1、MIL-F-b344bB 799990b L9903LO 343 = I INCH-POUND I MIL-F-63446B (AR) 12 September 1994 SUPERSEDING 12 September 1983 MIL-F-63446A (AR) MILITARY SPECIFICATION FUZES, GENERAL PURPOSE GRENADE: M230 AND M231 (PRACTICE) This specification is approved for use by the U.S. Anny Armament, Munitions and Chemic
2、al Command, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements, examinations, and tests for the M230 and M23 1 Fuzes with detonator, used with the M73 GP Grenade and M75 GP Grenade, respectively. It co
3、vers quality assurance provisions and special test requirements not covered by the drawings for parts, assembly and packaging of the fuzes. (see 6.1). 2, APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specification. standards and handbooks. The following specifications, standards, and handbook
4、s form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIO
5、NS MILITARY MIL-D-14978 - Detonator, Stab, M55: Loading, Assembly and Packing. MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specifications for MIL-A-70625 - Automated Acceptance Inspection Equipment for Non- Electronic Components, Design, Testing and Approval, of STANDARD
6、S MILITARY MIL- STD- 109 - Quality Assurance Terms and Definitions Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander U.S. Army ARDEC. AITN: SMCAR- BAC-S, Picatinny Arsenal, New Jersey, 0
7、7806-5000 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 1340 PISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permi
8、tted without license from IHS-,-,- MIL-F-6344bB 9999906 1990311 2BT MIL-F-63446B (AR) MIL-STD-331 - Fuze and Fuze Components, Environmental and . Performance Tests for MIL- STD- 8 1 O - Environmental Test Methods MIL-STD- 1 167 - Ammunition Data Cards (Unless otherwise indicated, copies of federal a
9、nd military specifications, standards, and handbooks are available from DODSSP - Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 191 11-5094.) Government documents, drawings, and publications form a part of this document to the extent specified
10、herein. Unless otherwise specified, the issues are those cited in the solicitation. 2.1.2 Other Government documents, drawings. and publications. The following other DRAWINGS (see 6.5) US ARMY ARMAMENT, RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) 87991 12 - Marking Diagram and Sealing for I
11、nterplant or 9333825 - Fuze General Purpose Grenade: M230 934049 1 - Box, Fiber, Inner, Packing, Ammunition for Fuze, 9340492 - Box, Fiber, Outer, Packing Ammunition for Fuze, 9345 168 - Fuze General Purpose Grenade Practice: M231 (Copies of other documents, drawings and publications required by con
12、tractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) CONUS Shipment of Ammunition Fiberboard Boxes M230N23 1 M230/M23 1 2.2 Non-Government publications. The following document forms a part of this doc
13、ument to the extent specified herein. Unless otherwise specified, the issues of the document 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
14、 in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) B85 - Standard Specification for Aluminum-Alloy Die Castings (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1 187.) the reference
15、s cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. (See contract provisions for additional precedence criteria.) 2.3 Order of precedence. In the event of a conflict b
16、etween the text of this document and 3. REQUIREMENTS 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-63446B (AR) 3.1 Materials. Materials shall be as specified herein and on the applicable drawings and specifications. 3.2 First article, When
17、specified in the contract or purchase order (see 6.2), a sample shall be subjected to first article in accordance with the technical provisions herein (see 4.3). 3.3 Drawings. The drawings forming a part of this specification are end product drawings. No deviation from the prescribed dimensions or t
18、olerances is permissible without prior approval of the contracting officer. Where tolerances could cumulatively result in incorrect fits, the contractor shall provide tolerances within those prescribed on the drawings to insure correct fit, assembly, and operation of the fuze. Any data (e.g., shop d
