1、 MIL-C-48b70 (41 13 W 999990b 0533773 7 W MIL-C-48670 (AR) AMENDMENT 4 29 MAY 1992 SUPERSEDING AMENDMENT 3 23 FEBRUARY 1989 MILITARY SPECIFICATION CHARGE ASSEMBLY FOR M207E5 OR M207E6 WARHEADS INERT PARTS, FOR Th,s Amendment forms a part of Military Specification MIL-W-48670 (AR) dated 21 March 1986
2、 and is approved for use by the , U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. In the specification wherever 11M207E5tt appears add Ilor M207E6. II PAGE 1 2.1.1, specifications, Military: Add the following:
3、 “MIL-C-48659 - Charge Assembly for M207E5 Warhead Loading, Assembling and Packingtt PAGE 2 a 2.2, Add: “ASTM E 348 Microhardness of Materialsll PAGE 3 3.5.1, Delete paragraph in its entirety and substitute the following: “3.5.1 Process documentation. Concurrent with submission of the First Article
4、Sample (see paragraph 4.3) the contractor shall submit a written description of the manufacturing process used for the body and liner, description shall include intermediate steps in press operations and specifics of the heat treatment process used together with the means by which the process can be
5、 verified in production. The method of verification shall be reviewed by and must be acceptable to the Government. process and process controls shall be prepared in accordance As a minimum, the process The contractors written plan of 1 of 16 APSC N/A FSC 1336 DISTAIBUOl -_ STATEKENT A. 0 Approved fo
6、r public release; distribution is unlimited Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48670 (AR) Amendment 4 with Data Item Description DI-P-1604 (Tailored). Proposed changes to the process which produced the accepted First Article sample
7、 shall be submitted to the Government prior to actual implementation of the change. A new First Article Sample may be required for each proposed process change as determined by the Government. II PAGE 4. 4.3.1, After first sentence, add the following: IlThe first article sample shall be manufactured
8、 using the same materials, equipment, processes, and procedures as will be used in regular production. All parts and materials, including packing shall be the same as used in regular production and shall be obtained from the same source of supply. Sample of portion thereof, as directed by the procur
9、ing agency shall also be submitted whenever there is a lapse in production for a period in excess of 90 days or whenever a change occurs in manufacturing processes, materials used, drawings, specifications or source of supply, such as to significantly affect product uniformity or quality as determin
10、ed by the contracting officer (See 3.5.1) .I1 A first Article 4.3.1 , Liner quantity: Delete ii20“ and substitute “30. Plate quantity: Delete 1120“ and substitute “10. II Pad, compression quantity: Delete Ii201 and substitute “10. II 4.3.2, Delete paragraph in its entirety and add the following: “4.
11、3.2 Testinq 4.3.2.1 Startinq material. Sample material of the starting stock for the liner, shall be selected prior to fabrication and used for hardness, chemical composition and grain size tests. 4.3.2.2 Finished machine liners. Ten finished machine liners from a single annealed batch shall be used
12、 for testing for grain size and hardness. 4 4.3.2.3 Static penetration. Twenty finished machined liners will be delivered to a designated Government facility for loading and testing in accordance w.ith 4.4.3.2. This test is for information only. II 2 Provided by IHSNot for ResaleNo reproduction or n
13、etworking permitted without license from IHS-,-,- Pt MIL-C-48670 (4) 13 W 9977706 0533775 O W MIL-C-48670 (AR) Amendment 4 0 4.3.5 Delete paragraph in its entirety and substitute the following: “4.3.5 Completion. Upon completion of; the irst article testing, sample disposition procedure shall be in
14、accordance with 6.5.“ PAGE -5 Delete Note 1 in its entirety and substitute the following: “1. Upon completion of Examination of Defects select ten (10) of the twenty (20) liners for hardness of the finished liner. These same liners shall then be used for grain size of the finished liner. II Table I
15、Liner: Examination of defects, delete ii2011 and substitute ii3011 Liner: Add ifPenetration (see note 2) 20 3.1 4.4.3.2“ Plate: examination of defects, delete ii2011 and substitute iilO1l Pad Compression: examination of defects, delete ii2011 and add Note: Ii2. For informational purposes only. II su
16、bs t i tut e II 1 O PAGE 6 4.4.1, Delete the first sentence in its entirety and substitute the following: “Inspection lots for the liner, body, plate, PIC, and compression pad shall be identified with a lot number in accordance with provisions of MIL-A-48078 and MIL-STD-1168. The contractor shall re
17、quest the initial lot interfix number from the government procuring activity. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,MIL-C-48670 (4) 13 W 9999906 O533776 2 MIL-C-48670 (AR) AMENDMENT 4 PAGE 7 -ri tci ai a a, d 2 k a, c, a, E Id h . z a -4 5
18、 d -0 e rf (dl 9 (13) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48670 (4) 13 = 9999906 0533782 8 = u pi 3r a O H 4 a oO 00 OW 8 oQ oO oo OW OP 000000 mmtn *+Zrd(rP* www O00 00000 .*.e* a* h a aJ ci u-i a, 5 *Il Q) E; O 2 k- a. ci m au, a
19、2 k c: iu .ri 3 O k a! aj m k u , 10 (11) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-C-48670 (4) 13 7777706 0533783 T I c O .d v) m a, k O u ro a pi E . N NNW m mmm . * ov, O cJ O . OP op OP mmm www O00 -.o h Ll a, u “I id 11 (12) Provided
