1、 MIL-DTL-82953A 9999906 2053635 437 I INCH-POUND I MILDTL82953A(OS) 8 Aumt 1997 SUPERSEDING MDLDTG82953 29 May 1996 DETAIL SPECIFICATION INITIATOR, JAU-22/B This specification b appmd for use by the Naval Sea System Command, Department of the Navy, and Y available for use by all Depariments andAgenc
2、ies of the Depariment of Defense. 1. SCOPE 1.1 Scope. This spication covers the requirements for the JAU-2uB initiator. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specie in sections 3 and 4 of this specification. This section does not include documents cited in oth
3、er sections of this specification or recommended for additionai infdon or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specied requirements documents specified in sections 3 and 4 of this specicaion, whehe
4、r or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specincations, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the iss
5、ue of the Deparnent of Defme Index of Specifications and Standards (DODISS) and supplements hereto, cited in the solicitation (see 6.2). STANDARDS MILITARY MPSTD-8 10 Environmental Test Methods and Engineering Guidelines DOD-STD-210 1 ClassifiCaton of Characteristics (Unless otherwise indicated, cop
6、ies of Mili- standards are available from: Standarktion Dacuments Order desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) Beneficial camments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document huid be addressed to: Commander,
7、 Iadian Head Division, Naval Surface Warfare Center, Standardization Branch (Code 8420), 101 Strauss Avenue, Indian Head, MD 20640-5035, by using the Standadkation Document improvement Proposai (DD Form 1426) appearing at the end of this document or by sending a letter. AMSC N/A FSC 1377 DISTRIBUTIO
8、N STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL8295 3A(OS) 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings
9、, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in he solicitation. SPECIFICATIONS Naval Sea Svstems Command (CAGE Code 5371 1) WS 13986 Propell&, Sheet Stock,NOSOL-318 (Applicaim for copies should be addressed to
10、 the Commander, Indian Head Division, Naval Surface Warfare centea, DataReview and Control Branch (Code 8410P), 101 Strauss Avenue, Indian Head, MD 20640-5035.) DRAWINGS Fwd Air svstems camm and (CAGE Code 300031 DL298AS116 DL838AS123 DL844AS275 838AS107 83 8AS 139 WAS276 WAS278 844AS28 1 844AS285 8
11、44AS288 844AS289 Closed Chamber Assembly Closed Bomb Assembiy for Testing Ignition Elemens hitiator, JAU-22B Assembly Test Fixture, Lock Shut Carbridge, Ignition Element Cap and Ignition Element Assembly Filter and Chamber Assembly Charge Holder, Loaded Assembly Ignition Element, Loaded Assembly Hea
12、der Glass Sealed Assembly Propelant, NOSOL (Application for copies should be addressed to the Commander, Indian Head Division, Naval Surf. Warfare chter, DataReview and Control Branch (Code 8410P), 101 Strauss Avenue, Indian Head, MD 20640-5035.) 2.3 Non-Government publications. The following docrmi
13、ents form a part of this document to the extent specified berein. Unless otherwise specifed, the issues of the documents which are DOD adopted are those listed in the issue of DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issue
14、s of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTME 1742 Standard Practice for Radiographic Examinati on (Application for copies of AST& should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Cons
15、hohocken, PA 19428-2959.) AMERICANNATIONAL STANDARD ANSUASQC 21.4 Sampling Procedures and Tables for Inspection by Atibutes 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-? , (Application for copies should be addressed to the American Society for
16、Quality Control, PO Box 3005,611 E. Wisconsin Ave., Milwaukee, WI 532014606. 2.4 Order of precedence. In the event of a conflct between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however supersedes applicable laws
17、and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specifed (see 6.2), a sample shall be subjected to rst article inspection in accordance with 4.2. 3.2 Materials. AU materials used in the manufixture of the initiators shall conform sicty with the
18、specifications referenced on the respective Naval Air Systems Command drawings unless specific approval in writing covering a departure therehm has been obtained from the Navy cognizant field activity for initiators prior to manufacture. When alternate materials or mehods of initiator manufacture ar
