1、, MIL-L-48288 13 7979906 0318483 8 m 5 -3 7- d3 ru-L-48288 (PA) 16 January i974 hIILITARY SPECIFICATION LEAD ASSET4BLY (FOR MINE, Pi56 SUBSYSTZP7) PARTS FOR, AND LOADING, ASSC!IBI,ING ArlTI PACI;I:JG This Specification is not approved for use by all Departments and Agencies of the Department of Defe
2、nse. 1. SCOPE 1.1 This specification covers the inspection of the parts and the loading, assembling and packing of one type of lead assenbly designated as Lead Rssernbly (for Tline, Y56 SubSystem) . 2 . APPLICABLE DOCUivEI?TS 2.1 The following documents of the issue in effect on date of invitation f
3、or bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-P-116 - Preservation, I?etho of NIL-R-398 - RDX MIL-A-2550 - Ammunition, General Specification for STANDARDS MILITARY MIL-STD-105 MIL-STD-109 MIL-STD-331 - Sampling Procedus
4、es and Tables for Inspection by Attributes (ABC-STD-lO5) - Quality Assurance Terms and Definitions - Fuze and Fuze Components, Environmental and Performance Tests fGr - HIS DOCUMENT CONTAINS kf PAGES. O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
5、-MIL-L-48288 13 M 7qqb 0318484 T fl MIL-L-48288 (PA) MIL-STD-414 - Sampling Procedures and Tables for MIL-STD-650 - Explosives; Sampling, Inspection and MIL-STD-I168 MIL-STD-1235 - Single and Multilevel Continuous Inspection by Variables for Percent Defective Testing - Lot Numbering of Ammunition Sa
6、mpling Procedures and Tables for Inspection by Attributes DRAWINGS U. S. ARMY PICATINNY ARSENAL PRODUCT AND PACKAGING DRAWINGS 7548103 - Box, Set-up, Packing, Ammunition, Outer 7548104 - Box, Set-up, Packing, Ammunition, Inner 9204229 - Box, Packing, Ammunition 9287609 - Lead Assembly INSPECTION EQU
7、IPMENT DRAWINGS 9278644 - Firing Assembly and Details (Copies of specifications, standards, and drawings required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the Contracting Officer), 3. REQUIREMENTS 3.1 Material. -
8、Materials shall be in accordance with the applicable drawings and specifications. 3.2 Lead Assembly. - The lead assembly shall comply with all requirements .specified on Drawing 9287609 and with all re- quirements specified in the applicable specifications. 3.3 Moisture Content. - The moisture conte
9、nt of the RDX composition at the time and site of loading shall not exceed 0.20 percent when measured as specified in test method 101.5 of MIL-STD-650. b Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, - MIL-L-48288 13 9999906 0328485 2 = 3.4 Funct
10、ioning. - The Lead !.sscmbly sinall be capable of high order initiation by a T20E1 Electric Petonator across a minimum air gap of 0.150 inches. ?-Tirh order detonation will be evidenced by a depression of a minirnum depth of 0.0135 inches in the steel witness block specified in test 301.1 of r!IL-S?
11、D-?l. 3.5 Workmanship. - All parts and assemblies shall be fabricated, loaded and asseEiblcd in a thorough worhanlike manner. They shall be free of burrs, sharp edges, cracI:s, dirt grease, rust and other foreign niatter. The cleaning method used shall not De injurious to any part, nor shall t?ie pa
12、rts be con- taminated by the cleaning agents. Exterior surface coatincs shal be continuous except for a few liz-it scratchc; not exposing base material. All required mnrkinr;s shall !e neat and. sharply defined. 3.6 First Article Inspection. - Th1.s specification contains technical provisions for fi
13、rst article inspection. T?equircnents for the submission of first article samples by the contractor shall be as specified in the contract. 4. QUALITY ASSURA3CE PROKSIOiJS 4.1 Responsibility for Inspection.-%less otherwise specified in the contract or purchase order, the supplier is responsible for t
14、he performance of all inspection requirements as specified herein. Except as othervise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection re- quirements specified herein, unless disapproved by the Govern- ment. The
15、Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and ser- vices conform to prescribed requirements. Seference shall be made to MIL-STD-109 to define terms used herein. The nrovi- sions of NIL
16、-A-2550 shall apply. Submission of Product.-At the tiine ezch completed lot of items deliverable under the contract is submitted to the Government for acceptance, the contractor s3fiall sug.i-ily the fol- lowing information accompanied by a certif3cat.e which attests that the information provided is
17、 correct and applicable to the product being submitted. 4.1.1 a. A statement that the lot complies w5t.h all of- the quality assurance provisions specified in this specification. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-48288 (PA) with i