20、 by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48670 (4) 13 9999906 0533784 L I , MIL-C-48670 (AR) AMENDMENT 4 4.4.3.1.1.b, Delete the paragraph in its entirety and substitute with the following: IlIf five consecutive annealed batches meet the heat tr
21、eatment requirements reduce the sampling to a minimum of one liner per weeks production of annealed batches or one liner from the last annealed batch producing a total of no more than 5000 pieces whichever occurs first. Test results must be submitted to and accepted by the government.“ 4.4.3.2, Add
22、the following: “4.4.3.2 Static penetration test. Sampling shall be in accordance with the following: 1. Ten designated procedures 4.3.1, 2. Stat 10) tip charge assemblies will be loaded at a government facility in accordance with the assembly specified in MIL-C-48659 using liners provided in para. c
23、 penetration testinq of these assemblies will be conducted at a designated government facility using the test methods and target materials as specified in MIL-C-48659. requirements of MIL-C-48659 the remaining liners will be held for future reference. 3. If penetration results of the 10 samples meet
24、s the 4. If any sample from step 4 fails the specified penetration requirement, the remaining 10 liners will be loaded and step 2 repeated. 5. All penetration results shall be submitted in accordance with DI-T-5247 (Tailored) (see 6.4).“ PAGE 14 4.6, Delete the paragraph in its entirety and substitu
25、te the following: “4.6 Metallurgical and chemical tests. the following tests shall be performed using equipment and procedures prescribed by the cited ASTM.“ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48b70 (4) 13 = 999990b 0533785 3 = -MI
26、L-C-48670 (AR) Amendment 4 4.6.1, include the following at the end of the first sentence: Ilin accordance with ASTM B 248.“ 4.6.2, include the following at the end of the first sentence: Ilin accordance with ASTM b 248.“ 4.6.3, include the following at the end of the first sentence: Ilin accordance
27、with ASTM B248.I * 4.6.4, Delete paragraph in its entirety and substitute the . following: “4.6.4 Hardness of finished liner. The sample liners shall be sectioned longitudinally into four equal parts and marked for exact location relative to the finished liner. The hardness of the finished liner sha
28、ll be determined in accordance with ASTM-E- 384. The microhardness measurements shall be taken at the following locations: 0.10 inch from the base and every 0.7 inch thereafter in a longitudinal direction. For each location three (3) readings shall be taken, for a total of nine (9) readings on each
29、section (See Fig, 1). A total of thirty-six (36) readings shall be taken for the finished liner. The hardness readings shall be identified as t their location on the liner. The recorded readings shall analyzed for variations in hardness in both the longitudinal and axial directions, . If any of the
30、sample liners do not meet the hardness requirements specified on the drawing, the liner heat treat batch represented by the samples shall be rejected. The hardness test data shall be submitted in accordance with DI-T-5247 (Tailored) (See 6.4). This is a destructive test. II PAGE 15 4.6.5, Delete the
31、 first and second sentence and substitute the following: IITwo quarter test sections, 90 degrees apart, from 4.6.4 shall be utilized for taking grain size. Examination shall be made at the same three locations which were hardness tested (See Figure 1) .Il 6.3, At end of paragraph delete IIDover, New
32、 Jersey 07801-500111 and substitute “Picatinny Arsenal, N.J. 07806-5000.11 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48670 (4) 13 9979906 0533786 5 D MIL-C-48670 (AR) AMENDMENT 4 6.4, Delete and substitute as follows: “6.4 Data require
33、ments - Deliverable data required by the specification is cited in the following paragraphs: Paragraph Data Requirement Applicable DID 3.3 Ammunition Data DI-L-1410 3.5.1 & 3.5.2 Manufacturing Methods DI-P-16 04 Report (Tailored) (See note 1) 4.4.3.2, 4.6.1, Test Report 4.6.2, 4.6.3, 4.6.4, 4.6.5 DI
34、-T-5247 (Tailored) The above data items shall be delivered to the following: Commander U. S. Army Armament Research, Development and Engineering Center Picatinny Arsenal, N.J. 07806-5000 ATTN: SMCAR-QAT-B Note 1: One copy shall also be sent to Commander, U.S. Army Armament Research, Development and
35、Engineering Center, ATTN: SMCAR-CCH-A, Picatinny Arsenal, NJ 07806-5000.“ PAGE 15a Add new figure included. PAGE 17 6.5, Add new paragraph as follows: “6.5, Add new paragraph as follows: “6.5 Submission of test hardware. Upon completion of First Article Testing, all samples shall be sent to Commande
36、r, ARDEC, ATTN: SMCAR-CCH-A, Picatinny Arsenal, NJ 07806-5000.“ 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r! O Y O 3 8 e s t 3. MIL-C-48b70 (4) 13 999990b 0533787 7 MIL-C-48670 (AR) Amendment 4 e Provided by IHSNot for ResaleNo reproduction
37、or networking permitted without license from IHS-,-,-MIL-C-Ll8670 (4) 13 I 9999906 0533788 9 I MIL-C-48670 (AR) AMENDMENT 4 The margins of this amendment are marked with an asterisk or vertical lines to indicate where changes (additions, modifications, corrections, deletions) from the previous amend
38、ment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. custodian: Army-AR. 16 Preparing activity: Army-AR (Project 1336-A631 ) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
