1、I INCH-POUND I ML-1-6023 lB(0S) 26 Januarv 1995 MIL44023 1A SUPERSEDING 26 April 1974 MILITARY SPECIFICATION IGNITION ELEMENT, ELECTRIC, M55 ASSEMBLY is specjcarion is approved for use by the Naval Sea Systems command, Department of the Navy, and is available for use all Depamnts and Agencies of the
2、 Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the M55 Ignition Element Assembly (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and standards form a part of this document to the
3、 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 supplements thereto, cited in the solicitation (see 6.2). SPECIFICATIONS MILITARY MIL-A-2550 Ammunition, G
4、eneral Specification for STANDARDS MILITARY MIL-STD-105 MIL-STD-109 Sampling Procedures and Tables for Inspection by Attributes Quaiity Assurance Terms and Definitions Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document sh
5、ould be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Branch (Code 8420), 101 Strauss Avenue, Indian Head, MD 20640-5035, by using the self addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or b
6、y letter. AMSC NIA FSC 1377 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-6023LB MIL-1-6023 lB(0S) MIL-STD-129 MIL-STD-202 MIL-STD-453 Inspection, Radiographic
7、MIL-STD-8 10 MIL-STD-1168 Ammunition Lot Numbering Marking for Shipment and Storage Test Methods for Electronic and Electrical Component Parts Environmental Test Methods and Engineering Guidelines (Unless otherwise specified, copies of federal and military specifications and standards are available
8、from Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 191 11- 5094.) 2.1.2 Other Government documents, drawings, and publications. The following Government drawings form a part of this specification to the extent specified herein. Unless otherwise specified, th
9、e issues are those cited in the solicitation (see 6.2). DRAWINGS Naval Surface Warfare Center, Indian Head Division (CAGE Codes 19200 and 19203) DL10534225 8887525 92 3 3 342 Ignition Element, Electric, M55 Assembly Box, Packing, Ammunition, for Ignition Element, Electric, M55 Container, Ammunition,
10、 Metal, for Ignition Element, Electric, M55 (Application for copies should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Attn: Data Control Branch (Code 8410), Indian Head, MD 20640-5035.) 2.2 Non-Government publications. The following document forms a part of this
11、document to the extent specified herein. Unless otherwise specified, 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 c
12、ited in the solicitation (see 6.2). ANSI B46.1 Surface Texture (Application for copies should be addressed to the American National Standards Institute (ANSI), 1430 Broadway, New York, N.Y. 10018). 2.3 Order of precedence. In the event of a conflict between the text of this document and the referenc
13、es 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 First article. When specified (see 6.2), a sample shall be subjected to first article inspecti
14、on (see 6.5) in accordance with 4.4. 3.2 Conformance to documents. The M55 Ignition Element covered by this specification shall be manufactured in accordance with DL10534225. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bO231B 9 9999706 17
15、9b7LB 701 MIL-1-6023 lB(0S) 3.3 Materials. All materials used in the manufacture of the cartridges shall conform strictly to the specifications referred to on the respective drawings unless specific approval in writing covering a departure therefrom has been obtained fiom the cognizant Navy design a
16、ctivity prior to manufacture. When alternate materials or methods of manufacture are specified on the drawings, the bidders selections shall be clearly stated in the proposal. 3.4 Electrical. 3.4.1 Dielectric withstanding voltage. The body assembly, prior to the assembly of the bridgewire, shall not
17、 exhibit a leakage current in excess of 100 microamperes when subjected to lo00 volts of direct current applied between pin and body. 3.4.2 Bridge circuit resistance. The bridge circuit resistance of the ignition element shall be O. 11 f 0.03 ohm. 3.5 Environmental. 3.5.1 Leakage. The ignition eleme
18、nt shall not exhibit a leak rate of 1 x lo-* cubic centimeters per second or more when withstanding a dry leak test at a pressure differential of 14 psi. 3.5.2 Vibration. The ignition element shall withstand vibration testing in accordance with MIL-STD- 810, method 514.3, test procedure I, test cond
19、ition I, with no evidence of disintegration of the propellant or derangement of components. The ignition element shall not autoignite, shall be safe to handle, and shall meet the requirements of 3.4.2, 3.5.1, 3.7.1, and 3.7.2 at 70F following vibration testing. 3.5.3 Hydrostatic pressure. The body a
20、ssembly shall be capable of withstanding a hydrostatic pressure of 10,ooO psi without any evidence of mechanical failure or leakage (see 6.4.2). 3.6 Radiographic examination. Each ignition element shall be radiographically examined for defects (see 4.5.3.4). 3.7 Functional. 3.7.1 Maximum no-fire sti
21、mulus. The electrical ignition element shall not fire when a direct current of 1.5 amperes, maximum, is applied for 60 seconds. 3.7.2 All-fire stimulus. After the application of the maximum no-fire stimulus current, the electrical ignition element shall fire within 50 milliseconds maximum when a dir
22、ect current of 5.0 amperes is applied at temperatures of -65“F, 70“F, and 200F. The test fixture shall be temperature conditioned along with the test unit. The electric ignition element shall deliver a pressure of Zoo0 psi minimum to 6O psi maximum when fired into a 1 cubic centimeter bomb. There sh
23、all be no evidence of blowback or mechanical failure of the glass-to-metal seal (see 6.4.1 and 6.4.2). 3.7.3 Minimum all-fire stimulus. The ignition element shall fire within 50 milliseconds when a direct current of 3.5 amperes is applied at temperatures of -65“F, 70“F, and 200F. The electric igniti
24、on element shall meet the requirements of 3.7.2. Data will be recorded for information only (see 6.4.1). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bO2316 MIL-1-23 lB(0S) 3.8 Workmanship. Workmanship shall be in accordance with the requi
