1、5-37-03 MIL-W-4827lA (AR) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, US Arm Armament Research and Development Center, Attn. DRSMC-QA, Dover, New Tng: M201 US ARMY MISSILE COMMAND
2、 11430220 - Gage Assembly, Acceptance Warhead 11430988 - Instruction Tag, Warhead Gage for Interface, M.S . 100.00 Missile Interface 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 th
3、e date of invitation for bids or request for proposal shall apply. ASTM-B 117-73 - Method of Salt Spray (Fog) Testing ASTM-E 8-69 - _- Tension Testing of Metallic Material ASTM-E 18-67 - Tests for Rockwell Hardness and Rockwell ASTM-B 633 - Zinc on Iron and Steel, Electrodeposited Superficial Hardne
4、ss of Metallic Materials Coatings of 2 c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3. Rl3QUIREMENTS 3.1 Material. Materials used in assembling, marking, and packing of the warhead shall be in accordance with all applicable drawings and specific
5、ations. 3.2 Components and assemblies. Components and assentblies shall comply with all requirements specified on drawing F9283999 and associated drawings, and with all requirements specified in applicable specifications and standards. 3.3 Mechanical properties. Cold-working or heat-treating ( i ncl
6、uding quench i ng-and- tempering , norma li zing , norma li zi ng-and- tempering, annealing, and stress-relieving) operations, shail be performed in such a manner as to produce the specified properties uniformly throughout the entire lot. The contractor shall determine the detailed procedures to pro
7、duce parts meeting the required mechanical properties. These procedures shall be documented and submitted with the first article sample to the Contracting Officer. Changes in these procedures shall also be documented and submitted to the Contracting Officer. free of craters. They shall exhibit chara
8、cteristics of good fusion, penetration and soundness of deposit representative of good welding practice. The process shall be such as to prevent warpage beyond dimensional requirements. 3.4 Welding. All skin welds shall be reasonably smooth and 3.4.1 Qualification of welders and welding equipment. O
9、nly welders qualified in accordance with Specification MIL-STD-1595 shall. be permitted to weld aluminum components. A complete qualification test for each welder or welding operator in making warhead skins shall consist of making a butt weld qualification test coupon in accordance with Specificatio
10、n MIL-STD-1595. The test coupon shall be of the same type and grade of material and the same thickness to be used in making the longitudinal seam of the warhead skins. The test coupons must satisfactorily pass the test specified in Specification MIL-STD-1595. Welding equipment shall be qualified in
11、accordance with MIL-W-8604. 3.4.2 Material sag. Sag of material in the area adjacent to the weld shal not be more-than .O10 below the surface of the joined part. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48271A (AR) 3.4.3 Penetrant exam
12、in tion. Cracks and porous areas shall not exceed Imc7i-K%cjt %i in each one inch length. The total length of all cracks and porous areas shall not be more than 2 to inspect for these defects. provided thyTE exceed 1/4 inch in width and 1 inch in length. No more than 3 such areas may be repaired in
13、any skin sect i on. l inches in any skin section. Penetrant examination shall be used 3.4.4 Blow-outs. Bowouts may be repaired and hand welded 3.4.5 Mechanical properties. The tensile strength of aluminum weld-chobe-es than 30,000 pounds per square inch, the yield strength shall not be less than 25,
14、000 pounds per square inch, and the elongation shall not be less than five percent. (5) 3.5 Mechanical properties of component parts. The aluminum - -.-i- used in fabrication of the components shall comply with the minimum requirements specified in the applicable specification for the heat treatment
15、 conditions required. 3.6 Pull test of explosive - assemblies. After the pull test, the gap requirements of the appli-cdfawings shall be met when the assemblies are radiographically examined. 3.7 Functioninp of nose assembly. The nose assembly when disengaged, shall be capaxle of being moved forward
16、 and rotated as required on Drawing 9283999 and returned to the original position and be securely re-engaged without any motion stoppage due to in ter f e rence between parts . -I_ A- - -?- 3.8 Spring embrittlement. Springs which have been treated for embrittleentrelifl show no visual evidence of cr
17、acks and shall not break when pulled to the minimum point of permanent d i s tor ti on. 3.9 Serialization. Each consecutively produced warhead shall be serialy%ber%d-n accordance with MIL-STD-1168. A block of numbers for this purpose shall be furnished by the procuring activity . 4 Provided by IHSNo
18、t for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-W-48271A 13 06 0338187 4 I MIL-W-48271A (AR) 3.10 First article testing. This specification contains technical provisions for first article inspection. Requirements for the submission of first article sample; by t
19、he contractor shall be as specified in the contract. 3.11 Functioning of center ring test assembly. The center ring test assembly after functioning, shall be examined for proper cutting as evidenced by severing of the forward and aft skin sections and the center ring section. This requirement shall
20、apply at ambient, -25OF + So and 140F - 5O. 3.12 Static detonation of warhead. The warhead, when functioned at ambient temperature, shall evidence proper skin cutting (forward to aft and circumferentially) and center ring cutting as determined by analysis of film coverage and recovered hardware. In
21、addition, all explosive elements in the warhead shall be consumed during functioning. 3.13 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
22、, rust, corrosion products, and other 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. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspectio
23、ns and standard quality assurance movisions. Unless otherwise mecified herein or in the contract, ihe provisions of MIL-A-48078 shall apply and are hereby made a part of the detail specification. 4.2 CIassiication of inspections. The following types of inspection shall be conducted on this item: a.
