ARMY MIL-DTL-45468 F-2012 CAP BLASTING ELECTRIC - M6 PARTS FOR AND LOADING ASSEMBLING AND PACKING.pdf

1、 AMSC N/A FSC 1375 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. MIL-DTL-45468F(AR) 29 August 2012 SUPERSEDING MIL-C-45468E(AR) 13 January 1986 DETAIL SPECIFICATION CAP, BLASTING: ELECTRIC - M6 PARTS FOR, AND LOADING, ASSEMBLING AND PACKING This specification is a

2、pproved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the parts for, and loading, assembling and packing for one type of blasting cap designated as CAP, BLASTING: electric, M6. 2. APPLICABLE DOCUMENTS 2.1 General. The documents li

3、sted in this section are specified in sections 3 and 4 of this specification. This section does not include documents 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 u

4、sers are cautioned that they must meet all requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards and handbooks form a part of this docum

5、ent to the extent specified herein. Unless otherwise specified, the issues of these documents are those specified in the solicitation or contract. Comments, suggestions, or questions on this document should be addressed to (Commander ARDEC, ATTN: Standardization RDAR-QES-E, Picatinny Arsenal, New Je

6、rsey 07806-5000) or emailed to ardecstdznconus.army.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.dla.mil INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted wit

7、hout license from IHS-,-,-MIL-DTL-45468F(AR) 2 DEPARTMENT OF DEFENSE SPECIFICATIONS A-A-208 - Ink, Marking, Stencil, Opaque (Porous and Non-Porous Surfaces) A-A-59383 - Marking Media, Opaque (Porous and Non-Porous Surfaces) DEPARTMENT OF DEFENSE STANDARDS MIL-STD-650 - Explosive: Sampling, Inspectio

8、n and Testing MIL-STD-1168 - Ammunition Lot Numbering and Ammunition Data Card MIL-STD-1916 - DOD Preferred Method for Acceptance of Product (Copies of these documents are available online at https:/assist.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue Bldg.

9、 4D, Philadelphia, PA 19111-5-94.) 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 i

10、n the solicitation (see 6.2). Armament Research, Development and Engineering Center (ARDEC) DRAWINGS 8830953 - Cup 8830954 - Spool 8830971 - Plug Assembly (Rubber) 8830972 - Cap, Blasting, Electric, M6 Assembly 12913870 - Packing and Marking, For Box, Wirebound For Cap, Blasting, Electric, M6 129138

11、71 - Packing and Marking, For M19A1 Ammunition Box For Cap, Blasting, Electric, M6 (Application for copies of these drawings may be requested through email to Pica.Drawing.Requestconus.army.mil or from U.S. Army ARDEC, ATTN: RDAR-EIS-PE, Picatinny, NJ 07806-5000.) DEFENSE AMMUNITION CENTER DRAWINGS

12、19-48-4116/121Q - Unitization Procedures for Boxed Ammunition and Components on 4-way Entry Pallets (Copies of these drawings may be ordered online at https:/www3.dac.army.mil/DET/order/draworder.html or from Defense Ammunition Center, 1 Provided by IHSNot for ResaleNo reproduction or networking per

13、mitted without license from IHS-,-,-MIL-DTL-45468F(AR) 3 C Tree Road, Bldg. 35, McAlester, OK 74501.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. ASTM INTERNATIONAL ASTM B 749 - Standard Specification for Lead and Alloy Strip,

14、 Sheet, and Plate Products (Copies of ASTM standards may be ordered online at http:/www.astm.org/ or from ASTM International, 100 Barr Harbor Drive, Conshohocken, PA 19428-2959.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, th

15、e text of this document takes precedence. Nothing in this document, however, supercedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Required inspections. 3.1.1 First article. When specified, a sample shall be subjected to first article inspectio

16、n in accordance with 4.2. 3.1.2 Conformance. A sample shall be subjected to conformance inspection in accordance with 4.3. 3.2 Materials and parts. Materials and parts shall be in accordance with the drawings and specifications cited. 3.3 Assemblies. The assemblies shall comply with all requirements

17、 specified on 8830971 and 8830972. 3.4 Moisture content of the lead azide. The moisture content of the lead azide at the loading station, at the time of loading the blasting cap assemblies, shall be not greater than 0.50 percent. 3.5 Pull test of the lead wires. Lead wires shall not be separated fro

18、m the blasting cap when a pull force of 5 pounds (lbf) is exerted on each individual lead wire while the blasting cap is held stationary. 3.6 Resistance of bridge wire and wire leads. Resistance of blasting cap, including bridge wire and wire leads, shall be not greater than 1.76 ohms and not less t

19、han 1.44 ohms. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45468F(AR) 4 3.7 No fire (critical). The M6 cap shall not be initiated by an electric current of not less than 0.20 Ampere and not greater than 0.21 Ampere for the duration of 5 s