18、dentification and date of changes thereto. C. A statement that all. material purchased Dy the con- tractor meets requirements, when sirch material is controlled by Government or commercial specifications referenced in any of the contractual documents, and that certificates of conformance are on file
19、 and available for review. d. ?lumber of items in the lot. e. Date submitted. The certificate shall be signed by a responsible agent of the certifying organization. The initial cert.i f i cate submitted shall be substantiated 57 evidence of the agent c authority to bind his principal. Substantiation
20、 of the agents authority will not be required wlth subsequent certificates unless, dur- ing the course of the contract, this atlthority is ested. in another agent of the certifyinc organization. 4.2 First Article Inspection 4.2.1 Subaission.-Prior to the start of regular production the contractor sh
21、all subnit a first article sample (see 6.1) to a Government approved facility as esig:nated by the contracting officer for evaluation in accordance with the provisions of 4.2.2 and 4.2.3, The first article sample shall consist of 150 loaded lead assemblies, 10 loaded lead assemblies (prior to insert
22、ion of closure disc and crimping), and 50 conpletc sets of parts (50 each of every component) which have been produced by the contractor or furnished by a supplier an which have been manufactured using the same production processes, procedures and equlpnent which will be used in fulfilling the contr
23、act. All parts and materials in- cluding packaging and packing shall Se obtained from the same source of supply as will be used in regular production. Prior to sub- mission, the contractor shall inspect the sample to the degree necessary to assure that it conforms to the requirements of the contract
24、 and submit a record of this inspection with the sample, including a certificate of conformance for materials. A sample containing known defects will not be submitted unless specifi- cally authorized by the Contracting Officer. A first article sample, or portion thereof, as directed b27 the Contract
25、ing Officer, shall also be submitted whenever there is a lapse in production for a period in excess of 30 days or whenever a change occurs in manufacturing process, material used, draving or spec- ification such as to significantly affect product uniformity as determined by the Government. 4.2.2 Ins
26、pections to be performed.-Assemblies and components will be subjected by the Government to any or all of the exam- 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-48288 13 9979906 0318Y87 5 - - NIL-L-48288 (PA) inations and tests specified in
27、 this specification and any or all requirements of the applicable drawings. to comply with any or all of the applicable requirements, the first article sample shall be rejected. The Government reserves the right to terminate its inspection upon any failure of an inert component or subassembly to com
28、ply with any of the stated requirements. sixty (150) loaded lead assemblies and 10 loaded lead assemblies (prior to insertion of closure disc and crimping) shall be submitted in accordance with the provisions of 4.2.1 tor testing as specified in 4.4.3 and 4.4.4. 4,2.3 Rejection. - If any component o
29、r subassembly fails 4.2.4 Loaded Lead Assemblies. - A sample of one hundred 4.3 Inspection provisions 4.3.1 Lot formation.-Tne term “inspection lot“ as used in this specification is defined as an essentially homogeneous col- lection of units of product from which a representative sample is drawn and
30、 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 construed to represent any prior or subsequent quantities pre- sented for inspection. Homogeneity shall be considered to
31、exist provided the inspection lot has been produced by one manufacturer in one unchanged process using the same materials and methods in accorsdance with the same drawings, same drawing revisions, same specifications and same specification revisions and complies with the provisions for submission of
32、 product as specified in MIL-STD- 105. Changes to the process, specifications, or drawings not affecting safety, performance, interchangeability, or storage, as determined by the Government, shall not be deemea to alter the homogeneity of an inspection lot. All material submitted for inspection in a
33、ccordance with this specification shall comply with the homogeneity criteria specified herein regardless of the type of sampling procedure which is being applied to deter- mine conformance with requirements. Lot numbering, as required, shall be in accordance with MIL-STD-1168. 4.3.2 Examination.-The