19、e specified on the drawings, the bidders selection shall be clearly stated in the proposal. 3.3 Primary components. For the purpose of this specification the ignition element loaded assembly (Drawing 844AS285) and the NOSOL flake and propellant (WS 13986 and Drawing 844AS289) are defined as primary
20、components (see 3.3.1 and 3.3.2). 3.3.1 Ignition element loaded assembly. The ignition element used in the JAU-2243 initiator shaii be in accordance with Drawing 844AS285 and loaded as specified therein. As a minimum the requirements of 4.7.5.3 shall be met. 333 NOSOL propellant. 33.2.1 Quantity. Al
21、l propelant charges shail be as specified on Drawing 844AS28 1. All propellant charges shall be verified by weight 100 percent. 3.3.2.2 NOSOL flake. The NOSOL flake shall be in acwrdance with WS 13986 and Drawing 844AS28 1 and loaded as prescribed therein. NOSOL flake charges shall be determined by
22、weight rather than by volume measrirementS. 3.3.23 NOSOL propellant. The NOSOL propellant, conforming to Drawing 844AS289 and WS 13986, shall be loaded as specified on Drawing 844AS281. The NOSOL propellant shall exhibit no evidence of decomposition. 3.4 Environmental Tests. 3.4.1 Shock The initiato
23、rs sha withstaud shock conditions as specified in 4.2.1.1. After being subjected to the shock test, the initiators shall meet the nondestructive test requirements and the design performance requirements when test fired. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without l
24、icense from IHS-,-,-3.4.2 Six-foot drop. To ensure safety of handiing and installation, the initiator shall not fire when dropped from a height of 6 feet as specified in 4.2.1.2. After being subjected to the six-foot drop test, the initiators shall meet the nondestructive test requirements and the d
25、esign perfonname requirements when test fired 3.4.3 Vibration. The initiators shall wihstand vibration conditions as specified in 4.2.1.3. After being subjected to the vibration test, the initiators shall meet the nondestructive test requirements of 3.6 and 3.7, and the design performance requiremen
26、ts when test fire. 3.5 Visual inspection. initiators shall be fiee of the following visible defects: burrs, dents, deep scratches, cracks, illegible markings, corrosion, foreign matter, nonmdormity of the protective hish, incomplete or damaged threads, and other defects which wuid adversely affect i
27、nstallation or baliistic performance (see 4.7.1). 3.6 Radiographic examination. Initiators shall be fiee of imperfections in components of assembly as verined by radiographic exambtion of all first article and production test samples (see 4.7.2). 3.7 Bridge circuit resistance. The bridge circuit res
28、istance of each completely assembled initiator, when measured electrically as specified in 4.7.3, shall be 1.1 ohms f 0.15 ohms. 3.8 Breakaway torque test. The chamber and cap of the assembled initiator shall withstand a breakaway torque application of 50 f 5 ft-lb without loosening or deformation (
29、see 4.7.4). 33 Ballistic requirements. Initiators from each rst article and production lots, selected in accordance with 4.8.1, shali meet the requirements listed below when subjected to the test prescribed in 4.8.2. Any initiator which fails to meet one or more requirements shall result in rejectio
30、n of the lot represented. 39.1 Pressure. The upper limit of pressure shall be 1650 psi and the lower limit 1050 psi. 3.9.2 Ignition time. The time between the application of firing current to the initiator and the start of pressure rise in the chamber of the text fxture shall not exceed 0.050 second
31、 39.3 Misfire. The initiator shaii fre when proper firing energy is applied (see 4.8.2). 3.10 Lock shut requirements. Jnitiators fiom each first article sample and production lot, selected in accordance with 4.2 and 4.8.1, shall exhibit no mechanical failure, including the breakaway torque and gas v
32、enting, when subjected to the test prescribed in 4.8.3. 3.11 Packaging and marking. The packaging of initiators and the container markings shall be in accordancewithsection5. 3.12 Workmanship. Jnitiators shall be construd and nished in a -er to assure compliance with ali requirements of this specica
33、tion. Particuiar attention should be directed to dimensions, fishes, sealants, and assembly operations. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-DTL-82953A 9999906 2052639 082 Cap & ignition assembly Header & glass assembly Radiographic
34、examination Bridge circuit resistance 4. VERIFICATION 5 4.7.5 3 4.7.6 4647722 4.7.2 4647722 + 4.7.3 + 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2) b. Production inspection (see 4.3) 4.2 First article
