1、MIL-DTL-320LL rn 9999906 2058559 320 rn MIL-DTL-3201 l(0S) 14 November 1997 DETAIL SPECIFICATION IGNITION DEVICE, PVU-8/A This specifcation is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all departments and agencies of the Department of Dele
2、nse. 1. SCOPE 1.1 Scope. This document gives the requirements for the manufacture, assembly, and packaging of the PVU-WA ignition devices and the methods of inspection and tests upon which product acceptance will be based. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are
3、 specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or documents recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are
4、 cautioned that they must meet ali specified requirements of the documents referenced in sections 3 and 4 of this specification, whether or not those documents are listed in this section. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standarc
5、h, and handbooks form a part of this document to the extent specified herein. Unless otherwise specifie, 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
6、). STANDADS DEPARTMENT OF DEFENSE MIL-STD-1168 Ammunition Lot Numbering DOD-STD-2 10 1 Classification Of Characteristics (niess otherwise indicated, copies of the above specifications, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue, Bldg. 4D,
7、Philadelphia, PA 19 1 1 1 - 5094.) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Team (Code 8410“), 101 Strauss A
8、venue, Indian Head, MD 20640-5035, by using the Standardization Document Improvement Proposai (DD Form 1426) appearing at the end of this document or by sendmg a letter. AMSC N/A FSC 1377 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handli
9、ng ServicesMIL-DTL-32011 D 999990b 2058560 042 D MIL-DTL-3201 l(0S) 2.2.2 Other Government documents, drawings, and publications. The following Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are tho
10、se cited in the solicitation. DRAWINGS NAVAL, AIR SYSTEMS COMMAND (CAGE Code 30003) DL844AS300 Ignition Device, PW4A 844AS300 Ignition Device, PW-8/A 83 8AS 102 Powder, Smokeless 844AS307 Powder, Ignition 25 19737 Test Set, Closed Bomb 2.3 Non-Government publications. The following documents form a
11、part of this document to the extent specifd 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 documenis not listed in he DODISS are the issues of the d
12、ocuments cited in the solicitation (see 6.2). PUBLICATIONS AMERICAN SOCIETY FOR QUALITY CONTROL ASQCZ1.4 Sampling Procedures and Tables for Inspection by Attributes (Application for copies should be addressed to the American Society for Quaiity Control, PO Box 3005, 61 1 E. Wisconsin Ave., Milwaukee
13、, WI 53201-4606.) AMENCAN NATIONAL STANDARDS INSTITUTE ANSI2l.l ANSI 21.2 ANSI 21.3 Guide for Quality Control Charts Control Chart Method of Analyzing Data Control Chart Methd of Controlling Quaiity hiring Production (Application for copies should be addressed to the American National Standards Inst
14、itute, 1430 Broadway, New York, NY 10018.) AMERICAN SOCIETY FOR TESTING AND UATERIALS ASTM D257 ASTM E1742 Standard Test Methods for DC Resistance or Conductance of Insulating Materials Standard Practices for Radiographic Examination (Application for copies should be addressed to the American Societ
15、y for Testing and Makrials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2 Licensed by Information Handling ServicesMIL-DTL-320LL 9999906 2058563 TA9 MIL-DTL-3201 l(0S) 2.4 Order of precedence. In the event of a coniict between the text of this document and the references cited herein,
16、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 General. The PVU3/A ignition devices shall be manufactured in accordance with Drawing DL844AS300 and all docume
17、nts and drawings listed thereon. Drawings listed in this specification are included as part of the data package defined by DL844AS300. 3.2 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.3.1. 3.3 Materials. All materials used in t
18、he manufacture of the ignition devices shall conform sictly with the specifications referred to on the respective Naval Air Systems Command drawings unless specific approval in writing covering a departure therefrom has been obtained from the cognizant Navy design activity prior to manufacture. When
19、 alternate materials or methods of manufacture are specified on the drawings, the bidders selections shall be clearly stated in the proposal. 3.4 Primary components. For the purposes of this specification, the primary components shall be ignition powder conforming to Drawing 844AS307 and smokeless p