24、First Article Inspection b. Quality Conformance Inspection 4.3 First article inspection 4.3.1 Submission. The contractor shall submit a first article sample as designated by the Contracting Officer for evaluation in accordance with the provisions of 4.3.2. The first article sample shall consist -of
25、the following items in sample quantities as indicated. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-W-48271A 13 99999Ob 03L8188 b Part Description _I- Washer Pin, Lever Spring, latch Rivet, Shoulder Spring, clevis Pin, alignment Pin, shear
26、Spring, torsion Plunger, spring Clevis Skin, nose Nut, adjust Lever, latch Latch assembly End primer Double end primer assembly Double end primer assembly Single end primer assembly S ingle end primer assembly Cable assembly Spring, pushbutton Spring, pushbutton Detonating cord booster Pin, spring L
27、ever, locking Latch, base assembly Hook, latch Arm, hook Boos ter as semb ly Cover booster Container, booster Nut, external wrenching - Bolt, tee Forward shield assembly no. Forward shield assembly no. Aft shield assembly Detonating cord and booster Wedge Filler, ring Filler, side Collar, divider FL
28、SC (100 grain) FLSC (20 grain) MDF (12 grains per foot) Seal, aft section Cone MIL-W-48271A (AR) 1 2 assembly Drawinqs 8831171 8831277 8831279 8833389 8836202 8877425 8877426 9208238 9208288 9208290 9208291 9208303 9208320 9208333 9208361 9208 362-1 9208362-2 9208363-1 9208363-2 9208657 92 O 86 6 2-
29、1 9208662-2 9208663 9208681 9208690 9208708 9208758 9208759 9208777 9208778 9208779 9237309 9237322 9247983 9247984 9247985 9247986 9247988 9247992 9247996 9248003 9253547-1 9253547-2 9253558 9267740 9269668 Quantity 4 4 9 4 9 4 12 9 8 4 1 4 4 2 10 2 2 2 2 2 5 5 10 4 4 4 4 4 10 10 10 8 8 2 2 2 2 2 2
30、 2 1 2 feet 5 feet 5 feet 1 1 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48271A (AR) Part Description D raw i ng s Quantity Skin Spacer Center r ing assembly Center ring test assembly Bolt Explosive, flexible Skin, forward Skin, aft Ring
31、, fuze Ring, aft Ring, center Tube Collar Plug, aft Shield, MDF MDF and primer assembly Nut, clinch Nut, clinch Aft ring assembly Collar and divider assembly Metal Parts Assembly M251 (unpainted) Metal Parts Assembly M251 Latch assembly Set screw Cap screw Nut Washer 9269670 9283962 9283963 9283964
32、9283964 (Modified per 4.5.16) 9283966 9283967 9283968 9283969 9283970 928 39 7 1 9283972 9283973 9283974 9283976 9283981 9283989-1 9 283989-2 9283991 9283997 9283999 9283999 9308333 9313681 MS16998-59 MS21083-N5 MS27183-7 1 2 1 1 10 6 1 1 1 1 1 1 1 1 1 1 4 4 1 1 1 1 2 1 1 4 4 4.3.2 Inspections to be
33、 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 otherwise specified. 4.
34、3.3 Rejection. See MIL-A-48078. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c O -4 CI U al pi rn c H aJ ri U c, .FI 2 c, rn Li .4 Eri I H W GI E-i 3 e rl rf t a I O d m o . . mm* M mmm ni cvd cv m MM . 0. ea . U m al rl c rnl Li rf wo Q Il % w
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