1、MIL-DTL-32193 4 August 2005 DETAIL SPECIFICATION INITIATOR, EXPLOSIVE ACTUATED, JAU-29/A This specification 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 Defense. 1. SCOPE 1.1 Scope. The init
2、iator, explosive actuated, JAU-29/A converts explosive energy from a shielded mild detonating cord (SMDC) into ballistic gas energy used in the aircrew escape system of the TF-18 and TAV-8B aircraft. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections
3、3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet
4、 all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent spe
5、cified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-I-8500 Interchangeability And Replaceability Of Component Parts For Aerospace Vehicles MIL-P-20444 Primer, Percussion - Parts For And Loading - Assem
6、bling And Packing MIL-D-21625 Design And Evaluation Of Cartridges For Cartridge Actuated Devices AMSC N/A FSC 1377 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. INCH POUND Comments, suggestions, or questions on this document should be addressed to Commander, India
7、n Head Division, Naval Surface Warfare Center, Technical Information Branch (Code 4230), 101 Strauss Avenue, Indian Head, Maryland 20640-5035, or emailed to amanda.pennnavy.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Onl
8、ine database at http:/assist.daps.dla.mil/ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32193 2 DEPARTMENT OF DEFENSE STANDARDS MIL-STD-464 Electromagnetic Environmental Effects Requirements For Systems (Copies of these documents are avail
9、able online at http:/assist.daps.dla.mil/ or from the Standardization Documents Order Desk, Building 4D , 700 Robbins Avenue, Philadelphia PA 19111- 5094.) 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part o
10、f this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation or contract. DRAWINGS Naval Air Systems Command 850AS801 Ballistic Test Fixture 850AS803 Vibration Test Fixture (Application for copies should be addressed to Commanding Officer
11、, Naval Surface Warfare Center, Indian Head, Technical Information Branch (Code 4230), Indian Head, MD 20640.) 2.3 Non-Government publications and drawings. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents ar
12、e those cited in the solicitation or contract AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM E1742 Standard Practice for Radiographic Examination (Copies of this document are available online at http:/www.astm.org/ or from the American Society for Testing and Materials Customer Service, 100
13、Barr Harbor Drive, West Conshohocken, PA 19428-2959.) SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) SAE AS 5604 Compass, Magnetic, Pilots Standby (Copies of this document are available online at http:/www.sae.org/, or from the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, Pennsylvania
14、, United States, 15096-001.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, superseded applicable laws and regulations unless a specific exemption ha
15、s been obtained. 3. REQUIREMENTS 3.1 First Article sample. When more than 12 months have elapsed since production of the latest accepted lot, a first article sample of 60 initiators that have met the requirements of 3.2 through 3.5 shall be required. The sample shall be tested as specified in paragr
16、aph 4.3. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32193 3 3.2 Design and construction. The JAU-29/A initiator design and construction shall be identical to that subjected to qualification testing and approved for service use. 3.3 Envel
17、ope and installation. The dimensions and configuration of the JAU-29/A initiator shall be as shown on DWG 850AS139. All parts having the same vendors item number shall be functionally and dimensionally interchangeable in accordance with MIL-I-8500. 3.4 Primary components. The M42C1-979 (PA101) percu
18、ssion primer used in the JAU-29/A initiator shall be manufactured and tested in accordance with MIL-P-20444 (primer, percussion - parts for and loading - assembling and packing). The primers shall be from lots manufactured within a year from the date of cartridge loading. All explosive materials use
19、d in the manufacture of this item are considered primary components. Only primary components from a single lot will be used in a cartridge lot. 3.5 Inspection 3.5.1 Cartridge inspection. 3.5.1.1 Visual inspection. All cartridges manufactured under contract shall be visually inspected and screened fo