20、owder conforming to Drawing 838AS102. 3.5 Explosive charges. 3.5.1 Quantity. All explosive charges shall be as specified on Drawing DL844AS300. Charges shall be determined by weight. 3.5.2 Quality characteristics. Explosive charge weight shall be a quality characteristic for statistical process cont
21、rol. Sampling for control charting shall be conducted by the contractor in accordance with established procedures. 3.6 Ignition device inspection. 3.6.1 Visual inspection. The complete ignition device shall be free of the visible defects noted in 4.6.1. 3.6.2 Leakage. The ignition devices shall not
22、exhibit a leak rate in excess of lo5 cm3/sec of air when tested in accordance with 4.6.2. 3.6.3 Radiographic. Ignition devices shall be free of imperfections when examined in accordance with 4.6.3. 3.6.4 Bridge circuit resistance. The resistance of the bridge circuit in each ignition device shaii be
23、 between 0.95 ohms and 1.25 ohms when measured in accordance with 4.6.4. 3.6.5 Insulation resistance. The insulation resistance between the electrode (connector pin) and receptacle of each ignition device shall be 20 megohm minimum when tested in accordance with 4.6.5. 3 Licensed by Information Hand
24、ling Services MIL-DTL-32OLL D 999990b 20585b2 915 D MIL-DTL-3201 l(0S) 3.6.6 No fire. The ignition device shall not fire when one ampere is applied to the bridge circuit in accordance with 4.6.6. 3.6.7 AU fire. The ignition device shall fire when 3.0 + O. 1, - 0.0 amperes is applied the bridge circu
25、it in accordan= with 4.6.7. 3.7 Ballistic requirements. Ignition devices fiom each production lot, selected in accordance with 4.2, shall meet the foilowing requirements when subjected to the test prescribed in 4.6.1 1.1. Any ignition device failing to meet one or more requirements shall be classifi
26、ed as a defective unit and the lot represented rejected. 3.7.1 Maximum pressure. When fired in the test fixture of 4.6.11.1, each ignition device shall produce a maximum pressure between 1000 psi and 1900 psi. 3.7.2 Ignition delay. The time fiom application of fig current to the start of pressure ri
27、se shall be less than 0.025 seconds. 3.73 Misfire. There shaii be no misfres. 3.7.4 Quality characteristics. M&um pressure and ignition delay shall be a quality characteristics for statistical process control. Sampling and control charting shall be conducted by the contractor in accordance with esta
28、blished procedures. 3.8 Statistical process control. Statistical process control in accordance with ANSI Z1.1,21.2, and 21.3 shall be requid for quality characteristics cited in this specification (explosive charge weights, ignition delay and maximum pressure). In adition to other requirements for t
29、his specification, only ballistic samples from lots that can demonstrate a state of statistical control shall be submitted for lot acceptance ballistic testing. Samples fiom lots that cannot demonstrate statistical control shall not be submitted for lot acceptance baliistic tests. 3.9 Workmanship. I
30、gnition devices shall be constructed and finished in a manner assuring compliance with requirements of this specification and associated drawings. Particular attention should be directed to dimensions, fishes, and seals. 4. VERIFICATION 4.1 Classification of inspections. a. First article inspection
31、(see 4.3.1) b. Conformance inspection (see 4.5) 4.2 Sampling. Unless otherwise specified, and when applicable, the sampling plans and procedures used in the determination of the acceptability of products submitted by a supplier shall be in accordance with the provisions of ASQC 21.4. Unless otherwis
32、e specified in the contract, order, or requisition, ail samples for test purposes shali be provided at the expense of the contractor. 4 Licensed by Information Handling ServicesMIL-DTL-3201 l(0S) 43 Lots. 43.1 First article inspection. Before entering into quantity production, an acceptable first ar
33、ticle sample of 120 ignition devices shall be prepared. This sample, manufactured using the same methods and procedures proposed for the production lot, is for the purpose of determinhg that the contractor, prior to starting production, is capable of producing items which comply with the technical r
34、equirements of the contract. One hundred nfteen of these ignition devices shall be expended in the tests below, and five more shall be retaine for investigative purposes. A first article sample acceptable for environmental and functional testing shall be defined as a sample which has met the rquirem
35、ents of 3.4 through 3.6.5 of this specification. The contractor shall deliver the ignition devices to the activity designated by the contrachg agency for test. First article sample acceptance shail consist of the tests described Table I. TABLE I. First article insiiection. No ignition device shall p
