1、MIL-W-q272 13 W 7777706 0427480 T W This specification is approved for use by all Departments and Agencies of the Department of Defense t MIL-W- 4 82 7 2 (PA) 26 November i973 MILITARY SPECIFICATION WARHEAD SECTION, .GM, HE: 251 LOADING, ASSEMBLING AND PACKING 1. SCOPE 1.1 This specification covers
2、the loading, assembling and packing for one type of warhead section designated as Warhead Section, GM, HE: XM25l. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitations for bids or request for proposal, form a part of this specifTcation to the extent specif
3、ied herein: SPECIFICATIONS FEDERAL MILITARY MIL-A- 2 5 50 - Ammunition, General Specification f cir STANDARDS MIL I TARY MIL-STD-10 5 - Sampling Procedures and Tables for Inspection by Attributes ( 1!B C-S TD- 1 O 5 ) MIL-STD-109 . - Quality Assurance Terms and Definit ions MIL-STD- 11 6 8 - Lot Num
4、bering of Ammunition FSC: 1340 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-98272 53 = 7779706 0427483 3 W MIL-W-48272 (FA) . MIL-STD- 12 35 - Single and Multilevel Continu- 0u.s Sampling Procedures and Tables for Inspection by Attributes DR
5、AW1 NGS U.S. Army Armament Command 9284000 - Warhead Section, GM, HE: XM25l (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the Contracting Officer
6、). 2.2 Other publications.-The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on the date of invitations for bids or request for proposal shall apply. CODE OF FEDERAL REGULATIONS . Title 49 - Transportation, Parts
7、 0-190 (The Code of Federal Regulations is available from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C., 20402. Orders should specify, “49 CFR 0-190 (latest revision)“.) 3. REQUIREMENTS 3.1 Material.-Materials shall be in accordance with the appli- cable drawings
8、 and specifications. 3.2 Parts.-The parts shall comply with all requirements specified on Drawing F-9284000, all associated drawings, and with all requirements specified in applicable specifications. 3.3 Stability of bag and filler assembly.-The foaming filler in the bag assembly shall expand and ac
9、hieve a uniformly firm set within the specified time after removal from cold temperature storage. 3.4 Continuity and resistance of loaded warhead when fuze is installed at time 0.f loa.ding.-The cable assembly in the loaded warhead shall meet the continuity and resistance require- ments listed below
10、: 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-W-48272 (PA) a. With 811 Fuze Disconnected: From Connector To Connector 9208142 11 9208136 Re qui reme nt C O. 5A max b. With XM811 Puze and fuze gasket (Dwg. 9267741) installed: From Connector
11、 To Connector 9208136 9208136 . Requirement P G H H a v - X W R v C N ,z Y U b F W R A - 3.1 + 1.Ofi 1. O rimax 1,OCLmax 1. O ,L max 1.O.h max 1.O.n max 1. On. max 1.02 max O. 5:i max O. 5n max O . 5 max 3.5 Plot of radial C.G. and principal axis of inclination.-The Dlot of the radial C.G. and princ
12、ipal axis of inclination for each warhead shall fall within th “acceptable“ envelope of Figure 1. 3.6 Workmanship.-All parts and assemblies shall be fabri- cated, loaded and assembled in a thorough, workmanlike manner. - They shall be free of burrs, sharp edges, cracks, dirt, grease, rust, and other
13、 foreign matter. The cleaning method used shall not be injurious to any part, nor shall the parts be contaminated by the cleaning agents. Exterior surface coatings shall be con- tinuous; however a few light scratches not exposing base material may be permitted. All required marking and stamping shal
14、l be neat and sharply defined. 3.7 Submission of results of contractor-conducted examnations and tests .-The contractor shall forward copies of the results o any of his examinations or tests to the designated address as required by the contract. (see 6.5). 4, QUALITY ASSURANCE PROVISIONS _l_ 3 Provi
15、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48272 (PA) 4.1 Responsibility for inspection.-Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified h
16、erein. Except as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspection s
17、et forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Reference shall be made to MIL-A-2550 shall apply. 4.1.1 Submission of product.-At the time the completed lot of items deliverable under the contract is submi
18、tted to the Government for acceptance, the contractor shall supply the follow- ing information accompanied by a certificate which attests that the information provided is correct and applicable to the product being submitted: a. A statement that the lot complies with all the quality b. Drawing and s
