTOBER 31, IQ^T SLM00115 J.IEL-P-3%Yi] 3 3.5.6.6 - 1.3)1 lr; the ir^nia'actm'cd'o wore not asked to provide a revised Oiro.it of thin paragraph, nor vac there record that a change had "been requested, the Sub-Consaittee recorirrnded the following; with the revised portions underlined; "Fitted holts or heavy dowel pins shall be provided to insure maintenance of alignment of casing halves in reassembly. Tapered dowel pins shall be corrosion resistant material, shall have the large end threaded and provided with a nut, and shall be secured against coming adrift under shock loading 4.2 - While the manufacturers had not been asked to develop a revision of this paragraph, it had been previously discussed; and now it was noted that the "E" Specifi cation reprint was a revision of the original text. The revision which was acceptable when falcon in conjunction with revised paragraph 3*1/ mentioned above, is as follows; "Qualification Testsj^. - Tests shall be performed at a laboratory satisfac tory to KAVSEC. The several qualification tests on one pump design my be conducted concurrently if practicable. The tests shall fully establish that the product has the reliability and performance capability specified herein. (a) The performance evaluation tests specified in 4.4.2 through 4.4.2.3* (b) The tests specified in 4.4.3- 2/ Application for Qualification tests shall be made in accordance with "Provisions Governing Qualification SI)-6" (see 6.3 and 6.4)." 4.2.1 - While the manufacturers had not been asked to develop a revision of this paragraph, it ms noted that the original text had beeD revised in the "B" Specification reprint and amendment and is acceptable as follows: 1 "The qualification specified herein shall apply separately to one pump of each class. Separate qualification tests are required on vertical and horizontal unite of each class. Qualification will include all sizes for a specific class." ------------------- -- .....' SPECIAL Slffl-COMTTEE; COMMITTEE TO TlBYIEVJ KTLITABY SMjPT.CATIOSS EXHIBIT A OCTOBER 31, 1Q$7 SLM00116 HLL-F-18472E > 4- 4.2.2 - While the manufacturers had not been asked to develop a revision of this paragraph, it was noted that the original text had been revised in the "E" Specification reprint and ir, Acceptable as follows: "The potential supplier desiring qualification of a specific pump class rhn.ll submit design data and calculations, as specified in 3*1*1 through 3.'10.5# to lAvAIX for review end approval ar a prerequisite to the performance of the qualification tests specified herein. The design record, no specified in 3.11 through 3*11.2, shall be submitted upon completion of the qualification tests." 4.4.3 - hhile the manufacturers had not been asked to develop a revision of this paragraph, it was noted that the original text had been revised in the "E" Specification reprint and amendment and is acceptable as follows: "Design evaluation tests. - One pump of each class, design and size complete with the driver and all appurtenances and controls shall successfully undergo the design evaluation tests specified herein. Design changes which in the opinion of the procuring agency nay detrimentally affect the reliability of a previously tested and accepted pump design shall be cause to require new design evaluation tests in part or in full. It shall be at the discretion of the procuring agency to require new design evaluation tests when an accumulation of several design changes, each of Itself apparently not significant to pump reliability, collectively con sidered render suspect the validity of any one or all of the previously performed design evaluation tests. An endurance test need not be performed provided that the vendor can demonstrate to the satisfaction of the command or agency concerned that the pump to be offered has proved satis factory in previous Navy shipboard service under conditions equally as strenuous as those specified in the ordering data. The design evaluation tests shall consist of the following: (a) Endurance test (see 4.4.3.1). (b) .Shock test (see 4.4.3.2). (c) Inclined operation test (see 4.4,3.3). (&) Vibration test (if specified in 6,l) (see 4.4.3.4)." 