ARMY MIL-P-70674 (2)-1991 PROJECTILE 155MM M864 METAL PARTS FOR BASE BURNER ASSEMBLY《M864式155 mm射弹底排组件用金属件》.pdf

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1、INCH-POUND MIL-P-70674 (AR) AMENDMENT 2 22 May 1991 SUPERSEDING AMENDMENT 1 3 April 1989 MILITARY SPECIFICATION PROJECTILE, 155MM: M864 METAL PARTS FOR BASE BURNER ASSEMBLY This Amendment forms a part of Military Specification MIL-P-70674 (AR), dated 4 April 1988, and is approved for use by the U.S.

2、 Army Armament Munitions and Chemical Command and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 Title: Change projectile nomenclature: From: I1XM864l1 To: If M8 6 4 II 1.1, Scope: Change projectile nomenclature: From: 1fXM86411 To: “M8 6 4 II * 2.1.1, Spec

3、ifications and Standards: Add the new military specification: “MIL-STD-4 14 - Sampling Procedure and Table for Inspection by Variables for Percent Def ectivel FSC 1320 1 of 18 m,sc N/A - DISTIRBUTION STATEMENT A. Approved for public release; distribution is unlimited. O Provided by IHSNot for Resale

4、No reproduction or networking permitted without license from IHS-,-,-, MIL-P-70674 (2) 13 9999906 0486583 7 /*; *h r* MIL-P-70674 (AR) AMEMDMENT 2 * 2.1.2, Other Government Documents, Drawings, and Publications: Add the new Product Drawing (ARDEC) : “9 3 8 1 13 0 - Base Burner Assembly“ PAGE 2 * 2.2

5、 Order of precedence: Change paragraph: From: “2.2 Order of precedence. In the event of a conflict between the text of this specification and the reference cited herein, (except for associated detail specifications, specification sheets, or MS standards), the text of this specification shall take pr

6、ecedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained .It To: “2.2 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified,

7、 the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARD INSTI

8、TUTE (ANSI) ANSI Zl.1 - Guide for Quality Control Charts ANSI 21.2 - Control Chart Method of Analyzing Data ANSI 21.3 - Control Chart Method of Controlling Quality During Production (Application for copies should be addressed to American National Standards Institute, 1430 Broadway, N.Y. , N.Y. 10018

9、.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70674 (AR) AMENDMENT 2 * 2., APPLICABLE DOCUMENTS: Add new subparagraph 2.3: “2.3 Order of precedence. In the event of a conflict between the text of this document and the reference cited her

10、ein the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.“ PAGE 3 fe 3.4.2, Process Control Dimensions: Change the last sentence: From: “Dimensions to be gaged for process control are t

11、o be assured to a -40% AQL.“ To : “Dimensions to be gaged for process control are to be assured to a 0.40 AQL.“ PAGE 6 TABLE I: Change item designation in title: From: “XM864“ To: . I M 8 6 4 I PAGE 7 4.4.2, Examination: Add new subparagraph 4 . 4.2 .c : II c. Statistical process control (SPC). For

12、those dimensions identified in the Classification of Defects Tables by referencing Appendix A, the contractor must utilize the principles of SPC as defined herein, ANSI 21.1, ANSI Z1.2, ANSI 21.3 and Appendix A. When the contractor satisfies the control conditions identified in Appendix A, acceptanc

13、e will then be by SPC. The SPC sample size and frequency of selection shall be determined by the contractor. If the SPC sample is to be less than four (4) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* MIL-P-70674 (2) 13 = 9997906 0486585 0 MIL-

14、P-70674 (AR) AMENDMENT 2 - I i items per hour, then the approval of the procuring agency must be sought prior to the elimination of sampling inspection for acceptance. The contractor may request to implement SPC acceptance for any other feature that is not annotated in the classification for defects

15、 by requesting approval of the procuring agency and by meeting all the conditions specified in this specification. When not accepting product by SPC acceptance of product for those features identified by referencing Appendix A will only be in accordance with MIL-STD-414 or MIL-STD-1235 plans CSP - 1

16、, -2,and -T using variable measurement capable gages . I PAGE 8 4.4.2.1, cup: Change paragraph by substituting new paragraph 4.4.2.1 (attached). PAGE 9 4.4 . 2.2, Re ta iner : Change paragraph by substituting new paragraph 4.4.2.2 (attached). PAGE 10 4.4.2.3, Plug: Change paragraph by substituting n