19、pecification number and date, together C. A statement that all material purchased by the contractor assurance provisions specified in this specification. with identification and date of changes thereto. meets requirements when such material is purchased by the contractor or commercial specifications
20、 referenced in any of the contractual documents, and that certificates of conformance are on file and available for review. d. Number of items in the lot. e. Date submitted. The certificates shall be signed by a responsible agent of the certifying organization. The initial certificate submitted shal
21、l be substantiated by evidence of the agents authority to bind his principal. Substantiation of the agents authority will not be required with subsequent certificates unless, during the course of the contract, this authority is vested in another agent of the certifying organization. 4.2 First articl
22、e inspe.ction.-This section is not applicable to this specification. 4,3 Inspection provisions.- 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48272 -(PA) I 4.3.1 Lot formatAon.-The term “inspection lot“ as used in this specification is def
23、ined as an essentially homogeneous collection of units of product from which a representative ._ sample is drawn and inspected to determine conformance with applicable requirements. The sample selected shall represent only that quantity of units from which the sample was drawn and shall not be const
24、rued to represent any prior or subsequent quantities presented for inspection. Homogeneity shall be con- sidered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process in accordance with the same drawing, same drawing revision, same specification and sam
25、e specification revision, and complies with the provisions for submission of product as specified in MIL-STD-105. Changes to process, specification, or drawing not affecting safety, performance, interchangeability, or storage, as determined by the Government, shall not be deemed to alter the homogen
26、eity of an inspection lot. All material submitted for inspection in accord- ance with this specification shall comply with the homogeneity criteria specified herein regardless of the type of sampling procedure which is being applied to determine conformance with requirements. Lot numbering, as requi
27、red, shall be in accordance with MIL-STD-1168. Each inspection lot shall contain: a. Metal parts assemblies of one lot interfix number b. Grenades from one lot interfix number from one C. Warhead fuzes of one lot interfix number from from one manufacturer. manufacturer. one manufacturer. 4.3.2 Exami
28、nation.-The examinations listed in the following subparagraphs shall be performed on inspection lots (see 4.3.1) of the components or assemblies designated in the applicable paragraph headings. Inspection for critical defects (and major defects, when so specified) .shall be 100 percent. Sampling pla
29、n for major and minor defects shall be in accordance with MIL-STD-105 except that continuous sampling plans in accordance with MIL-STD-1235 may be used if approved by the Government. Individual defects shall have an AQL of 0.40 percent for each major defect and an AQL of 0.65 percent for each-minor
30、defect. Equipment necessary for the performance of the inspections listed shall be in accordance with 4.3.4. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48272 (PA) 4.3.2,l Metal parts assembly, XM251 (See Dwg. 9283999).- Categories De f e
31、 ct s Method of Code Critical: None defined Major: 100% Inspection 101. Gap between booster and end Inspection NO primer in forward shield assembly No. 1, max (2 places) port covers removed - See View HH Gage O1001 102. Gap between booster and end primer in double end primer assembly, max (4 places)
32、 port covers removed - See Section BE Gage 01002 103. Gap between booster and end primei. in forward shield assembly No. 2, max. (2 places) port covers removed - See View TT Gage 01003 104, Centerline mismatch of booster and end primer in forward shield assembly No. 2, max. (2 places) port covers re
33、moved- See View TT Gage 01004 105. Gap between booster and end primer in aft ring assembly, max. (with booster covey off) See 4.4.8 - See View L Gage 01005 primer in MDF and primer assembly, min. (with booster cover off)-See View L Gage O1006 107. Centerline mismatch of booster end primer assembly,