4.4.3.1.1 " While the manufacturers had not been asked to develop a revision of thin paragraph, it wa3 noted that the original text had been revised in the "E" Specification reprint and amendment and is acceptable as follows: "Prior to commencement of the endurance test and immediately after completion of the 500 hour operating run, the pump Bhall be disassembled to the extent necessary and the critical dimensions and running clearance, or parts sub ject to wear, erosion and derangement, measured, calculated and recorded. All components such as pump impellers and casings subject to erosion, corrosion, cavitation, and wear, the effects of which are not subject to routine measurement shall he listed in the inspection record and after completion of the test the condition of each component shall be determined and recorded." SPECIAL SUB-COMMITTEE; COMMITTEE TO REVIEW MILITARY SPECIFICATIONS -4- EXHIBIT A OCTOBER 31, 1967 SLM00117 KCUF-18472S - 5- 1j,A.3.1.4 - While the manufacturers had not been asked to develop n revision of this paragraph, it was noted that the original text hod been revised in the "E" Specification reprint. This reprinted tori'. -on acecTyUihlc vith a revision indicated by under} lining c.a follows: "The pump _shal.l be monitored during the endurance test to accurately record ~tHe-conditions of operation, the capacity delivered, the total head developed, the speed at which operated and the general performance ob served. Data shall be collected and the pump inspected at twelve hour. intervals. For each periodic inspection, in addition to all Eoahurcd' data, the record shall indicate the following: (a) The punrp packing leakage rate. (b) The conditions of the bearings. (c) The airborne noise level {normal-abnormal). (d) The vibration level (normal-abnormal). (e) The smoothness of operation (normal-abnormal). (f) All other abnormal findings. (g) All adjustments made. (h) Changes made in the conditions or method of operation." 6.3 - While the manufacturers had not been asked to develop a revision of this paragraph, it was noted that the original text had been revised in the "E" Specification reprint and that the reprint ms now incompatible with 3-1, mentioned above. Accordingly, the following underlined revisions are recommended: "With respect to products requiring qualification, awards will be made only for products which are at the time set for opening of bids, qualified for inclusion in applicable Qualified Products List QPL 18472 whether or not ouch products have actually been so listed by that date. In this regard, bids from manufacturers who were listed on the applicable Qualified Products List to the previous issue of this specification will he acccptot-j-O provided that qualification for each class pump Is Per formed on the initial contract awarded to such manufacturer. The at tention of the suppliers is called to this requirement, and ms^ifacturero ere urged to arrange to have the products that they propose to offer to the Federal Government tested for qualification in order that they may be eligible to be awarded contracts or orders for the products covered by this specification. The activity responsible for the Qualified Products List is the Naval Ship Engineering Center, Department of the Kavy, Washington, D. C. 20360, and information pertaining to qualification of products may be obtained from that activity. Application for Qualifica tion tests shall be made in accordance with ''Provisions Governing Qualifica tion SD-6" (see 6.4)." SPECIAL SUB-COMMITTEE: COMCEMKS TO REVIEW MILITARY SPECIFICATIONS EXHIBIT A OCTOBiiR 31, 1967 SLM00118 aade by > this specl/ providing the a?s provided on sts and reports e life of 30 operation, e life of the maps, parts xception of ter than three ally requiring fe of the pumps ife of 10,000 he appropriate inter manu- .n 1 r be of the cne *ings shall use i&ing on the shaft: 3 either by ibrations fied (see 6.1)'' EXHIBIT C DCOOBER 31, 1967 MELITABY SPECIFICATION S, CEI'ITRITOAL, BOILER FEED, (XULEKI-STftGE) r rinnufncturcro had not been asked to develop >n of `his polygraph, it ms noted that the l "C" Specification vao exactly the ectp.o cs the "B,! edition, and therefore, the following tent trended as a substitute for the reprinted version: ted to this specification sliall be products made by mnnhave teen qualified, to a previous revision of this spediso have chosen to qualify to this revision by providing; the arts required herein prior to quotation. Pusms provided on his specification must be verified by the tests and reports in prior to delivery." e the manufacturers had not been asked to develop on of this paragraph, it was noted -teat the reprinted ificat-ion was not acceptable without the following additional ded paragraph: (The initial paragraph Is quoted in connech consents on MIL-P-18472E.) r-.t set forth above shall not be construed or interpreted as a lirement nor otherwise ""affect' the smiufddturer* a warranty'.