34、 examinations listed in the follow- ing subparagraphs shall be performed on inspection lots (see 4.3.1) of the components or assemblies designated in the appii- cable paragraph headings. Inspection for critical defects (and major defects, when so specified) shall be 100 percent. Samp- ling plans for
35、 major and minor defects shall be in accordance with MIL-STD-105 except that continuous sampling plans in accor- 5 O Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-4828 13 797770b 0318488 7 = MIL-L-48288 (PA) dance with MIL-STD-1235 may be us
36、ed if approved by the Government. Instead of applying the AQLs designated herein to the groups of major and minor defects listed, the contractor may elect to apply an AQL of 0.40 percent for each major defect and an AQL of 0.65 percent for each minor defect. When this method is elected, it shall be
37、applied to all of the major and minor defects listed in the applicable sub-paragraph of this section, except where 100 percent inspection is specified, and be documented as part of the contractorrs inspection system. Equipment necessary for the per- formance of the inspections listed shall be in acc
38、ordance with 4.3.4. 4.3.2.1 Cup, lead (see dwg. 9287697 covering a detail of dwg. 9287609). Categories defects Critical: None defined Method of Code No. Inspection Maj or: AQL 0.65 percent 101. Length . Gage O1001 102. Outside diameter, max. . Gage 01002 103. Thickness of bottom Gage 01003 104. True
39、 position, inside diam- eter with outside diameter “ Gage 01004 Minor: AQL 0.65 percent 201. Evidence of poor workmanship (see 3.5) Visual O1005 4.3.2.2 Cover, Lead (see dwg. 9287698 covering a detail of dwg. 9287609). Categories Defects Critical: None defined Method of Code No. Inspec tion Ma j or
40、: AQL 0.40 percent 101. Thickness Gage 102. Diameter, min. . Gage 201. Evidence of poor workmanship Minor : AQL 0.65 percent (see 3.5) Visual 02001 02002 02003 6 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-48288 13 = 797790b 0318Lt7 7 M M
41、IL-L-48288 (PA) 4 o 2.2.3 Assembly (see dwg. 9287609 1. Categories Defects Method of Code No. Inspection Critical : 1. Cracks, splits, or cuts Visual O3001 Ma j or : AQL 0.65 percent . . 101. Total length Gage o 300 2 0 300 3 incorrect Visual 03004 to extent that function may be impaired Visual 0300
42、5 Dlinor : AQL 1.50 percent 201. Crimp not full 360 degrees “ Visual 03006 03007 202. Disc folded or wrlnkled Visual 203. Evidence of poor workmanship other than critical above (see 3.5) Visual 03008 102. Outside diameter, max. Gage 103. Lacquer seal missing or color 104. Assembly distorted or damag
43、ed . 4.3.2.4 Box, Set-up, packing, ammunition, inner (see dwg. 7548104). Categories Defects Critical: None defined Code No. Method of Inspection Maj or : AQL 0.40 percent 101. Box damaged exposing contents Visual 102. Label missing or incorrect . Visual 04001 04002 Minor : AQL 0.65 percent 201. Evid
44、ence of poor workmanship (see 3.5) Visua. 04003 4.3.2.5 Box, Set-up, packing, ammunition, outer (see dwg. 7548iQ3). Cat ego rie s Defects Method of Code No. Inspec tion 7 o - I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- _- MIL-L-48288 13 m 7777
45、70b 0338470 5 m MIL-L-48288 (PA) Critical: None defined Major: AQL 0.40 percent . 05001 101. Barrier bag damaged Visual 102. Label missing or incorrect Visual 05002 Minor : AQL 0.65 percent 201. Evidence of poor workmanship (see 3.5) Visual 05003 4.3.2.6 Box, Packing, Ammunition (see dwg. 9.204229 f
46、or Lead Cup Assembly XM804El and Lead Assembly for Mine, M56 Subsystem. Categories De fe cts Method of Code No. Inspection Critical: None defined Plaj or: AQL 0.65 percent . 101. Box damaged Visual O6001 102. Nailing inadequate Visual 06002 103. Strapping missing or loose Visual 06003 or unidentifia
47、ble . Visual 06004 104. Marking incomplete, misleading .$ Minor: AQL 0.65 percent 201. Evidence of poor workmanship . (see 3.5) Visual 06005 f 4.3.3 TESTING 4.3.3.1 Moisture Content (see 3.3). - Major defect - Code No. 03009. - The contractor shall provide adequate controls to insure that the RDX co
48、mplies with the requirements for verifica- tion, the contractor shall select a sample for test from the quantity of RDX used in each eight hours of loading production. A composite sample shall not be used. If the moisture content of the sample exceeds the requirements the loading has not begun, that
49、 quantity of RDX represented by the sample shall be rejected. If components have been loaded with RDX containing excessive moisture, the remaining unloaded HDX and the components shall be rejected. The test procedure shall be as specified in 4.41. 4.3.3.2 Composition (see dwg. 9287609) - Major Defect - Code No. 03010. - A sample of approximately four (4) ounces of 8 Provided by IHSNot for ResaleNo reproduction or n
