1、 MIL-DTL-50911B 7 January 2011 SUPERCEDING MIL-P-50911A (AR) 19 March 1983 DETAIL SPECIFICATION PRIMING ASSEMBLY FOR DEMOLITION CHARGE ASSEMBLY: M183 PARTS FOR AND LOADING, ASSEMBLING AND PACKING This specification is approved for use by all Departments and Agencies of the Department of Defense. 1.
2、SCOPE 1.1 Scope. This specification prescribes the requirements and identifies the verification methods for the Priming Assembly for Demolition Charge Assembly: M183 Parts For and Loading, Assembling and Packing. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified
3、 in sections 3 or 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they
4、must meet all specified requirements of documents cited in sections 3 or 4 of this specification, whether or not they are listed. AMSC N/A FSC 1375 Distribution Statement A. Approved for public release; distribution is unlimited. INCH-POUND Comments, suggestions, or questions on this document should
5、 be addressed to: Commander, U.S. Army ARDEC, ATTN: RDAR-QES-E, Picatinny Arsenal, New Jersey 07806-5000 or e-mailed to ardecstdznconus.army.mil. Since contact information can change, you may want to verify the currency of this information using ASSIST Online database at https:/assist.daps.dla.mil.
6、Reactive after 7 January 2011 and may be use for new design and existing design and acquisition Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50911B 2 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following s
7、pecifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-17124 - Cord, Detonating DEPARTMENT OF DEFENSE
8、STANDARDS MIL-STD-1916 - DOD Preferred Methods for Acceptance of Product MIL-STD-1168 - Ammunition Lot Numbering and Ammunition Data Card (Copies of these documents are available online at https:/assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, P
9、hiladelphia, PA 19111-5094.) 2.2.2 Other Government documents, drawings and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the
10、 solicitation or contract. US ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) DRAWINGS 8861109 - Clip, Cord, Detonating, M1 8861119 - Booster, Assembly 8861120 - Cup Booster 8861134 - Fuse, Detonating 9219074 - Priming Assembly (Copies of these drawings are available from U.S. Arm
11、y ARDEC, ATTN: RDAR-EIS-PE, Picatinny, NJ 07806-5000, or email pica.drawing.requestconus.army.mil.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the s
12、olicitation or contract. ASTM INTERNATIONAL ASTM A36/A36M - Standard Specification for Carbon Structural Steel (Copies of these documents are available from http:/www.astm.org or ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) Provided by IHSNot for ResaleNo reproductio
13、n or networking permitted without license from IHS-,-,-MIL-DTL-50911B 3 2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited, the text of this document takes precedence. Nothing in this docume
14、nt, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample of the Priming Assembly shall be subjected to first article inspection in accordance with 4.3. 3.2 Conformance inspection. A sa
15、mple of the Priming Assembly shall be subjected to conformance inspection in accordance with 4.4. 3.3 Priming assembly. The priming assembly shall be in accordance with drawing 9219074. 3.4 Detonating fuse. Each lot of the detonating fuse shall be in accordance with MIL-DTL-17124. 3.5 Weight of char
16、ge. The weight of the booster charge shall be in accordance with drawing 8861119. 3.6 Output. Both boosters of one individual priming assembly shall initiate the M112 demolition charge by resulting in cutting through or indenting steel witness plates. 3.7 Ammunition lot numbering. Ammunition lot num
17、bers shall be assigned in accordance with MIL-STD-1168. 3.8 Workmanship. Al1 parts and assemblies shall be free of burrs, sharp edges, cracks, dirt, and other foreign matter. The booster cups shall not be cracked, bulged, scratched or deformed. Charges shall be free of breaks, cracks and other defec
18、ts. Colors shall be uniform. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the cleaning agent. All required markings shall be neat and sharply defined. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
19、-,-MIL-DTL-50911B 4 4. VERIFICATION TABLE I. Requirement/Verification cross reference matrix Methods of verification Classes of verification 1 Analysis A First Article 2 Demonstration B Conformance 3 Examination 4 Test Section 3 Requirements Description Verification Method Verification Class Section