19、rawings, layouts flowsheets, processing procedures, etc.) prepared by the contractor or obtained from a vender to support fabrication and manufacture of the production item shall be made available, upon request to, for inspection by the contracting officer or his designated representative. The dimen
20、sions shown on the drawings apply at room temperatures from 48F to 70F. 3.4 Fuze assemblies and Darts. Fuze assemblies and parts shall comply with all the requirements specified on Drawings 9333825,9345 168, associated drawings as applicable, and with ail requirements specified in applicable specifi
21、cations and standards. 3.4.1 Molded plastic parts. Dimensions on plastic parts that are a function of core and cavity sizes of the mold itself shall be inspected at reduced levels. One tenth of one percent (. 1%) of a production lot shall be inspected per cavity. A single reject resulting from the r
22、educed inspection of molded dimensions shall cause that cavity to be removed from production until corrective action is taken and the part from that cavity re-qualified. 3.4.2 Die cast arts. The aluminum die cast fuze body shall be manufactured, tested and 3.4.3 Porositv check. The die cast fuze bod
23、y shall be inspected for porosity in accordance inspected per the requirements of ASTM B85 and Drawing 9333824. with 4.5.1 of this specification. 3.4.4 SDMPS. 3.4.4.1 SDring embrittlement. The springs used in the fabrication of the fuze shall not break 3.4.4.2 Spring set. The slider spring and firin
24、g pin spring shall maintain drawing load when extended or distorted to the point of minimum permanent distortion. requirements after being compressed at elevated temperatures. 3.4.5 Detonator. All detonators shall have been subjected to and passed all the 3.4.6 Lead output. The long and short lead a
25、ssemblies, when initiated in tandem by an M55 requirements of MIL-D-14978. detonator, shall cause an impression in a steel witness block not less than .O15 inch in depth. 3.5 Functional requirements. 3.5.1 Jolt. The fuze shall be safe to store, handle, use or dispose of after being subjected to Test
26、 Al, Jolt Machine Method of MIL-STD-33 1. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- RIL-F-b3YYbB 99999Ob 1990313 052 MIL-F-63446B (AR) 3.5.2 Jumble. The fuze shall be safe to store, handle, use or dispose of after being subjected to Test A2,
27、 of MIL-STD-331. 3.5.3 Transportation vibration. The fuze shall be safe and meet all functional requirements 3.5.4 Helicopter vibration. The fuze shall be safe and meet all functional requirements of of this specification after being subjected to B1, Section 1-5 of MIL-STD-331. this specification af
28、ter being subjected to Method 514 of MIL-STD-810. 3.5.5 Five foot drop. The fuze shall be safe to store, handle, use or dispose of after being subjected to Test A4, Single Drop Procedure of MIL-STD-331. The fuze need not be operable. 3.5.6- Thermal shock. The fuze shall be safe and meet all function
29、al requirements of this 3.5.7 Shear wire test. It shall require 18.75 _+ 3.25 pounds of force to sever the shear wire specification after being subjected to Test C7 of MIL-STD-331. of an assembled fuze when a constant pull rate is applied in a direction within two degrees parallel to the axis of the
30、 arming pin. 3.5.8 Safety pin removal. It shall require not less than one pound and not more than eight pounds of force to remove the safety pin from the fuze when the direction of the applied load is within five degrees of the axis of the safety pin. The load shall be applied at a constant rate. th
31、e slider shall travel the full arming stroke in an elapsed time of 1 SO A SO seconds. 3.5.9 Arming time. After removal of the safety pin and upon withdrawal of the arming pin, 3.5.10 Fuzing no-go. An armed fuze shall not trigger (release firing pin) when subjected to the No-Go Shock Test. 3.5.1 1 Fu
32、zin EO. An armed fuzr hall trigger and initiate the detonator when subjected to the Go Shock Test. 3.5.12 Arming ?“/slider lock. The annjng pin shall lock the slider in its fully safe position when the fuze is fully assembled. 3.5.13 Auto mew. The trigger shall not function spontaneously when the sl