20、r defects as outlined in 4.4. 3.5.1.2 Leakage. Cartridges shall not exhibit a leak rate in excess of 1 10-5 cubic centimeters per second of air when tested in accordance with 4.5. 3.5.1.3 Radiographic inspection. Cartridges shall be free of imperfections in assembly when examined radiographically in
21、 accordance with 4.6. 3.5.2 Initiator inspection. 3.5.2.1 Visual inspection. All in itiators manufactured under contract shall be visually inspected and screened for defects as outlined in 4.4. 3.5.2.2 Radiographic inspection. Initiators shall be free of imperfections in assembly when examined radio
22、graphically in accordance with 4.6. 3.5.2.3 Demagnetization. Initiators shall not deflect an approved pilots standby compass more than three degrees in either direction when passed in front of the compass when tested in accordance with 4.7. 3.5.2.4 Electrical bonding resistance. Initiators shall not
23、 exhibit an electrical bonding resistance in excess of 0.0025 ohm when tested in accordance with 4.8. 3.6 Ballistic requirements. Initiators from each first Article and production lot shall meet the requirements listed below when subjected to the test prescribed in 4.10. 3.6.1 Maximum pressure. The
24、upper (u) and lower (l) limits for maximum pressure (psig) when fired over the temperature range from 65 F to +200 F shall be u = 5100 psig and l = 3850 psig, see 4.10.1.1. 3.6.2 Ignition delay. The limit for ignition delay shall not be greater than 5 milliseconds. See 4.10.1.2. Provided by IHSNot f
25、or ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32193 4 3.6.3 Time to maximum pressure. The limit for time to maximum pressure (milliseconds) when fired over the temperature range from 65 F to +200 F shall not be greater than 20 milliseconds. See 4.10.1.3. 3.6.4
26、 Misfire. There shall be no misfires. See 4.10.1.4. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First Article inspection (see 4.3). b. Conformance inspection (see 4.4 through 4.10). 4.2 Sampling. Samples for ballistic
27、test shall be selected from the production lot in accordance with Table I. Reduced sample size is recommended after 10 coinsecutive acceptable lots. Sample plan to be used will be normal unless otherwise specified in the contract. An additional six initiators shall be provided with each test sample
28、for investigative purposes. Sample initiators and initiators made available for investigative purposes shall not be applied as part of the quantity specified for delivery by the contract or order. The production lot size shall be 500 maximum initiators. Table I. Sample sizes for ballistic test. Lot
29、Size Normal Sample Size Reduced Sample Size 2-8 2 2 9-15 3 2 16-25 5 3 26-50 8 5 51-90 13 5 91-150 20 8 151-280 32 13 281-500 50 20 4.3 First Article sample. Before entering into quantity production, an acceptable first article sample of 60 initiators shall be prepared using the same procedures and
30、methods proposed for the production lot. Fifty-four of these initiators shall be expended in the tests listed herein and six shall be retained for investigative purposes. A first article sample acceptable for functional and environmental testing shall be defined as a sample which has met the require
31、ments of paragraphs 3.2 through 3.5 of this specification. The contractor shall deliver the initiators to the activity designated by the contracting agency for tests. first article sample inspection shall consist of the following tests: temperature and humidity cycling (18), vibration (6) shock (6),
32、 65 F 5 F (12), and 200 F 5 F (12). The numbers in parentheses denote the number of initiators allotted for each test. All tests are done as prescribed in MIL-D-21625 except vibration which is prescribed in 4.9 herein. The initiators shall be fired as described in 4.10 and shall meet the functional
33、requirements referenced in 3.6. Any quantity production prior to notification by the contracting agency of first article sample acceptabilit y shall be at the contractors risk. The first article initiators will not be applied as part of the quantity specified for delivery by the contract. Provided b
34、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32193 5 4.4 Initiator and cartridge visual inspection. Visually examine all cartridges prior to initiator assembly and assembled initiators. Reject those with inadequate or illegible descriptive markings
35、or serial numbers, dents, deep scratches, or other defects which may prevent proper installation or function. 4.5 Cartridge leak test. Each cartridge produced under contract shall be leak tested in a dry gas leak tester to determine conformance to 3.5.1.2. Units which exhibit a leak rate in excess o
