ARMY MIL-W-48757 (5)-1988 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、MIL-W-48757 (5) 13 7797706 0324328 7 1-1 MIL-W-48757 (AR) AMENDMENT 5 16 DECEMBER 1988 SUPERSEDING AMENDMENT 4 1 July 1983 -* MILITARY SPECIFICATION WARHEAD SECTION, GM, HE, XM251 SPARE PARTS FOR This Amendment forms a part of Military Specification MIL-W-4-48757 (PA) use within the US Army Armament

2、, Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. dated 28 March 1975, and is approved for PAGE 1 Title: Change to read “WARHEAD SECTIONS, GM, HE: M251 AND M251A1 SPARE PARTS FOR“. 1.1 Change to read: “This specification covers s

3、pare parts for Warhead Sections, GM, HE: M251 and M251A1.“ 2.1 SPECIFICATION: Add the following: “MIL-B-45887 - Bolt, Tee FEDERAL QQ-2-325 - Zinc Plating (Electrodeposited) QQ-P-461 - Plating, Cadmium (Electrodeposited)“. AMSC NIA FSC1340 DISTRIBUTION STATEMENT A. Approved for public release; distri

4、bution is unlimited. 1 of -16 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-48757 (AR) AMENDMENT 5 4.4.3 Delete in its entirety and substitute the following: “4.4.3 Testing. .- 4.4.3.1 Salt spray (see QQ-2-325 or QQ-P-416 as applicable). Four

5、 (4) of each of the following parts from each part plating lot shall be subjected to the salt spray test: and .9208775. If any part from any part plating 1ot.fails to comply with the applicable specification requirement, the parts from that plating lot shall be rejected. This test will not be perfor

6、med on a part plating lot which has been previously tested in first article (see 4.3.1)“ MS27183-7, 8831277, 8831279, 8833389, 9208238, 9208320, 9208681, 9208690, 9208708, 9208758, 9208759, 9283989, 8836202, 9208303, . *- PAGE 38 =. Add new paragraph as follows: “4.5.9 Salt spray. The test shall be

7、conducted for 96 hours with a 5 percent salt solution in accordance with ASTM-B-117-73. This is a destructive test. Parts so tested shall not be returned to the lot.“ Add new paragraph as follows: “4.5.10 Dimensional control of standard parts. In place of- the normal sampling associated with the Cla

8、ssification of Defects, and with the approval of the Contracting Officer, a sample of at least ten (10) parts shall be dimensionally inspected to qualify the tool used in the stamping process for use in production. In addition, a random sample of five (5) parts shall be selected from the last portio

9、n of each hours production for dimensional inspection as a control of the tool during production. If any defective parts are found during qualification of the tool, the tool producing the defective part shall not be used in production. If any defective parts are found when inspection is performed fo

10、r control of the tool, the tool producing th defective part shall be removed from production. Further, that portion of production since the last tool control check shall be returned to the contractor for corrective action. All tools removed from production because of some fault, may, after reworking

11、, be returned to production providing they pass the qualification test above. The contractor may request a change of inspection frequency providing he presents objective evidence to the Contracting Officer to substantiate the request.“ 15 Provided by IHSNot for ResaleNo reproduction or networking pe

12、rmitted without license from IHS-,-,-MIL-W-48757 (AR) AMENDMENT 5 5.1.1, Line 2: After “external wrenching nut“, add: “screw, telescope tube“. Line 9, Add: “The fuze gasket; latch assembly: and seal, metallic lead and wire: shall be preserved and packaged in accordance with Dwg. 8848472-4.“ 5.2.1, L

13、ine 2: After “external wrenching nut“, add: “screw, telescope tube: gasket, fuze; latch assembly: seal, metallic lead and wire;“. 5.3, Line 2: After “8808932“, add: “8848472“. 6.1, Line 2: Change “. XM251.“ to.M251 and M251A1“. PAGE 39 6.3, Line 3: Change “. ATTN: DRDAR-QAR-I, US Army Armament Resea

14、rch and Development Command . “ to “ .AMSMC-QAR-I (D) , US Army Armament, Munitions and Chemical Command . n 6.4 Delete in its entirety. 6.5 Delete in its entirety. The margins of this amendment are marked with an asterisk or vertical lines to indicate where changes (additions, modifications, correc

15、tions, deletions) from the previous amendment 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 his document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. Custodian: Army-AR i Preparing activity: (Project 13 40-A6 85) Army-AR . - -_ I 16 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-