17、ew paragraph 4.4.2.3 (attached). PAGE 11 4.4.2.4, Housing, Igniter: Change paragraph by substituting new paragraph 4.4.2.4 (attached). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70674 (2) 13 m 9997906 0486586 2 m - _I 44 . rl ad a rlrl d

18、w ea ea e. 0. m4m4 mm MM mm lnln lnm -Y* ww ww mm mm mm . . *e e. a, W a, c -rl -4 W rci a, a, a ca ci -4 a, mm c cu O ai7 2 il0 $ a -4 c rn C (d E 2 u u O O a EI oi IA 3 oi d 0 O E 2 E E t ? 3 n 3 3 o . L r( . 2 .n in 3 U rg CL 8 X r( c m 43 3 3 c r( n O h ul r( E L O LL Y a 5 (8) Provided by IHSNo

19、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70674 (2) 13 m 9999906 0486587 4 m FiFiFiFiFi66 mmmmmmm wwwwwww mmrsimmmm mmmmmmm *biTJ+*w*Ql bi*bibi mmmmmmm mmmmmmrsi . . . o W a, c w a, u a, c O 2 -4 E ci Fi C a, ril u O -n E W m a, u d E-i a ro c -4 4J (o a,

20、 Fi u m d *ri -I rn c c, III a, rl rl m E CD -4 6 ma,mmmm mm a, m duwwuwwuuw a, tri w u 0, n X U 3 .C m LL O N E I v) m mm m bi bibi w m mm m . . m w m . II) a, rl O c ci u O a w O 3 O u a, rld wo WC h *FI wo O E u0 OW cic aia 52 .ri a II) a, rl O c ci u O a w O 3 O u Od cio cic O sa, c wo O E NO OW

21、 cic a EU wu a s; .ri u au ci (uci LI ci II) a, tri u w rl W c O u cu II) u wu oci a, CE ow -4 -4 UW -4 II) ow a+ ro cuc 3-4 u w W a, 24 u O rl Q u O a, ci a, d a E O u c a, rl -4 c h c 4 o a, w -4 d W oa, c rBw a, a, -4 w cid rn-4 uocirn oc !3ci o7 o wuci 5 c c: O ci O d III w O c O -4 ci .ri II) a

22、 a, 3 u B 2 -j a. If any point goes outside the Xbar or R chart control limits. 16 (16) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70674 (AR) AMENDMENT 2 APPENDIX A b. If 9 points in a row are either continually above or continually below

23、the Xdouble bar. C. If 6 points in a row are either continually increasing or continually decreasing on the Xbar chart. d. If 6 points in a row are increasing on the range chart. e. If any individual sample, Xi, falls outside of the . specification limits. 3GY.1.2.1 Process capability review. At lea

24、st once a inonth the contractor will review his process data and establish updated control limits. 30.1.3 Mandatory return to sampling acceptance. Acceptance by SPC will be discontinued in accordance with the following paragraphs. In any case, control charting will be continued. When this occurs, th

25、e contractor may reintroduce acceptance by SPC by repeating the steps outlined in paragraph 30.1.1. - 30.1.3.1 Out of control incidents. If for any individual process, an out of control incident is identified 3 times within 5 analysis indicated that nonconforming product may have been manufactured,

26、the contractor will return to acceptance by sampling the per t inent feature. consecutive shifts or 5 times within 30 consecutive shifts; and the 30.1.3.2 Process interruption. If the process is interrupted for more than 10 calendar days, the contractor will return to acceptance by sampling for that

27、 pertinent feature. 30.1.3.3 Loss of control. If either by testing or data review it is determined that the Cpk is no longer at the required minimum of 1.3, the contractor will return to acceptance by sampling for the per t inent fea tur e. 30.1.4 Records. The contractor will maintain all records de

28、aling with SPC in his files for a mininum of 5 years after completion of the contract. 30.2 Government auditing. In order to verify the state of control of the process, it is recommended that a Government representative select samples at unscheduled times. The sample mean and range should then be co

29、mpared to the data being recorded by the contractor. If the data is not consistent with the reported data, corrective action should be sought and, if necessary, screening of material should be required. 17 (17) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

30、 IHS-,-,-MIL-P-70b74 (2) 13 m 77779Ob 0486577 O m MIL-P-70674 (AR) AMENDMENT 2 The margins of this amendment are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the previous amendment were made. This was done as a convenience only, and the Go

31、vernment 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 I., last previous amendment. Custodian: Army-AR Preparing activity: Army-AR (Project 1320-AC02) 18 (18) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-