1、MIL-G-63343 (AR) 11 JULY 1980 MILITARY SPECIFICATION GRENADE XM74, HEMISPHERES FOR I This specification is approved for use by the U.S. Army Armament Research and Developent Command and is approved for use by all Departments and Agencies of the Department of Defense. 1. SOOPE 1.1 This specification
2、contains requirements not covered by the drawings and provides quality assurance provisions for the fabrication of the Male and-Female Hemispheres for the XM74 Grenade. 2. APPLICABLE DOCUMENTS 2.1 Issue of documents. - The following documents of the issue in effect on date of invitation for bids OK
3、request for proposal, form a part of this specification to the extent specified herein. . SPECIFICATIONS MILITARY MIL-1-6866 - Inspection, Penetrant Method of MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification For e FSC: 1375 Beneficial commenta (recommendations,
4、additions, deletionr) and any pertinent data wbich may be of um in improving this document rhoold be addremed to: Commander, US Amp Armament Remarch and Development Command, Attn. DRDARQA, Dover, New Jersey 07801 by piing the whddresssd 8trndu;dhtion Document Improvement Praposrt (DD Form 1426) appe
5、aring at the end of thia document or by letter. / 7 / THIS DOCUMENT CONTAINS 1% PAGES o - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-? NIL-G-63343 13 m 7777906 03q8713 6 II MIL-63343 (AR) STANDARDS MI LI TARY MIL-STD-105 - Sampling Procedures an
6、d Tableo for MIL-STD-129 - Marking for Shipment and Storage Inspec tion by At tr ibu tea DRAWINGS US ARMY ARMAMENT RESEARCH AND DEVELOPMENT OOWUND 9298784 - Female Hemisphere 9298785 - Male Hemisphere 9313567 - Disc, Tungsten 9313626 - Tungsten, Pawder Alloy (Copies of specifications, standards, dra
7、wings, 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.) AMERICAN SOCIETY FOR TESTING AND MATERIALS . ASTM E8 - Tension Testing of Metallic Materials ASTM E18 - Rockwell
8、Hardness and Rockwell Super- ficial Hardness of Metallic Materials ASTM B311 - Density of Cemented Carbides (Application for copies should be addressed to: Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103) American 3. REQUIREMENTS 3.1 Material. - Materials shall be in acco
9、rdance with the applicable drawings, specifications and standards. 3.1.1 Tungsten powder. - The powder shall be hydrogen reduced tungsten powder produced by normal production methods. 3.1.2 Alloying elements. - Elemental or prealloyed powders for alloying shall be high purity (99.5% by weight minimu
10、m). . 2 ,- i. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-63343 13 W 7999906 0348734 M MIL-G-63343 (AR) 3.2. Parts. - All parts shall be in accordance with the - applicable drawings, specifications and standards. 3.2.1 Disc - 3.2.1.1 Micros
11、tructure. - The microstructure shall exhibit a uniform distribution of tungsten and binder material and no matrix depletion (porosity) when viewed at 200 magnifications and tested as specified in 4.5.3. 3.2.1.2 Physical quality. - Material shall be pressed as one piece with no sinter brazing or othe
12、r joining methods permit ted. 3.3 First article inspection. - This specification contains technical provisions for first article inspection. Requirements for the submission of first article samples by the contractor shall be as specified in the contract. 3.4 Workmanship. - All parts shall be fabrica
13、ted in a thorough, workmanlike manner. They shall be free of burrs, chips, sharp edges, cracks, surface defects, dirt, grease, rust, corrosion products, and other foreign matter. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the cleaning agents. A
14、ll required markings shal be neat and sharply defined. Scoring shall be full, complete and undamaged over the required area. 4. QUALITY ASSURANCE PRVISIONS 4.1 Responsiblity for inspection and standard quality assurance provisions. - Unless otherwise specified herein or in the contract, the provisio
15、ns of MIL-A-48078 shall apply and are _. hereby made a part of this detail specification. 4.2 Classification of defects. - The following types of inspection shall be conducted on this item: a. First Article Inspection b. Quality Conformance Inspection 4.3 First article inspection * 3 Provided by IHS
16、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-63343 13 9 777770b 03Ll8715 T MIL-0-63343 (AR) 4.3.1 Submission. - The contractor shall submit a firet article sample as designated by the Contracting Officer for evaluation in accordance with provisions of 4.3.
17、2. The firet article sample shall consist of the following items in sample quantities as indicated. Part Description Female Hemisphere Male Hemisphere Disc, Tungsten Drawinp 9298784 9298785 9313567 pantity 50 50 30 * * See 6.4.a 4.3.2 Inspection to be performed. - See HIL-A48078 and Table I specifie
18、d herein. 4.3.3 Rejection. - See MIL-A-48078. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-G-b33LI3 13 7777706 0348736 1 d ti d E a (Y e cy. 4 9i (Y cr) e cy. cy. m (Y m 0 I I l I O u) c. O O O v) N rl G O rl b di O m m Ud U U U W 8,s wo W al
19、 alrl 8 8 a“ n P Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-b3393 33 W 99999Ob 0398737 3 MIL-0-63343 (AR) 4.4 pality conformance inspection. 4.4.1 Inspection lot formations. - Inepection loto rhall comply with the lot formation provisions
20、of XIL-A-48038. In addition, each blend of powder-mix shall aonetitutm B lot, 4.4.1.1 Traceability to sintered lots. - Tha aontraotor shall establish a system satisfactory to the proouring agency of maintaining traceability to sintered loto, 4.4.2 Examination. - See HIL-A-48078. a. Classification of
21、 Defects and Test Tables, rampling plans for major and minor defect6 shall be in accordance with MIL-STD-105. Sampling plans. - Unless otherwise specified in the 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-63343 33 a 77777Qb 0348738 5 c!