^1 ' .e the manufacturers had not been asked to develop .on of this paragraph, it was noted that the re text of the "C" Specification was acceptable as lot be damaged or caused to malfunction either by internally itions, or by the environmental vibrations specified in Frequencies shall be as specified {see 6.1).*' inufacturers were asked to submit a revised text and nded the following with the revisions indicated by ning: 1 be of the double volute, diffuser or concentric casing design radial bearing loads. Single volute casings will be permitted volute cutwaters are staggered, in such manner 3 to minimise ng loads, " hile the manufacturers were not asked to provide a . draft of this paragraph, nor was there record that ;e had been requested, the Sub-Committee recommended lowing, with the revised portions underlined: i or heavy dowel pins shall be provided to insure maintenance of ' casing halves in reassembly. Tapered dowel pins shall be ;siGiant material, sh..11 have the Jorge end threaded and proi_nui, and niia.il be secured against coming adrift under shoot. xmrrsm; REVIEW KILITSARY SPECIFICATIONS exhibit b OCTOBER J.X, 1967 SLM00119 MIL-P-l?88lC - 3- 6.3 - While the manufacturers had not been asked to develop a revision of thin paragraph, it was noted that the original tent had. teen revised in the "C" Specification reprint end that the reprint was new incompatible with 3-1. mentioned above. Accordingly, the following underlined revisions ere recotir.e;nced: 'Vith respect 'o products requiring qualification, awards vill be made only for products which are at the time set for opening of bids, qualified for inclusion in applicable Qualified Products List QPL 17881 whether or not such products have actually been go listed by that date. , In this regard, bids from ranixfe.cturers who were listed on the applicable Qualified Products List to the previous issue of this specification 'hill be acceptable provided that qualification for each class pump is per formed on the initial contract awarded to such manufacturer. The attention of the suppliers is called to this requirement, and manu facturers are urged to arrange to have the products that they propose to offer to the Federal Government tested for qualification in order that they may be eligible to be awarded contracts or orders for the products covered by this specification. The activity responsible for the Qualified Products List is the Naval Ship Engineering Center, Department of the Navy, Washington, D. C. 20360, and information pertaining to qualification of products may be obtained from that activity. Application for Qualification tests shall be made in accordance with "Provisions Governing Qualifications SD-6" (see 6.4)." SFECIAL SUB-C0KMIT2EE; C0MT3ES TO REVIEW MILITARY SPECIFICATIONS -3- EXHIBIT B OCTOBER 31, 1967 SLM00120 MIU-P-I763Q2 -2- 3*2.12.4 - The namrfacturers were requested to develop a revised draft of this paragraph, and therefore, the following is recommended, the underlining indicating the actual revisions: "Pitted holts or heavy dowel pins shall he provided in flexible-coupled class C-2 pimps, to insure maintenance cf alighnent of casing halve0 in reasscrlly. Vapored dowel pins shall he corrosion resistunt material, shall have the large end threaded and provided with a nut, end shall ha cocured against coming adrift under shock loading," 3.2.12.0 - 'Hie manufacturers vere requested to develop a revised draft of this paragraph. The following is recommended, the underlining indicating the actual revisions: "Casing thickness shall include an allowance for corrosion and the possi bility of core shift. The minimum casing thickness shall be 1/2 inch, excluding nozzles, for punros with a rated total head of 100 psl and above.M 4.2 - The manufacturers were requested to develop a revised text for this paragraph. The text now included in MIL-P-176392 is acceptable, provided that paragraph 3*1 is revised as recommended above so that consistency will exist, The present text of paragraph 4.2 is quoted ae follows: "Qualification. - Tests shall be performed at a laboratory satisfactory to NAVSiSC. The several qualification tests on one pump design may be con ducted concurrently if practicable. The tests shall fully establish that the product has the reliability and performance capability herein specified. The following tests shall be performed: (a) The performance evaluation test specified in 4.4.2 through 4.4.2.4. (b) The design evaluation tests specified in 4.4.3 through 4.4.3.2,6 and 4.4.3.4 through 4.4.3.4.1." 