20、 4 Verification Method 1 2 3 4 A B 3.1 First article X X X 4.3 3.2 Conformance inspection X X X 4.4 3.3 Priming assembly X X X 4.4.2.1 through 4.4.2.4 3.4 Detonating fuse X X X X X X 4.4.2.4 3.5 Weight of charge X X X 4.4.2.3, 4.5.2 3.6 Output X X X 4.5.3 3.7 Ammunition lot number X X X 4.5.4 3.8 Wo
21、rkmanship X X X 4.4.2.1 through 4.4.2.4, 4.5.5 4.1 Classification of inspection. The inspection requirements specified herein are classified as follows: a. First article inspection (see paragraph 4.3) b. Conformance inspection (see paragraph 4.4) 4.2 Inspection conditions. Unless otherwise specified
22、, all inspection shall be performed in accordance with the test conditions specified in 4.5. 4.3 First article. When specified, a sample of the priming assembly and subcomponents shall be subjected to first article inspection in accordance with Table II. 4.3.1 First article quantity. The first artic
23、le sample shall consist of the following items in sample quantities as indicated in Table II. 4.3.2 First article rejection. If any assembly, component or test specimen fails to comply with requirements, the first article sample shall be rejected (see 6.7). Provided by IHSNot for ResaleNo reproducti
24、on or networking permitted without license from IHS-,-,-MIL-DTL-50911B 5 TABLE II. First article tests and inspection. Examination or Test Drawing Number Sample Size Requirement Paragraph Verification M1 detonating cord clip Examination of Defects 8861109 10 3.3 4.4.2.1 Booster cup Examination of De
25、fects 8861120 10 3.3 4.4.2.2 Booster assembly Examination of Defects Weight of Charge 8861119 10 10 3.3 3.5 4.4.2.3 4.5.2 Priming assembly Examination of Defects Output 9219074 10 3 3.3 3.6 4.4.2.4 4.5.3 4.4 Conformance inspection. 4.4.1 Lot formation. Lot formation shall be in accordance with MIL-S
26、TD-1916. In addition, each inspection lot of priming assemblies shall be produced with components complying with the following constraints: a. Detonating fuse from not more than one lot interfix number from one manufacturer. b. Comp A5 from not more than one lot interfix number from one manufacturer
27、. c. Cup boosters from not more than one lot interfix number from one manufacturer. d. Clip cords from not more than one lot interfix number from one manufacturer. 4.4.2 Classification of characteristics. a. Sampling requirements. Inspection sampling requirements for critical, major and minor charac
28、teristics are defined in MIL-STD-1916. Unless specified otherwise, Inspection Level VII in addition to 100% inspection shall be used for all characteristics defined as Critical, Inspection Level IV shall be used for all characteristics defined as Majors and Inspection Level II for all Minor characte
29、ristics. b. Inspection. Conformance inspection shall be performed in accordance with section 4.4.2.1 through 4.4.2.5. For all conformance inspections the same sample specimen may be used for all non-destructive examinations or tests. Provided by IHSNot for ResaleNo reproduction or networking permitt
30、ed without license from IHS-,-,-MIL-DTL-50911B 6 4.4.2.1 M1 detonating cord clip Drawing Number 8861109 Next Higher Assembly 9219074 Classification Examination or Test Conformance Criteria Requirement Paragraph Inspection Method / Reference Critical None defined Major None defined Minor 201 Workmans
31、hip Level II 3.8 Visual Visual 4.4.2.2 Booster cup Drawing Number 8861120 Next Higher Assembly 8861119 Classification Examination or Test Conformance Criteria Requirement Paragraph Inspection Method / Reference Critical None defined Major 101 Cup split or cracked Minor 201 Length Level II 3.3 Gage 2
32、02 Thickness through bottom, min Level II 3.3 Gage 203 Inner diameter Level II 3.3 Gage 204 Workmanship Level II 3.8 Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50911B 7 4.4.2.3 Booster assembly Drawing Number 8861119 Next Higher A
33、ssembly 9219074 Classification Examination or Test Conformance Criteria Requirement Paragraph Inspection Method / Reference Critical 1 Booster cups split or cracked, exposed charge, evidence of explosive leakage 100% 3.8 Visual Major 101 Charge missing Level IV 3.3 Gage 102 Outside diameter, max Lev
34、el IV 3.3 Gage 103 Depth to charge, min Level IV 3.3 Gage 104 Weight of charge 1/ 3.5 4.5.2 Minor 201 Marking missing, incorrect, or identifiable Level II 3.3 Visual 202 Workmanship Level II 3.8 Visual Note: 1/ Total of 32 samples. 4.4.2.4 Priming assembly Drawing Number 9219074 Next Higher Assembly
35、 Classification Examination or Test Conformance Criteria Requirement Paragraph Inspection Method Reference Critical 1 Booster cups split or cracked, exposed charge, evidence of explosive leakage 100% 3.8 Visual Major 101 Length, max Level IV 3.3 Gage 102 Double crimp missing or incorrect Level IV 3.