33、ider is moved 3.5.14 Temperature. The fuze shall withstand exposure to and function after a storage to the fully armed position. temperature of -500F _+ 50F, 70OF _+ 150F and 1600F f 50F. 3.6 Data requirements. The contractor shall generate data in accordance with the 3.7 Workmanship. All parts and
34、accessories shali be free from burrs, chips, sharp edges, requirements of 4.5.18. unblended radii, cracks, surface checks, blisters, excess flash, corrosion products and other foreign matter. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the clean
35、ing agents. Surface coating shall be continuous except for a few slight scratches not exposing the base material. The loading and assembly operations shall be performed in a thorough workmanlike manner consistent with the best practices of modem industry. All required markings shall be neat and shar
36、ply defined. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-b344bB 9999906 L9903L4 T99 MIL-F-63446B (AR) 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the con
37、tractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of inspection requirements spec
38、ified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 5. The inspection set forth in this s
39、pecification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptanc
40、e comply with all requirements of the contract. Sampling inspection, as a part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the
41、Government to accept defective material. 4.1.1 Responsibility for compliance. Ali items shall meet all requirements of sections 3 and 4.1.2 General provisions. Unless otherwise specified herein, the provisions of MIL-A- 48078 apply and form a part of this specification. Reference shall be made to MI
42、L-STD-109 to define quality assurance terms used herein. 4.2 Classification of inspections. The following types of inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). 4.3 First article inspection. 4.3
43、.1 Submission. The contractor shall submit a first article sample as designated by the Contracting Officer for evaluation in accordance with provisions of 4.3.2. The fist article sample shall consist of the assemblies, components and test specimens listed below in the quantities indicated. 5 Provide
44、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-b344bB = 99999Ob 1990315 925 MIL-F-63446B (AR) Part Desci+tion Slider Body, Fuze Spring, Slider Screw, Pivot Anti-twist Pin Sleeve, Fuze Body Fuze Body Assembly Trigger Wire, Shear Slider, M55 Detonator
45、Assembly Pin, Safety Pinion, Escapement Gear Escapement Escapement Gear-Pinion Assembly PinionNo. 1 GearNo. 1 No. 1 Gear-Pinion Assembly Pinion No. 2 Gear KO. 2 No. 2 Gear-Pinion Assembly Lever Pallet, Lever Shaft, Lever Lever Assembly Plate, Bottom Plate, Top Pillar Escapement Gear Assembly Body, F
46、iring Pin Pin, Straight Firing Pin, Subassembly Cap, Firing Pin Spring, Firing Pin Firing Pin Assembly Ball, Detent Plate, Barrier Spring, Arming Pin Lock Disr. Closing Ledd Cup Assembly, Short Lead Cup, Long Lead Cup Assembly, Long Plate Assembly, Barrier Drive Screw, Modified Barrier Plate Assembl
47、y with Retaining Tape Fuze, General Purpose Grenade Practice: M23 1 Fuze, General Purpose Grenade: M230 Pin, mg k- d CUP, Short Drawing 9333807 9333824 933381 1 9333808 9347220 9345131 9347 185 93338 12 9333814 9345 128 93472 19 93338 18 8833366 8833365 8833364 8833360 8833359 8833358 8833363 883336
48、2 8833361 8833369 8833368 8833370 8833367 8833356 8833357 8833355 8 8 3 3 3 5 3 93338 16 9345321 9345 130 9333817 93338 10 9347 182 9349223 9333809 9345 129 933382 1 9333822 9333823 93338 19 93 3 3 820 9345 166 9390620 12561493 9345 168 9333825 quantity 25fCavity 25fCavity 25 25 25 25 25 25 25 25 25
49、 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25ldie 25fdie 25 50 25 25 50 25 25 25 25 25 25 25 50 50 25 50 50 25 50 239(min) 239(min) 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I L L- v) W L- O a MIL-F-634466 9999906 1970316 8bL v,v,mv, mmmm v, N v, m 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-v) o t c a c C c E c c 3 -3 ul m n L +