4.2.1 - The manufacturers vere requested to develop a revised draft of this paragraph. The following, which is the same as paragraph 4.2,1 of MXL-P10472E, is recommended: "The qualification specified herein shall apply separately to one pump of each class. Separate qualification tesbs are required on vertical nrd horizontal units cf each class. Qualification will include all sizes for a specific class." ---1 ............... ......................... ...... 4.2.2 - The manufacturers were requested to develop a revised draft of this paragraph. The following, which i6 consistent with paragraph 4.2.2 of MIL-P1647215, is recommended: "The potential supplier desiring qualification of a specific pump cJ ass snail submit do si gn datacard cal" Llati'.Ti to bA.VSEC for review and ar>- pr-val as a prcrcgui c:-.to to the p. ri'or->vece of the qualification tents specified __The design record shall be submitted upon completion of the qualification tests.,r SOCIAL SUB-COMMITTEE; eOI-2-lITTBE TO BEVIES MILITARY SHBCIFICA.TIOES - 2- EXHIBIT C OCTOBER Tl. 1967 SLM00121 6.3 - While the manufacturers had. not been asked to develop a revision of this paragraph, the text contained in MXIh~P-1T639B vjas not acceptable, and the following underlined portion is recommended: "With respact to products requiring qualification, awards will be mads only for products which are at the time set for opening of bids, qualified for inclusion in the .applicable Qualified Products List whether or not such products Lave actually been so listed by that date. In this regard, bids from manufectirrers who were listed on the applicable Qualified iVodncts List to the previous issue of tills specification will be acceptable pro vided that qualification for each class pump is performed on the initial contract awarded to such manufacturer. The attention of the suppliers is called to this requirement, and manufacturers are urged to arrange to have the products that they propose to offer to the Federal Government tested for qualification in order that they may be eligible to he awarded contracts or orders for the products covered by this specification. The activity responsible for the Qualified Products List is the Naval Ship Engineering Center, Department of the Ifevy, Washington, D. C. 20360, and information pertaining to qualification of products may be obtained from that activity. Application for Qualification tests shall be made in accordance with "Provisions Governing Qualification" (see 6.h)." SPECIAL S1T3-C0MMITTEE; COMMITTEE TO REVIEW MILITARY SPECIFICATIONS -k~ EXHIBIT C OCTOBER 31, 1967 MXUP-18682A. 1 October 1966 MILITARY SPECIFICATION PUMPS, CMIIFUGAL, MAIN CONDENSER C2ECUIATBG, F&VPih SHIPBOARD 3.1 - While the record does not show that the manu facturers had been asked to comment on this paragraph, the following, text ic recommended, os being parallel to the corresponding paragraph recommended in KL~P-184722, M1L-P-17881C, and MIL-P-17639B: "The pumps quoted to this specification shall he products made by manu facturers -who have been qualified to s previous revision of this speci fication or who have chosen to qualify to this revision by providing the tests and reports required herein prior to quotation. Pumps provided on contract to this specification must be verified by the tests and reports required herein prior to delivery. '* 3.2.2.2-While the manufacturers had not been aslced to develop a revision of this paragraph, the text of MH-P-18682A was not acceptable, and the following, which is the same as that recommended for MEL-P-18472E, M3X-P-17881C, and MIL-P-I7639B, is recommended vith the additional paragraph underlined: "Each pump shall be designed to have a satisfactory service life of 30 years of which 4-0 per cent shall be assumed to be actual operation. There shall be no limit on the number of starts during the life of the pump. It shall be assumed that during the life of the pump, parts subject to unavoidable wear and deterioration (with the exception of packing and seals) will be replaced at intervals not shorter than 3 years. The parts subject to wear, deterioration, and normally requiring replacement at 3 year intervals during the service life of the pump (with the exception of packing and seals; shall be designed for a life of 10,000 actual operating hours, and they shall be identified in appropriate drawings and manuals. The requirement set forth above shall not be construed or inter preted as a warranty requirement nor otherwise affect the manu facturer ' s warranty.11 3.2.3.3 - While the record