1、1 . a- r MIL-I-bOb39A 13 9999906 0478267 L 9 INCH-POUND MIL-Id0639A 23 Amil 1991 SUPERSEDING 27 July 1967 MIL-Ido639(0S) MILITARY SPECIFICATION INITIATOR, CARTRIDGE ACTUAmD, DELAY, M31 ASSEMBLY This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SC
2、OPE 1.1 Scope. This specification covers the requirements for the M31 Delay Cartridge Actuated Initiator Assembly (see 6.1). 2. APPLICABLE DOCUMENTS 2.1. Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this d
3、ocument 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). SPECIFICATIONS MILITARY MIL-A-2550
4、 Ammunition, General Specification For MIL-1-14857 Initiator, Cartridge Actuated, Delay, M10, M31, M42, M72, and M114 Remanufactured Metal Parts Assembly Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addres
5、sed to: Commanding Officer, Naval Ordnance Station, Standardization Branch (3730), Indian Head, Maryland 20640-5000, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 1377 DISTRIBUTION STATEMENT A. Approved for
6、public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bOb39A 13 m 999940b OLI782b8 3 m MIL-Id0639A . MIL-1-60296 STANDARDS MILITARY MIL-STD-LO5 MIL-STD- 1 O9 MIL-STD-453 MIL-STD-1168 MS28741 Initiator, Cartr
7、idge Actuated, Delay, M10, M31, M42, M72, and M114 Metal Parts Assembly Sampling Procedures and Tables for Inspection by Attributes Quality Assurance Terms and Definitions Inspection, Radiographic Ammunition Lot Numbering Hose Assembly, Detachable End Fitting, Medium Pressure (Unless otherwise indic
8、ated, copies of federal and military specifications, standards, and handbooks are available from Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19 111-5094). 2.1.2 Other Government documents, drawings, and publications. The following other Government document
9、s, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation (see 6.2). DRAWINGS NAVAL ORDNANCE STATION, INDIAN HEAD, MD (CAGE Codes 19200 and 19203) 8593312 Cartridge, Delay, M93 Assembly DL8595
10、25 1 Initiator, Cartridge Actuated, Delay, M3 1, Assembly 8798142 Box, Packing, Ammunition for Initiator, Cartridge Actuated, Delay, M10, M30A1, M31, M32A1, M42, M43A1, M72, M92, or M114 8798 143 Box, Fiberboard (Inner) Packing, Ammunition for Initiator, Cartridge Actuated, Delay, M10, M30A1, M31, M
11、32A1, M42, M43A1, M72, M92, or M114 9216933 Box, Fiberboard (Outer) Alternative, Packing Ammunition, for Initiator, Cartridge Actuated, Delay, M10, M30A1, M31, M32A1, M42, M43A1, M72, M92, or M114 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL
12、-I-bOb39A 13 9999906 OY782b9 5 = MIL-I-60639A U.S. AIR FORCE Jge Actuata M72 (Application for copies should be addressed to: Commanding Officer, Naval Ordnance Station, Data Control Branch (Code 3720), Indian Head, MD 20640-5000.) 2.2 Order of precedence. In the event of a conflict between the text
13、of this document and the references 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. 3. REQUIREMENTS 3.1 Materials. All materials used in the manufacture of the initi
14、ators shall conform to the specifications referred to on the respective drawings unless specific approval in writing covering a departure has been obtained from the cognizant Navy design activity prior to manufacture. When alternate materials or methods of manufacture are specified on the drawings,
15、the bidders selections shall be clearly stated in the proposal. 3.2 Conformance to documents. Ths M31 initiator covered by this specification shall be manufactured in accordance with DL8595251. 3.3 Components. 3.3.1 Primary components. For the purpose of this specification, the M93 delay cartridge r
16、awing 8593312) is defined as a primary component. Only primary components from a single lot shall be used in a production lot of initiators. One primary component production lot may be used in more than one initiator production lot. 3.3.2 Component parts. All component parts shall meet the applicabl
17、e requirements of MIL-I- 14857 or MIL-1-60296 prior to assembly. 3.4 Breakaway torque. The chamber and cap of each assembled initiator shall withstand a breakaway torque application of 400 inch-pounds without loosening or deformation (see 4.3.1). 3.5 Residual magnetism. The initiator shall not defle