20、econds. 3.8 Waterproofness. The M6 blasting cap shall function after submersion in water for not less than 4 hours at not less than 65F and not greater than 75F when the water is under a pressure of not less than 50 pounds per square inch (gauge). 3.9 Functioning. The M6 blasting cap shall be capabl

21、e of initiating high-order when tested in the following methods. 3.9.1 Ampere initiation of single cap. The M6 blasting cap shall be initiated when an electric DC current of not greater than 0.45 Ampere is applied to the lead wires for not greater than 50 milliseconds. 3.9.2 Milliwatt-second initiat

22、ion of single cap. The M6 blasting cap shall be initiated when electrical energy of not greater than 18.3 milliwatt-seconds and not less than 16.3 milliwatt-seconds is applied to the lead wires for not less than 10 milliseconds and not greater than 24 milliseconds. 3.9.3 Fire conditions for fifty (5

23、0) caps in series. Fifty (50) M6 blasting caps connected in series through the full lengths of their leads shall be initiated by the application of a current of not less than 1.40 and not greater than 1.60 Ampere for not less than 1.5 and not greater than 1.6 milliseconds. 3.9.4 Fire conditions for

24、four (4) caps in series. Four (4) M6 blasting caps connected in series through the full lengths of their leads shall be initiated by the application of electrical energy of not more than 0.3 Joule for not greater than 100 milliseconds. 3.10 Marking performance and durability. Performance and durabil

25、ity of marking inks shall meet the requirements of the inks respective specification. 3.11 Workmanship. All parts and assemblies shall be clean and free of chips, burrs, sharp edges, dirt, grease, rust, corrosion products, and other defects and foreign matter which would affect their serviceability.

26、 The cleaning method used shall not be injurious to any part or assembly nor shall the cleaning agent contaminate them. Exterior surface coatings shall be continuous. All required markings shall be neat and sharply defined. Required packing shall be dry.Provided by IHSNot for ResaleNo reproduction o

27、r networking permitted without license from IHS-,-,-MIL-DTL-45468F(AR) 5 4. VERIFICATION Table I. Requirement/verification cross reference matrix. Method of Verification Classes of Verification 1- Analysis 2- Demonstration 3- Examination 4- Test A - First Article B - Conformance Section 3 Requiremen

28、ts Description Verification Method Verification Class Section 4 1 2 3 4 A B 3.1.1 First article X X X X 4.2 3.1.2 Conformance inspection X X X X 4.3 3.2 Materials and parts X X X X 4.3.2 3.3 Assemblies X X X 4.3.2 3.4 Moisture content of the lead azide X X X 4.3.3 3.5 Pull test of the lead wires X X

29、 X 4.3.4 3.6 Resistance of bridge wire and wire leads X X X 4.3.5 3.7 No-fire X X X 4.3.6 3.8 Waterproofness X X X 4.3.7 3.9.1 Ampere initiation of single cap X X X 4.3.8.1 3.9.2 Milliwatt-second initiation of single cap X X X 4.3.8.2 3.9.3 Fire conditions for fifty (50) caps in series X X X 4.3.8.3

30、 3.9.4 Fire conditions for four (4) caps in series X X X 4.3.8.4 3.10 Marking performance and durability X X 4.3.9 3.11 Workmanship X X X X 4.3.2 4.1 Classification of verification. The verification requirements specified herein are classified as follows: a. First Article Inspection (see 4.2) b. Con

31、formance Inspection (see 4.3) 4.2 First article inspection. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45468F(AR) 6 4.2.1 Submission. When specified, a first article sample of 190 M6 caps shall be submitted for evaluation in accordance w

32、ith the provisions of 4.2.2, Table II, and Figure 1. 4.2.2 Rejection. The first article sample shall be rejected if any of the inspections/tests fail to meet specification or drawing requirements. TABLE II. First article inspection. Examination or test Conformance criteria Requirement paragraph Para

33、graph reference/ inspection method Examination for defects 190 3.2 3.3 4.3.2.2 4.3.2.9 Moisture content of lead azide 2 grams 3.4 4.3.3 Lead wires pull test 190 3.5 4.3.4 Resistance of bridgewire and leads 190 3.6 4.3.5 No-fire 190 3.7 4.3.6 Waterproofness 110 3.8 4.3.7 Ampere initiation 50 3.9.1 4.

