1、MIL-W-48381 (PA) 23 September i974 MILITARY SPECIFICATION WARHEAD SECTION, GM, PRACTICE, LIGHTWEIGHT: M252E1 PARTS AND ASSEMBLING This Specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification contains requirements not normally co
2、vered by the drawings and provides quality assurance provisions for the fabrication of parts and assembling of the Warhead Section, GM, Practice, Lightweight: M252E1. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids, or request for proposals,
3、form a part of this specification to the extent specified herein. SPECIFICATIONS “ILITARY MIL-T-5021 - Tests Aircraft and Missile Welding Operators Qualifica- tions MIL-1-6812 - Bolt, Aircraft MIL-1-6866 - Inspection Process, Magnetic Particle MIL-S-7742 - Screw threads, standard, optimum selected s
4、eries; General Specification for MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for FSC: i340 A Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-g3L 13 I 9997906 0339624 5 I MIL-W-48381 (PA) STANDARDS MIL
5、I TARY MIL-STD-453 - Inspection, Radiographic MIL-STD-1168 - Lot Numbering of Ammunition DRAWINGS PICATINNY ARSENAL PRODUCT AND PACKAGE DRAWINGS 9216660 - Shipping and Storage Container for 9294619 - Warhead Section, GM, Practice: 9294724 - Marking Instructions for Warhead Lance Warhead Sections and
6、 Adaption Kits, Pkg and Mkg Lightweight, JI25231 Section, GM, Practice LT WT- I M252E1 INSPECTION EQUIPPIENT DRAWINGS 11430242 - Runout Fixture Plate, M252 Warhead 11430243 - Instruction Tag Runout Fixture, M252 2.2 Other publications.-The following documents form a part of this specification to the
7、 extent specified herein. Unless otherwise indicated, the issue in effect on the date of invitation for bids or request for proposal shall apply. ASTM E 18-67 - Tests for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 3. REQUIREMENTS 3.1 Material.-Materials shall be in acc
8、ordance with the applicable drawings and specifications. 3.2 Parts.-The parts shall comply with all requirements specified on Drawing 9294619, all associated drawings, and with all requirements specified in applicable specifications. 2 Provided by IHSNot for ResaleNo reproduction or networking permi
9、tted without license from IHS-,-,-MIL-U-48381 13 m 39973Ob 0339b25 7 . MIL-W-48381 (PA) 3.3 Mechanical properties.-Cold-working or heat-treating (including quenching-and-tempering, normalizing, normalizing- and-tempering, annealing, and stress-relieving) operations, shall be performed in such a mann
10、er as to produce the specified properties uniformly through-out the entire lot. The contractor shall determine the detailed procedures to produce parts meeting the required mechanical properties. These procedures shall be documented and submitted with the first article sample to the Contracting Offi
11、cer. Changes in these procedures shall also be documented and submitted to the Contracting Officer. 3.4 Welding.-All skin welds shall be reasonably smooth and free of craters. They shall exhibit characteristics of good fusion, penetration, and soundness of deposit representative of good welding prac
12、tice. The process shall be such as to prevent warpage beyond dimensional requirements. Qualificatioi? of Welders.-Only welders qualified in accordance with Specification MIL-T-5021 shall be permitted to weld steel components. A complete qualification test for each welder or welding operator in makin
13、g warhead skins shall consist of making butt weld qualification test coupons in accordance with Specification MIL-T-5021. The test couz)ons 3.4.1 must satisfactorily pass the test spcified in Specification MIL-T-5021 . 3.4.2 Material sag.-Sag of material in the area adjacent to the weld shall not be
14、 more than .O10 below the surface of the joined part. 3.5 Workmanship.-All parts and assemblies shall be fabricated and finished in a thorough, workmanlike manner. They shall be free of burrs, chips, sharp edges, cracks, unblended radii, surface defects, dirt, grease, rust, corrosion products, and o
15、ther foreign matter. The cleaning method used shall not be injurious to any parts, nor shall the parts be contaminated by the cleaning agents. All marking and stamping shall be neat and sharply defined. 3.6 First article testing.-This specification contains technical provisions for first article ins
16、pection. Requirements for the submission of first article samples by the contractor shall be as specified in the contract. 4. QUALITY ASSURANCE PROVISIONS 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a. First article inspection b. Quality confor
17、mance inspection 4.3.1 Submission.-The contractor shall submit a first article sample as designated by the Contractor for evaluation in accordance with the provisions of 4.3.2. sample shall consist of the following items in sample quantities The first article as indicated. Part Description Warhead S
18、ection, GM Practice: Lightweight M252El Nose cone tip Nose cone skin Nose cone assembly Skin, forward Skin, center Skin, aft Bulkhead assembly, nose cone Frame extension assembly, welded Frame assembly, welded Frame assembly Bulkhead assembly, aft Frame assembly, warhead Cable Assembly Bolt, Tee Nut
19、, external wrenching Pin, alignment Pin, shear Seal, aft section Drawing No. 9294619 10 2460 34 10 2460 38 10246031 10246028 10 24 60 26 i0246033 9294699 9294697 9294698 9294702 10246071 9294703 9294695 9237322 9237309 8877425 8877426 9267740 Quantity 1 1 1 1 1 1 1 1 1 1 1 1 1 1 8 8 4 12 1 4.3.2 Ins
20、pections to be performed.-The First Article parts submitted in accordance with Paragraph 4.3.1 will be subjected. by the Government to any or all the requirements of the applicable drawings and to the inspections of Table I. All inspections listed in Table I shall be classified Major unless otherwis
21、e specified. 4.3.3 Rejection.-See MIL-A-48078 (-PA). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-E W Ei n a Z !I U ni a rl B if - m LI . -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M a Cu
22、 1 : 9 O l-l Cu e . 8 . . 8 . e Q. D b W Cu Cu lu Cu rl Cu rl Cu Cu T! e e =t =I- =l. f =l. =l. =l. e =r =r . =r =r ;* . e e Cu Cu Cu Cu N OJ (u e e m ci1 m m rn m m m +s o aJ k o) F, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L L -T- m 8 Ir) Pr
23、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48381 (PA) 4.4 Quality Conformance Inspection.- 4.4.1 Inspection Lot Formation.-Inspection losts shall In comply with the lot formation provisions of MIL-A-48078. addition, inspection lots of warhea
24、ds shall contain: manufacturer. a. xr48ig Fuzes with the same interfix number from one 4.4.2 Examination.-See MIL-A-48078 (PA) a. Sampling Plans.-Unless otherwise specified in the Classification of Defects and Test tables, sampling plans for major and minor defects shall be in accordance with MIL-ST
25、D-105 Inspection Level II. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I I OT: li b rl B .a :(u I. !Cu I. . =r i* - Q1 E rl OI m U 9) 2 2 %4 k . I
26、 P4 rl I k 5: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CI a, CI rl E n h 4 a m 2 a C O u al a 2 rl o O d rl Q) z 2 Q) s a .u 8 O pi ec O Q) z a ri * w Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
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30、i ld4 SI *,I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(u rl I4 al o 4 *, 2 Em a* 3: rq a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