22、tI c I+ 8 rl a c al u u) z I3 o m rl P ? 9: cy . -P I j ( i Y U! Lj Y .: Y L a P P O00 o rlrlrl rl a Y m W u o al 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-63343 13 W 7777906 03Y717 7 = rl a 4 E 3 al rl ?i Fri . ? (v . 8 .I4 m E .4 5 Pr
23、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-633Y3 13 777770b 03Y720 3 r E E Y Y Y P 8 z Fo i3 ! u 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-b3393 13 7777706 03Y721 5 m MIL-G-6334
24、3 (AR) 4.4.3 Testinq. - Testing is described in the kirnt Article and Quality Conformance Inspection Tables. 4.4.4 Inspection equipment. - The inspection equipaent required to perform the examinations and testo poicribad herein is described in the “Paragraph Reference/IMpection Method“ column in the
25、 tables starting with Paragraph 4.4.2.1. The contractor shall submit for approval inspection oquipaent designs in accordance with the terme of the contract. Section 6 of MIL-A-48078 and 6.3 herein. 8ee 8 4.5 Methods of inspection. 4.5.1 Hardness. - The test shall be performed in accordance with ASTM
26、 E18. If any test specimen fails to meet the requirement, it shall be classed defective and the lbt shall be rejected. (Destructive test) . 4.5.2 Density. - The test shall be performed in accordance with ASTM B311 using methods and equipaent eatisfactory to the procuring agency. it shall be classed
27、defective. If any disc fails to meet the requirement, (Non-destructive test) . 4.5.3 Microstructure. - The test shall be performed on a If any test specimen fails to meet the test blank from a disc using any method satisfactory to the procuring agency. requirement, it shall be classed defective and
28、the lot shall be rejected. (Destructive test). 4.5.4 Mechanical properties. - Tensile test blanks conforming to ASTM E8, Figure 6, shall be prepared from - completed-discs. subjected to testing at a strain rate of .O2 per minute a6 specified in ACTM E8. ultimate tensile strength and elongation requi
29、rements, it shall be classed defective and the lot shall be rejected. (Destructive test) . These samples shall be free of scoring when If any test specimen fails to meet 4.5.5 Penetrant inspection. - Testing shall be performed as specified in MIL-1-6866, Table I. Test equipnent and procedures shall
30、be satisfactory to the procuring agency. any hemisphere fails to meet the requirement, it ehall be classed defective and removed from the lot. test) . If (Non-destructive -_ 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-b3343 13 W 99999Ob
31、0348722 7 W MIL-G-63343 (AR) 5. PACKAGING 5.1 Preservation and packaging. - Preservation and packaging shall be in accordance with beet comnercial practices. 5.2 Markinp. - Marking shall be in accordance with MIL-CTD-129. 6. NOTES 6.1 Intended use. - The components covered by this specification are
32、intended for use in the XM74 Grenade. 6.2 Ordering data. - See MIL-S-48078. 6.3 Submission of inspection equipment for design approval. - See MIL-A-48078. Submit designs as required to: Comander, US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND, AT“: mAR-QAA-I, Dover, New Jersey 07801. 6.4 Informat
33、ional tests. - The following shall be submitted for informational testing only to: Commander, US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND, ATTN: DRDAR-SCM-P: a. From First Article samples, 10 Discs, Dwg. 09313567 b. 2 Discs per production lot, Dwg. 119313567. c. Dwg. t9298784 or #9298785. One
34、Female or Male Hemisphere per production lot, d. manufacturers lot, Dwg. 119313626 (Blended powder with no wax) 200 grams Tungsten Powder Alloy per powder e. manufacturers lot, Dwg. X9313626 (Elemental or prealloyed powder) 100 grams each alloy ingredient per powder 11 Provided by IHSNot for ResaleN
35、o reproduction or networking permitted without license from IHS-,-,-x MIL-G-63393 13 m 7777706 0398723 7 = MIL-G-63343 (AR) 6.5 Drawin s. - Drawing6 listed in Bection 2 of thio DhWPMENT OoIMiND (ARRAMXIM) may also include drawings prepared by and identified as Edgewood Arsenal, Frankford Arsenal, Ro
36、ck Island Arsenal or Picatinny Arsenal drawings. Technical data originally prepared by theee activitieri is now under the cognizance of ARRADCOM. specificat + on under the heading US ARMY ARMAMENT RESEARCH AND Custodian: Preparing Activity Amy-AFt Amy-AR Project Number; . 1375-A244 *U. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