does not show that the manu facturers had been asked to develop a revision of this paragraph, the text contained in KEL-P-13682A was not acceptable, and the following paragraph, which corresponds to paragraph 3*^.2.5 of MIL-P-3.8472S, is recommended: "Pump units shall not be damaged or caused to malfunction cither by Internally excited vibrations, or by the environmental vibrations specified in ML-STD-I67. Frequencies shall be as specified (see 6.l)." SPECIAL SUB-COMMITTEE; COfmTm* '10 REVIEW MILITARY SPECIEICAT/.OLS EXHIBIT D OCTOBER 31, 1967 SLM00123 MH-P-18682A -3- 4.4.3 - While the manufacturers had not been asked to develop n revision of this paragraph., the following is a rec ommended revision, 'which is the same as corresponding paragraphs in MIL-P-18472E and MIL-P-17881C: "Dssjgn emlnation tests. - One pump of each class, design end size couplets pith the driver and all appurtenances and controls shall successfully undergo the design evaluation tests specified herein. Design changes which in the opinion of the procuring agency may "detrimentally affect the reliability of a previously tested and accepted pump design shall be cause to require new design evaluation tests in part or in full. It shall be at the discretion of the procuring agency to require new design evaluation tests vhen an accumulation of several design changes, each of itself apparently not significant to pump reliability, collectively con sidered render suspect the validity of any one or ell of the previously performed design evaluation tests. An endurance test need not be performed provided that the vendor can demonstrate to the satisfaction of the command or agency concerned that the pump to be offered has proved satis factory in previous Kavy shipboard service under conditions equally as strenuous as those specified in the ordering data. The design evaluation tests shall consist of the following: (a) Endurance test (see 4.4.3-1). (b) Shock test (see 4.4.3.2). (c) Vibration tests (if specified (see 6.l) (see 4.4.3.3). (d) Fatigue life proof test (see 4.4.3-4)." 4,4.3.1.1 - While the manufacturers had not been asked to develop a revision of this paragraph, the following is a recommended revision, which is the same as corresponding paragraphs in KCL-P-18472E and MIL-P-I7639B: "Prior to commencement of the endurance test and Immediately after completion of the pOO hour operating run, the pump shall be disassembled to the extent necessary e.nd the critical dimensions and running clearance, or parts sub ject to wear, erosion and derangement, measured, calculated and recorded. All components such as pump Impellers and casings subject to erosion, corrosion, cavitation, and wear, the effects of which are not subject to routine measurement shall be listed in the inspection record and after completion of the test the condition of each component shall be determined and recorded. 1 6.3 - While the manufacturers had not been asked to develop a revision of this paragraph, the text contained in MIL-P18682A was not acceptable, and the following underlined portion is recommended: '*With respect to products requiring qualification, awards will be made only for products which are at the time set for opening of bids, qualified for inclusion in the applicable Qualified Products List whether or not such products have actually been so listed by that date. In this regard, bids from manufacturers who were listed on the applicable Qualified Products List to the previous issue of this specification will be acceptable provided that Qualification for each claws pump is performed, on the initial contract awarded to such manufacturer. The attention of the SPECIAL S'lILCOWm'KE; COlfcQTTEE '10 REVIEW MILITARY SPECil-ICATIONS -3- EXHIBIT D OCTOBER 31, 196? SLM00124 KEL-P-18632A k- 6.3 - (Contd.) suppliers is called to this requirement, and manufacturers are urged to nrrepee to have the products that they propose to offer to the Federal Gororrraent tested for qualification in order that they may be eligible to he awarded contracts or orders for the products covered by this specifica tion. Sis activity responsible for the Qualified Products List is the Ivaval Ship Engineering Center, Department of the Navy, Washington, D. C. 20360, and information pertaining to qualification of products may be obtained from that activity. Application for Qualification tests shall be made in accordance -with "Provisions Governing Qualification" (see 6,^)." SPECIAL Sim-CONMITTES; COIHITTEE TO REVIEW MILITARY SPECIFICATIONS EXHIBIT D OCTOBER 31, 196? SLM00125