18、ct the indicator of the compass more than five degrees in either direction (see 4.3.2). 3.6 Radiographic examination. Each initiator assembly shall be radiographically examined for defects (see 4.3.3). 3.7 Functional. 3.7.1 Ballistics. Initiators loaded with cartridges from one accepted lot and temp
19、erature conditioned shall perform within the pressure values and delay times (see 6.6. i) specified in table I. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bOb39A 13 M 999990b O478270 L ME-I-60639A I Temperature (OF) I Minimum Maximum Pre
20、ssure values shall be recorded at the end of 15 feet of aircraft hose, assembly number MS28741-4, and a pressure chamber with a volume of 1 cubic inch. TABLE I. Pressure values. I Delay time (sec) I I I -60 to -70 65 to 75 195 to 205 500 1250 1.00 + 0.30 - 0.20 600 1500 1.00 + 0.30 - 0.20 800 1800 1
21、.00 + 0.30 - 0.20 3.7.1.1 Initiation. The initiator shall be fired by a source delivering an output pressure of 700 +25, -O pounds per square inch (gage) (psig) at 70 f 5F. 3.7.2 Misfires. There shall be no misfires. 3.7.3 Mechanical failures. The initiator shall function without mechanical failure
22、(see 6.6.2). 3.8 Workmanship. Initiators shall be free of cracks, splits, incomplete or damaged threads on inlet and outlet ends, or other defects which might prevent proper mating with connecting parts or proper functioning of the device. 3.8.1 Metal defects. All components shall be free from crack
23、s, splits, cold shuts, inclusions, porosity or any similar defect. 3.8.2 Burr. No part shall have a burr which might interfere with the assembly or function of the item or which might be injurious to personnel handling the item. 3.8.3 Foreign matter. No part or assembly shall contain chips, dirt, gr
24、ease, rust, corrosion or other foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herei
25、n. 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 the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspe
26、ctions set forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements (see 6.2). 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specificati
27、on shall become a part of the contractors overall inspection 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. 5 MIL-I-bOb39A 13 99999Ob 0478271 3 - MIL-I-60639A system or quality program. The absence of any inspection requirements in the specifica
28、tion shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance
29、to requirements; however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.1.2 Quality assurance terms and definitions. Reference shall be made to MIL-STD-109 to define the quality assurance
30、terms used. 4.1.3 Inspection. Inspection shall be in accordance with MIL-A-2550 and MIL-STD-453. 4.2 Inspection provisions. 4.2.1 Lot. 4.2.1.1 Submission of product. Unless otherwise specified by the contracting activity, formation and identification of lots shall be in accordance with MIL-STD-105.
31、4.2.1.2 Size of lot. A lot shall consist of an identifiable group of assembled initiators containing metal parts assemblies produced by a homogeneous process and loaded with one lot of accepted e cartridges. 4.2.2 Examination. One-hundred percent examination shall be performed for all critical defec
32、ts. Examination for major and minor defects shall be performed in accordance with the classification of defects, Four power (4X) magnification may be used for inspection of such defects as burr and foreign matter, When compliance with the applicable requirement is in doubt as a result of visual exam
33、ination, the characteristic shall be measured or gaged to determine acceptability. All nonconforming material shall be rejected. 4.2.2.1 Cartridge, Delay, M93, Drawing 8593312, covering a detail of Drawing 8595251. Characteristic Critical 1 2 3 Major 101 102 Minor 20 1 202 Defect Mixed cartridges Me
34、tal defective O-ring missing O-ring split, cut, or cracked Foreign matter present Case scratched, wrinkled, bulged, or dented Varnish missing or inadequate Method of Inspection Visual Visual Visual Visual Visual Visual Visual 5 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
35、hout license from IHS-,-,-MIL-I-bOb39A 13 9999906 0478272 5 MIL-1-60639A 4.2.2.2 Assembly, Drawing 8595251, less Drawings 8595254, 8594857,8594860, 8593312, and MILC-5501/10, and MILC-5501/11. Characteristic Defect Method of Inspection Critical 1 Set screw missing Major 101 102 103 Thread damaged Bu
