ARMY MIL-W-48757-1975 WARHEAD SECTION GM HE M251 AND M251A1 SPARE PARTS FOR《M251和M251A1型烈性炸药导弹弹头零件的备件》.pdf

1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-W-48757 13 m 7737706 OLIS7151 2 -MTL-W-48757 (PA) STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by At tributes (ABC-STD-10 5) MIL-STD-453 - Inspection, Radiographi

2、c DRAW IN G S PICATINNY ARSENAL PRODUCT AND PACKING DRAWINGS ci 1 8808362 8808932 8877425 8877426 8883534 8883538 9208288 9208329 9208608 9237309 9237322 9267740 9281653 9 29 505 4 Packing and Marking for Storage and Shipment Packing for Hardware and Related Items Pin, Alignment Pin, Shear Box, Pack

3、ing for Repair Parts Bag, Packing for Repair Parts Plunger, Spring Lock, tfT1l, Bolt Nose Assembly Nut, External Wrenching Bolt, Tee Seal, Aft Section Cover, Protective and Flag Assembly, Sta. 100 Packing and Marking for Box Packing Ammunition, for Ogive, Rocket: Nose Cone Conical: or Nose Cone, Ogi

4、val 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 invitation for bids or request for proposal shall apply. Al/LERICAN SOCIETY FOR TESTING AND MATERIALS ASTM E 8-69 - Ten

5、sion Testing of Metallic Material (Application for copies should be addressed to: American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pa. 19103) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- z-. MIL-W-48757 13 = 7477906 042

6、7352 4 MIL-W-48757 (PA) 3. REQUIREMENTS 3.1 Material.-Materials shall be in accordance with the applicable drawings and specifications. 3.2 Parts.-The parts shall comply with al1 requirements specified on drawings 8877425, 8877426, 9208288, 9208329, 9208608 9237309, 9237.322, 9267740 and 9281653, al

7、l associated drawings, and with all requirements specified in applicable specifications. 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 man

8、ner 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 mechanic.al properties. procedures shall be documented and submitted with the first article sample to the Contracting Officer.

9、 Changes in these procedures shall also be documented and submitted to the Contracting Officer. and free of cr.aters. They shall exhibit characteristics of good fusion, penetration and soundness of deposit represent- ative of good welding practice. The process shall be such as to prevent warpage bey

10、ond dimensional requirements . These 3.4 Welding.-All skin welds shall be reasonably smooth 3.4.1 Qualification of Welders and Welding Equipment.-Only welders qualified in accordance wtih Specification MIL-T-5021 shall be permitted to weld aluminum components. qualification test for each welder or w

11、elding operator in making warhead skins shall consist of making a butt weld qualification test coupon in accordance with Specification MIL-T-5021. 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. T

12、he test coupons must satisfactorily pass the test specified in Specification MIL-T-5021. Welding equipment shall be qualified in accordance . A complete with MIL-W-8604. 3.4.2. Material Sag.-Sag of material in the area adjacent to the weld shall not be more than .O10 below the surface of the joined

13、part. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48757 13 a 777770b 0427353 b = a MIL-W-48757 (PA) 3 . 4 . 3 Penetrant examination. -Cracks and porous areas shall not exceed 1/2 inch in length in each one inch length. The total length of

14、 all cracks and porous areas shall not be more than 2 inches in any skin section. Penetrant examination shall be used to inspect for these defects. 3.4.4 Blow-outs.-Blowouts may be repaired by hand welding provided they-do not exceed 1/2 inch in width and 1 inch in length. No more than 3 such areas

15、may be repaired in any skin section. 3.4.5 Mechanical properties of welds.-The tensile strength of aluminum welds shall not be less than 30,000 pounds per square inch, the yield strength shall not be less than 25,000 pounds per square inch, and the elongation shall not be more than eight (8) percent

16、. 3.5 Mechanical properties of component part s. -The aluminum used in fabrication of the components shall comply with the minimum requirements specified in the applicable specification for the heat treatment conditions required. 3.6 Functioning of nose assembly.-The nose assembly with the telescope

17、 tube held firmly shall be moved forward, rotated and returned to the original position without any moti.on stoppage due to interference between parts. 3.7 Spring embrittlement .-Springs which have been treated for embrittlement relief shall show no visual evidence of cracks and shall not. break whe

18、n pulled to the minimum point of permanent distortion. 3.8 Submission of results of contractor-conducted examinations and tests.-The contractor shall forward copies of the results f any of his examinations or tests to the designated address as required by the contract. (See 6.4) 3.9 Workmanship.-All

19、 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 other foreign matter. The cleaning method used shall not be injurious to an

20、y parts, nor shall the parts be contaminated by the cleaning agents. All marking and stamping shall be neat and sharply defined. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. - MIL-W-48757 13 = 7797706 0427354 8 W -. .t . MIL-W-48757 (PA) 3-10

21、First article testing.-This specification .contains technical provisions for first article inspection. for the submission of first article samples by the contractor shall be as specified in the contract. Requirements 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspections.-Unless otherwis

22、e specified herein or in the contract the provisions of MIL-A- 48078 shall apply and are hereby made a part of the detail specification. of inspection shall be conducted on this item: 4.2 Classification of Inspections.-The following types a. First Article Inspection b . Quality Conformance Inspectio

23、n 4.3 First Article Inspection.- 4.3.1 Submission.-The contractor shall submit a first article as .designated by the Contracting Officer for evaluation in accordance with the provisions of 4.3.2. .The first article sample shall consist of the following items in sample quantities as indicated. Part D

24、escription Drawings Pin, alignment Pin, shear Plunger, spring Lock, “T1I Bolt Nose assembly Skin, nose Rod, telescope Tube, telescope Block, telescope Latch assembly Spring, latch Spring, torsion Spring, pushbutton Spring, pushbutton Nut, external wrenching Bolt, tee 8877425 8877426 9208288 9208329

25、9208608 9208291 9208304 9208310 9208327 9208333 8831279 9208238 920 8662-1 9208662-2 9237309 9237322 Quantity 2 6 4 4 1 1 1 4 4 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I -_ - MIL-W-48757 13 777770b 0427355 T MIL-W-48757 (PA) Cover, protecti

26、ve and fiag assembly, Sta. 100 9281653 Cover, protective - (modified) 9 281 708 Flag, signal 9280820 1 1 1 4.3.2 Inspections to be Performed.-See MIL-A-48078 (PA) and Table 1 herein. 4.3.3 Rejection.-See MIL-A-48078 (PA) 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without

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