35、inspection. Before entering into quantity production, a first article sample of 32 initiators, 5 cap and ignition element assemblies, and 3 header and glass seal assemblies shall be prepared, see table I. Additional initiators, as specified in the contracc shall be retained for investigative purpose
36、s. A first article sample acceptable for environmental and functionai testing shall be defined as a sample which has met the requirements of 3.2 through 3.11 of this specification. The failure of any initiator to meet the acceptance requirements as stated above shall cause rejection of the first art
37、icle sample. Any quantity production prior to notifmtion by the contracting agency of preproduction sample acceptability shall be at the contractors IiSk TABLE I. First article insmtion. way torque test I I II Ballistic test at -65 f 5F i I I 171 I I I I I I 4.8.2 II 200 70*5?F1416141 f 5F 171 I I I
38、 I I I I I I I I I I I I 11 LockShut at -65 f 5F i I I I I I I I I 4.8.3 II Retained samples, see contract 4.2.1 Environmental Tests. 42.1.1 Shock This test shall be conducted in accordance with Method 516.4 Procedure 1 of MIL-STD-810C. The shock pulse wave form shall be terminal peak sawtooth. The
39、peak amplitude shall be 20g and the duration shall be 11 mec. After the shock test has been completed, the initiators shall be subjected to the nondestructive tests and fired per table I. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-DTL-829
40、53A m 9999906 2053640 AT4 m 4.2.1.2 Six-foot drop. Three initiators shali be dropped onto a 2-inch-thick (minimum) steel plate embeded in concrete to impact as follows: (1) one nose up, (2) one nose down, and (3) one horizontal. A new initiator shall be used for each drop. No device shall fire durin
41、g this test. After the drop test has been complete, the initiators sha be subjected to the mndve tests and fired per table 1. 4.2.13 Vibration. Initiators shall be subjected to vibration test in accordance with MIL-STD-810Cy figure 514.2-2, curve H (see 3.4.3). 43.13.1 Procedure. a n t Q P J f 8 P i
42、 Veri& that the vibration test fixture does not have any resonant vibration frequency between 5 and 2000 Hz. See Figure 1. FIGURE 1. Vibration H-curve. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-b. C. d e. f. g- Secure initiators into the vibr
43、ation test fixture using 45 f 3 inch pounds. Anti-seize compound will be applied to the fixture threads prior to installation of the initiators. The hree mutually perpendicular axes will be used for vibration testing. Vibration time wiil be 1 hour per axis per temperature for a total of 9 hours. Per
44、fom sinusoidal vibration cycling at 70F for 1 hour with the ?equency varying logarithmicaily fiom 5 to 2000 Hz and return to 5 Hz in approximately 20 minutes to the levels. Continue this untii 1 hour of cycling has been completed. After completion of the 1-hour cyciing period the vibration furture w
45、il be rotated 90 degrees so the initiators are positioned in a different axis than in step c. The initiators in this new axis position will then be vibrated per step c for 1 hour at 70F. After completion of the second 1-hour cycling period the vibration fixture wili again be rotated 90 degrees so th
46、at the initiators are positioned in a different axis than in step c or d. The initiators in this new axis position will then be vibrated per step c for 1 hour at 70F. After completion of three 1-hour cyciing periods (1 hour per axis) at 70F the procedure outlined in steps c through e will be repeate
47、d with the temperature at 200F in lieu of 70F. Afier completion of three 1-hour cycling periods (1 hour per axis) at 200F the procedure outlined in steps c through e will be repeated with the temperature at - 65OF in lieu of 200OF. 43 Production inspection. Inspection lot dehition, formation, and si
48、ze shall be in accordance with ASQC 21.4. Unless otherwise specified in the contract, the minimum and maximum production lot sizes shall be 1201 initiators and 10,000 initiators, respectively. Ballistic test sample size shall be in accordance with 4.8.1. 4.4 Classification of characteristics. The ch
49、aracteristics verified by the tests and examinations herein are classified as critical, major or minor in accordance with DOD-STD-2 10 1. Tests and examinations that ven critical charactenstics are identifed by the symbol (C) and major characteristics by the symbol 0. The number following the classification symbol indicates the serial number of test or examination. Tests and examinations which are not annotat& w