34、3.8.1 Milliwatt-second initiation 50 3.9.2 4.3.8.2 50 cap series 50 3.9.3 4.3.8.3 4 cap series 40 3.9.4 4.3.8.4 Packing and marking 5 3.3 4.3.2.7 4.3.2.9 Marking performance and durability 3 3.10 4.3.9 FIGURE 1. First article test and lot acceptance test sequence. 4.3 Conformance inspection. Provide

35、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45468F(AR) 7 4.3.1 Inspection lot formation. Lot formation shall be in accordance with the lot requirement of MIL-STD-1916. Lot numbering, as required, shall be in accordance with MIL-STD-1168. Each in

36、spection lot of loaded charge assemblies shall contain: a. Parts from not more than one lot interfix number from one manufacturer. b. Ignition charge from not more than one lot from one manufacturer. c. Lead azide from not more than one lot from one manufacturer. d. RDX from not more than one lot fr

37、om one manufacturer. 4.3.2 Examination. For the conformance inspection paragraphs 4.3.2.2 to 4.3.2.9, the definitions of critical, major, and minor defects are provided in paragraph “Definitions” of MIL-STD-1916. Inspection sampling requirements for critical, major, and minor characteristics aree de

38、fined 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 characteristics defined as Major, and Inspection Level II for all Minor characteristics. Three chara

39、cteristics are defined as Critical in 4.3.2.5. 4.3.2.1 Allowance for failure mode. A lot shall be accepted with one function failure as long as there is evidence of bridgewire failure. Bridgewire failure shall be determined by a continuity check prior to functioning and does not replace the inspecti

40、on in 3.6. 4.3.2.2 Plug assembly (rubber). DRAWING NUMBER 8830971 NEXT HIGHER ASSEMBLY 8830972 CATEGORY EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH PARAGRAPH REFERENCE/ INSPECTION METHOD Critical None defined Major 101 Pull test of lead wires IV 3.5 4.3.4 102 Length of bare wire n

41、ot covered by rubber plug IV 3.2 Gage 103 Length from bare end of lead wire to insulation, max. IV 3.2 Gage 104 Length of plug, min. IV 3.2 Gage105 Bridge wire improperly soldered IV 3.2 Visual106 Tension on bridge wire IV 3.2 Visual 107 Resistance of bridge wire and lead wires 100% 3.6 SME Minor 20

42、1 Diameter of plug, min. II 3.2 Gage202 Evidence of poor workmanship II 3.11 Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45468F(AR) 8 4.3.2.3 Cup. DRAWING NUMBER 8830953 NEXT HIGHER ASSEMBLY 8830972 CATEGORY EXAMINATION OR TEST CON

43、FORMANCE CRITERIA REQUIREMENT PARAGRAPH PARAGRAPH REFERENCE/ INSPECTION METHOD Critical None defined Major 101 Cup split or cracked 100% 3.2 Visual 102 Thickness through bottom IV 3.2 Gage 103 Length, min. IV 3.2 Gage Minor 201 Inside diameter, min. II 3.2 Gage 202 Outside diameter, max. II 3.2 Gage

44、 203 Concavity of bottom, max. II 3.2 Gage 204 Evidence of poor workmanship II 3.11 Visual 4.3.2.4 Spool. DRAWING NUMBER 8830954 NEXT HIGHER ASSEMBLY 8830972 CATEGORY EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH PARAGRAPH REFERENCE/ INSPECTION METHOD Critical None Defined Major Non

45、e defined Minor 201 Total length II 3.2 Gage 202 Depth of slot II 3.2 Gage 203 Width of slot, min. II 3.2 Gage 204 Outside diameter, max. II 3.2 Gage 205 Evidence of poor workmanship II 3.11 Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-

46、DTL-45468F(AR) 9 4.3.2.5 Assembly (prior to insertion in spool). DRAWING NUMBER 8830972 NEXT HIGHER ASSEMBLY - CATEGORY EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH PARAGRAPH REFERENCE/ INSPECTION METHOD Critical 1 Cup split or cracked or explosive leakage 100% + VL-VII 3.3 Visual

47、2 No-fire test 100% + VL-VII 3.7 4.3.6 3 Lead wires not shunted 100% + VL-VII 3.3 Visual Major 101 Length of cup, max. IV 3.3 Gage 102 Diameter of cup, crimp end, max. IV 3.3 Gage 103 Insulation on lead wires damaged IV 3.3 Visual 104 Not crimped 360 (4 places) IV 3.3 Visual 105 Moisture content of

48、lead azide 2 grams, see 1/ 3.4 4.3.3Minor 201 Evidence of poor workmanship II 3.11 Visual 1/: Sampling of lead azide shall be in accordance with 4.3.3. 4.3.2.6 Assembly. DRAWING NUMBER 8830972 NEXT HIGHER ASSEMBLY - CATEGORY EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH PARAGRAPH REFERENCE/ INSPECTION METHOD Critical None defined Major 101 Insulation on wires damaged IV 3.3 Visual102 Spool torn or crushed IV 3.3 Visual103 Waterproofness 110 3.8 Figure 1 and 4.3.7 104 Functioning ampere 50 3.9.1 Figure 1 and 4.3.8.1 105 Functioning mi