34、max. (with barrier cover off)- 106. Height of booster above end See View ZZ Gage 01007 108, Gap between booster and end primer in MDF and primer assembly, max (with booster cover off)-See View ZZ Gage 01008 109. Gap between booster and primer in aft shield assembly, max, (2 places) Gage 01009 110, A
35、ny component ioose, missing or damaged Visual O1010 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48272 (PA) Minor: 201. Evidence of poor workmanship O1010 (See 3.6) Visual 4,3.2.2 Metal parts assembly, with hose assembly and aft ring assem
36、bly removed (-sce dwg: 92”83999) .- Categories Defects Method of Code Inspection No. Critical: None defined Major: 100% Inspection 101. Flexible explosive missing from fuze ring (peel tape back) Visual/Manual 02001 102. Gap between booster and de- tonating cord booster in detonating cord and booster
37、 assembly (4 places with boosters assembled to aft ring assemb1y)See Section HH Gage 02002 Minor: 201. Evidence of poor workmanship (See 3.6) Visual 02003 4.3.2.3 Bag (See Dwg. 8880946-1) Categories Defects Critical: None defined Method of Code Ins p e c t ion No. Major : 101. Width Gage 102. Distan
38、ce to radius Gage 103. Radius Gage . Minor: 201. Evidence of poor workmanship (See 3.6) Visual 03001 03003 03002 03001 7 i. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48272 13 W 9999906 0427487 2 W MIL-W-48272 (PA) 4.3.2.4 Bag (See Dwg, 88
39、80946-2) Cat egories Defects Method of Code Inspection No. Critical: None defined Maj or: 101. Length 102, Width Gage 04001 Gage 04002 Minor : 201. Evidence of poor workmanship lls3.2*5 Bag assembly (See Dwg. 8880945) (See 3.6) Visual 04003 Cat e go ries Defects Method of Co de Inspection No, Critic
40、al: None defined Major: 100% Inspection 101. Cut or tear Visual 05001 102. Stitches broken or missing Visual 05002 Minor : 201. Evidence of poor workmanship (See 3“6) Visual 05003 4-3.2.6 Bag and filler assembly (See Dwg. 8880943) Cat e go ri es Defects Method of Code Inspection No. Critical: None d
41、efined Major: 100 Percent Inspection 101. Piller missing Visual 06001 Minor : 201. Evidence of poor workmanship (See 3.6) Visual . 06002 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48272 (PA) . 4.3.2.7- Bag, polyethylene (See Dwg. -928751
42、1) Code Cat egories Defects Method of Inspection No. Critical: None defined Major: 100% Inspection 101. Cut or tear Visual 07001 Ma j or : . 102. Length . 103. Width Gage Gage 07002 07003 Minor: 201. Evidence of poor workmanship 4.3.2.8 Bag and bag and filler-assembly (See Dwg. 9287515) (See 3.6) Vi
43、sual 07004 Categories Defects Method of Code Inspection No. Critical: None defined Major: 100% Inspection 101. Flaps facing wrong direction Visual 08001 end of polyethylene bag .- Visual 08002 102. Open end of bag and filler assembly facing toward open Minor: 201. Evidence of poor workmanship (See 3
44、.6) Visual 08003 4.3.2.9 Block, wood (See Dwg. 9287485) - Categori.es Defects Method of Inspection Code No. Critical: None defined Maj or: 101, Length 102, Width 103. Height Gage Gage Gage ogooi 09002 09003 Minor: 201. Evidence of poor workmanship (See 3.6) Visual 09004 9 Provided by IHSNot for Resa
45、leNo reproduction or networking permitted without license from IHS-,-,-Categories Defects Method of Inspection Critical: None defined Major: 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. Minor: 201 . 100% Inspection Containment block pad missing or improperly in- stalled Wood blocks missing
46、 Distance to bombs and wood blocks Polyethlene sheet improperly installed, torn, or missing Incorrect number of bag and bag and filler assemblies Bag and bag filler assembly flaps facing forward Wedges missing or improperly ass emb led Skin missing or improperly assembled Spacer missing or improperl
47、y Insulation tape missing damaged or improperly aasembled Visual Visual Gage Visual Visual Visual Visual Visual Visual - installed on aft ring assembly O-Ring missing, damaged or improperly installed on aft ring ass emb ly Visual Visual Evidence of poor workmanship (See 3-41 _ Visual Gode No. 10001
48、10002 10004 1000s i0006 10007 10008 iooog 10010 10011 10012 Categories . Defects Method of Code spec t ion No. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i1003 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
49、from IHS-,-,-MIL-W-4272 13 W 9797706 Oq27L171 q W MIL-W-48272 (PA) 4.3.2,12 Warhead section, GM, HE: XM251 during and after assembly of fuze, port covers, and boosters (3ee Dwg. 9284000) Categories Critical : 1. Fuze armed Defects Method of Inspection Visual Major: 101 I 102. 103. 104. 105. 106. 108. 107. 109 Minor: 201. 10