25、rements of the applicable drawing, reference specifications, and the following. 3.8.1 Metal defects. All components shall be free from cracks, 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
26、 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, grease, rust, corrosion, or other foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract o
27、r purchase order, the contractor 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 the
28、 inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements (see 6.2
29、). 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall
30、 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 to require
31、ments; 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 terms used
32、. 4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550 and MIL-STD-453. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4) b. Quality conformance inspection (see 4.5) 4.3 Inspection conditi
33、ons. Unless otherwise specified in the contract or purchase order (see 6.2), inspection conditions shall be as follows: a. Temperature: Room ambient 68 to 77F b. Altitude: Sea level c. Humidity: 50 percent relative, maximum d. Atmospheric: 14.7 psia 4 Provided by IHSNot for ResaleNo reproduction or
34、networking permitted without license from IHS-,-,-NIL-I-60231B = 9997906 I1996720 3bT MIL-1-6023 lB(0S) 4.4 E“irst article inspection. At the beginning of regular production, the contractor shall submit a first article sample to the Government approved facility for evaluation. The sample shall consi
35、st of 112 ignition elements, 10 sets of parts, and 5 inert body assemblies. The sample shall be subjected to the tests in 4.5.3. Test procedures shall be in accordance with 4.6. The first article sample shall be manufactured using the same materials, equipment, processes, and procedures as usai in r
36、egular production. All parts and materials, including packaging and packing, shall be the same as used for regular production and shall be obtained from the same source of supply. The contractor shall inspect the sample in accordance with his inspection system. The Government reserves the right to r
37、equire new first article samples until such time as an acceptable sample is submitted (see 6.5). 4.4.1 Examination, tests, and facility. After provisional acceptance at source, the sample shall be inspected for ail requirements of the drawings and specifications at a Government laboratory or other s
38、uch facility specified in the contract (see 6.2). 4.5 Quality conformance inspection. 4.5.1 Lot. 4.5.1.1 Submission of product. Unless otherwise specified by the contracting activity, formation and identification of lots shall be in accordance with MIL-STD-105. 4.5.1.2 Lot size, The production lot s
39、ize shall be as specified in the contract (see 6.2). The maximum lot size allowed is 2400 exclusive of test samples and shall consist of: a. Components produced by a homogeneous process b. Body assemblies (metal-to-ceramic seal) which have been heated in a furnace with the same process control c. Pr
40、imer mixtures from not more than one lot d. Loading produced by a homogeneous process 4.5.2 Examination. One hundred percent examination shall be performed for all nondestructive critical defects, Examination for all major and minor defects shall be performed in accordance with the classification of
41、 defects. Four power (4x) magnification may be used for inspection of such defects as burrs and foreign matter. When compliance with the applicable requirements is in doubt as a result of visual examination, the characteristic shall be measured or gaged to determine acceptability. All non- conformin
42、g material shall be rejected. 4.5.3 Inspection testing. The following tests shall be performed in accordance with the provisions of 4.6. 4.5.3.1 Electrical. 4.5.3.1.1 Dielectric withstanding voltage. Each body assembly prior to assembly of bridgewire shall be subjected to the test. Failure of any un
43、it to comply with the requirements of 3.4.1 shall be cause for rejection of the unit. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bO233B Temperature (OF) -6Oto -70 65 to 75 195 to 205 9999906 3996723 2Tb m Number of units 20 60 20 MIL-1-6
44、023 lB(0S) 4.5.3.1.2 Bridge circuit resistance. Each ignition element assembly shall be subjected to the test. Failure of any unit to comply with the requirements of 3.4.2 shall be cause for rejection of the unit. 4.5.3.2 Environmental. 4.5.3.2.1 Leakage. Each ignition element shall be subjected to
45、the test. Failure of any unit to comply with the requirements of 3.5.1 shall be cause for rejection of the unit. 4.5.3.2.2 Vibration. Twelve ignition assemblies of the initial production sample shall be subjected to the test. Failure of any unit to comply with the requirements of 3.5.2 shall be caus
46、e for rejection of the lot. Any changes in the loading process shall be cause for selecting a new sample for the vibration test. 4.5.3.3 Hydrostatic pressure. Five body assemblies of each lot shall be subjected to the test. Failure of any unit to comply with the requirements of 3.5.3 shall be cause
47、for rejection of the lot. 4.5.3.4 Radiographic examination. All assembled ignition elements shall be radiographically examined in accordance with MIL-STD-453, with the exception that an inert, unplated ignition element shall be used as the penetrameter. Any observable imperfections in components or
48、assembly shall be cause for rejection of the item. Ignition elements shall be positioned for the most revealing exposure, with the long axis of each assembly perpendicular to the rays of the X-ray machine. Ignition elements shall be identified with serial numbers prior to X-ray examination. The seri
49、al numbers shall be in consecutive order beginning with the number O01 in each production lot. Any missing numbers are to be identified on the X-rays, The ignition elements shall be arranged on trays or boards in consecutive numerical order, and each radiograph shall carry a permanent identification of the units displayed thereon. The radiographic plate identification shall include item nomenclature, the complete lot number, the span of serial numbers displayed, and the contr