36、rr Foreign matter present Visual Visual Visual Visual Minor None defined 4.2.2.3 Assembly, Drawing 8595251, less Drawing 8594857, MILC-5501/10, and MILC-5501/11. Critical 1 2 3 4 Cartridge loose Manual/Visual Cartridge retainer loose Manual/Visual Metering groove of cartridge retainer missing Elonga
37、ted hole of cartridge retainer missing Visual Visual Major None defined Minor None defined 4.2.2.4 Assembly, Drawings 8595251, 10521631, less MILC-5501/10, and MILC-5501/11. Critical 1 Location of cartridge retainer 2 3 Any part missing 4 Improper assembly 5 Shear pin not engaged in firing pin Forei
38、gn matter in gas port Major 101 X-ray Gage/X-ray VisualK-ray VisualK-ray Visual Length from firing pin housing boss face to gas port face, max Gage 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bOb39A 13 M 9999906 0478273 7 M MIL-1-60639A C
39、haracteristic Defect Minor 201 Varnish missing or inadequate 202 Location of label, incorrect 203 Barrier material missing from set screw 4.2.2.5 Assembly, Drawing 8595251. Critical 1 Marking missing, incorrect or illegible Major 10 1 102 Height of cap, max Cap set screw missing, loose or above flus
40、h Minor 201 Total length, max 202 Location of marking incorrect 203 Protective cap or plug missing 204 Protective finish inadequate or defective 4.2.2.6 Box, Fiberboard (Inner) Ammunition, Drawing 8798143. Critical None defined Major None defined Minor 201 202 203 204 205 Contents loose Box damaged
41、Sealing strip broken or missing Marking missing, incorrect, or illegible Cut, damaged, or improperly sealed bag 4.2.2.7 Box, Ammunition Packing, Drawing 8798142. Method of Inspection Visual Visual Visual Visual Gage Visuai Measure Visual Visual Visual Manual Visual Visual Visual Visual Critical . No
42、ne defined Major None defined 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-60639A Characteristic Defect Method of Inspection Minor 201 202 203 204 205 206 Contents loose Manual Strapping missing, loose, broken, or improperly engaged Visual
43、/Manual Contents of box exposed Visual Box damaged Visual Marking missing, incorrect, or illegible Visual Number of units incorrect Visual 4.2.2.8 Box, Fiberboard (Outer) Alternative Ammunition Packing, Drawing 9216933. Critical None defined Major None defined Minor 201 202 203 204 205 Contents loos
44、e Manual/Visual Carton broken or damaged Visual Number of units contained incorrect Visual Marking missing, incorrect, or illegible Visual Tape incomplete Visual 4.2.3 Inspection testing. The following tests shall be performed in accordance with 4.3. 4.2.3.1 Breakaway torque. Each assembly shall be
45、subjected to the breakaway torque test of the threaded joint between the cap and the chamber. Failure of any assembly to comply with 3.4 shall be cause for rejection of the assembly. 4.2.3.2 Residual magnetism. Each initiator shall be subjected to the test for excessive residual magnetism as specifi
46、ed in 4.3.2. Failure of any initiator to comply with 3.5 shall be cause for rejection of the initiator. 4.2.3.3 Functional tests. The following tests shall be performed by the Government. 4.2.3.3.1 Ballistics. Twenty-one units from each lot shall be tested to determine compliance with 3.7. The units
47、 shall be temperature conditioned as provided in table I and 4.3.4.2. Failure of any unit to comply with 3.7 shall be cause for rejection of the lot. 4.2.3.3.2 Retest. There shall be no retests. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I
48、-60639A 13 m 9999706 O478275 O m r MIL-Id0639A TABLE II. Conditioning temDerature. Temperature (?Fj Sample size -60 to -70 65 to 75 195 to 205 4.2.3.3.3 Test Failure. If a test failure is attributable to an assignable cause, exciuding the test initiator, the original test results shall be discarded
49、and that test reconducted. 4.3 Test methods and procedures. 4.3.1 Breakaway torque. A torque wrench set as specified in 3.4 shall be used in conjunction with a fixture to determine the adequacy of the joints. The chamber shall be secured in an air vise, and the torque shall be applied to the cap. 4.3.2 Residual magnetism. The assembly shall be tested for excessive residual magnetism using an approved compass i