36、3 Visual 103 Booster assemblies (2) improperly assembled or missing Level IV 3.3 Visual 104 Detonating cord clips (2) improperly assembled, damaged, missing, or not secure to detonating fuse Level IV 3.3 Visual 105 Output 1/ 3.6 4.5.3 Minor 201 Workmanship Level II 3.8 Visual Note: 1/ Total of 3 sam
37、ples. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50911B 8 4.5. Methods of inspection. 4.5.1 Detonating fuse. The detonating fuse lot shall be verified in accordance with MIL-DTL-17124. 4.5.2 Weight of charge. Weigh each of the marked emp
38、ty booster cups to the nearest 0.1 milligram. Calculate the weights and return the sample booster cups to the regular production lot. After loading of the booster cups, the loaded sample booster cups shall be weighed to the nearest 0.1 milligram. Calculate the weight of the booster charge as follows
39、: Weight = B - A Where: A = weight of empty booster cup B = weight of loaded booster cup 4.5.3 Output. A sample of three (3) M112 demolition charges shall be randomly selected from each accepted M112 lot after the charges have been packaged in charge containers. A total of three (3) priming assembli
40、es shall be used to test six (6) booster assemblies. The M112 demolition charge assembly shall be tested against a steel witness plate to verify effectiveness of the priming assembly. 4.5.3.1 Priming assembly setup. The priming assembly shall be stretched into a straight line with the clip cord plac
41、ed equidistant between the two booster assemblies. A blasting cap capable of initiating the detonating fuse shall be attached and secured to the clip cord. For each priming assembly there are two (2) booster assemblies on each end that shall be tested. Two (2) individual witness plates shall be used
42、 for each of the two (2) booster assemblies. Each booster assembly shall be primed and set up in accordance with section 4.5.3.2. 4.5.3.2 Demolition charge setup. The M112 demolition charge shall be cut approximately in half. A steel witness plate of ASTM A36 steel with dimensions of 1.0 x 10.0 x 10
43、.0 inches (nominal) shall be used to verify M112 detonation. The charge shall be applied to the steel witness plate and primed at the center using the booster assembly end of the priming assembly (part no. 9219074). The primed M112 block shall be secured with tape to ensure intimate contact between
44、the charge and the witness plate (see Figure 1. Test Set Up). The detonating fuse shall be secured with tape to the witness plate. The blasting cap shall be initiated and both booster assemblies shall completely initiate each block M112 demolition charge. 4.5.3.2.1 Rejection. Failure of only one of
45、the block M112 demolition charge to cut through or indent the steel witness plate shall result in lot rejection of the priming assembly. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50911B 9 Figure 1. Test Setup. 4.5.4 Ammunition lot numbe
46、ring. Visually verify that an ammunition lot number has been applied to each lot as described in MIL-STD-1168. 4.5.5 Workmanship. Visually verify that all parts and assemblies meet requirements of 3.8. 5. PACKAGING 5.1 Packaging instruction. For acquisition purposes, the packaging requirements shall
47、 be as specified in the contract or order (see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory C
48、ontrol Points packaging activities within the Military Service or Defense Agency, or within the military services system commands. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsi
49、ble packaging activity. 6. NOTES (This section contains information of a general or explanatory nature that may be helpful but is not mandatory) Half of M112 block Booster Assembly Double-sided tape of M112 Duct tape Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