36、f 1 x 105 std. CC/SEC of air at a pressure differential of 1.0 0.1 atmosphere shall be rejected. 4.6 Radiographic examination. 4.6.1 Cartridge examination. All cartridges shall be arranged on trays or boards in consecutive numerical order and each radiograph shall carry a permanent identification of
37、 the cartridge displayed thereon. The cartridges shall be positioned to give the most revealing cross-section of the cartridge. Defective cartridges found by the vendor shall be clearly identified on the radiographic plate and those defective shall be removed from the production lot. Radiographs or
38、copies of the entire production lot shall accompany the ballistic sample to the activity conducting the production lot acceptance test. (see 6.2). 4.6.1.1 X-ray examination. Each cartridge shall be x-rayed, prior to initiator assembly, in accordance with ASTM E1742, to confirm the presence and prope
39、r assembly of all parts. Any observable imperfections in assembly shall be cause for cartridge rejection. 4.6.1.2 N-ray examination. Each cartridge shall be n-rayed prior to initiator assembly, to confirm the presence of the propellant non-metal parts, no foreign hydrogenous materials and the proper
40、 assembly of pyrotechnic/non-metallic materials. Any observable imperfection in assembly shall be cause for cartridge rejection. 4.6.2 Initiator examination. All initiators shall be identified with serial numbers prior to radiographic examination. The initiators shall be arranged on trays or boards
41、in consecutive numerical order and each radiograph shall carry a permanent identification of the initiators displayed thereon. The initiators shall be positioned to give the most revealing cross-section of the initiator. The radiograph identification shall include the complete lot number, as stamped
42、 on the initiators, and the span of serial numbers displayed. Discontinuities in serial numbers shall be identified on the radiographic plate. Defective initiators found by the vendor shall be clearly identified on the radiographic plate and those defective shall be removed from the production lot.
43、Radiographs or copies of the entire production lot shall accompany the ballistic sample to the activity conducting the production lot acceptance test. (see 6.2). 4.6.2.1 X-ray examination. Each assembled initiator shall be x-rayed in accordance with ASTM E1742, to confirm the presence and proper ass
44、embly of all parts. Any observable imperfections in assembly shall be cause for initiator rejection. 4.7 Demagnetization. Each initiator shall be moved past a pilots standby compass face (in accordance with SAE AS5604) by placing the initiator six inches from the compass face, in a north-south horiz
45、ontal position with the compass set in a east-west heading. The initiator and the compass shall be placed at the same height from the floor. The initiators shall be moved past the compass face in a longitudinal direction for its entire length, rotated 90 degrees in the horizontal position about its
46、longitudinal axis, and moved Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32193 6 back past the compass face. This procedure shall be repeated for each 90 degrees rotation of the initiator. The initiator shall be acceptable if the requirem
47、ents of 3.5.2.3 are met. 4.8 Electrical bonding resistance. Each initiator shall be tested using a four point probe milliohmmeter in accordance with MIL-STD-464. The electrical bonding resistance shall be measured between the following points on the initiator: A. The thread of the inlet SMDC port an
48、d the thread of the outlet fitting. B. The mounting lugs and the thread of the outlet fitting. C. The thread of the inlet SMDC port and the mounting lugs. The initiator shall be acceptable if the requirements of 3.5.2.4 are met. 4.9 Vibration test. 4.9.1 Non-gunfire vibration. The initiators shall b
49、e mounted in the vibration test fixture NAVAIR drawing no. 850AS803 for the JAU-29/A initiator. The non-gunfire vibration test shall be performed on all six initiators mounted on the test fixture at the same time and one initiator shall be monitored for response during the test. The test specimens shall be exposed to the sinusodial vibration environment shown in Figure 1 and Table II with the frequency varying logarithmica
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