36、roduce results outside the limits set forth in 3.7 when fired in the test fixture of 4.6.11.1. Any quantity production prior to notification by the contracting agency of first article sample acceptability shall be at the contractors risk. The first article ignition devices will not be applied as a p
37、art of the quantity specified for delivery by the contract. 4.3.2 Production lot. Lot numbers shall be in accordance with MIL-STD-1168. Ignition devices required for ali destructive test purposes are randomly selected from the production lot and will not be applied as a part of the quantity specifie
38、d for delivery by the contract. Only primary components fiom a single lot shall 5 Licensed by Information Handling ServicesflIL-DTL-320LL m 9999306 2058564 798 m MIL-DTL-3201 l(0S) be used in a production lot of ignition devices. One primary component production lot may be used in more than one igni
39、tion device production lot. Ignition devices selected for the ballistic test shali be delivered to the activity designated by the contracting agency. The designated test activity shaii perform the ignition device tests and examinations listed in Table I to determine lot acceptance. 4.4 Classificatio
40、n of characteristics. The characteristics verified by the tests and examinations herein are classied as Critic4 Major or Minor in accordance with DOD-STD-2101. Tests and examinations that ven critical chanictens * tics are identied by the symbol (C) and major charactenstics by the symbol (M). The nu
41、mber following the Classification symbol indicates the serial number of test or examination. Tests and examinations which are not annotated with a classification code are classified minor. 4.5 Conformance inspection. Quality conformance inspection shall consist of verification of the characteristics
42、 classified on the drawings of Drawing DL844AS300 and the tests and examinations of Table II. TABLE II. Conformance inspections. see respective drawing) 4.5.1 Packing, packaging and marking. The inspector shall ascertain that the packing and packaging of the ignition devices and the container markin
43、gs conform to Section 5 of this specification. 4.6 Tests. 4.6.1 Visual inspection. Examine each ignition devitx produd and reject for deep dents or scratches, missing incomplete or excessive application of sealant, incorrect or illegible markings or other visible defects which might adversely affect
44、 ignition device installation or ballistic properties. 4.6.2 Leakage!. Each ignition device wiil be leak tested in a dry gas leak tester. Ignition devices which exhibit a leak rate in excess of lo5 cm3/sec of air at a pressure differential of one atmosphere shall be considered defective. Ignition de
45、vices which exhibit a leak rate in excess of that specified above shall be rejected. 4.6.3 Radiographic examination. Ali ignition devices shall be radiographically examined in accordance with ASTM E1742 for X-ray. The ignition device shall be positioned on their sides for the most revealing 6 Licens
46、ed by Information Handling ServicesflIL-DTL-320LL 9999906 2058565 b24 W MIL-DTL-3201 l(0S) exposure. Ail ignition devices shall be identified with serial numbers prior to examination. The ignition device serial numbers shall be in consecutive order beginning with the number O0 1 in each production l
47、ot. The ignition devices shall be arranged on trays or boards in consecutive numerical order, and each radiograph shall carry a permanent identification of the ignition devices displayed hereon. The radiograph identification shall include the complete lot number, as stamped on the ignition devices,
48、and the span of serial numbers displayed. Discontinuities in serial numbers shall be identified on the radiograph. Defective ignition devices found by the vendor shall be clearly identihi on the radiograph and those defectives removed from the production lot. The serial numbers shall be pen or ink s
49、tamped on the ignition devices wih approximately l/&inch-high characters. The serial numbers shall be located apart fiom the other ignition device markins. Each ignition device shall be X-rayed to confirm the presence and proper assembly of all parts. Any observable imperfections in assembly shall be cause for rejection. 4.6.4 Bridge circuit resistance. The bridge circuit resistance shali be measiired with a circuit that limits current to 25 milliamperes maximum and has an accuracy of 1 .O percent. Ignition devices which exhibit a bridge circuit resistance greater than 1.2
