1、INCH-POUND MIL-DTL-50699B 25 February 2005 SUPERSEDING MIL-I-50699A 27 October 1993 DETAIL SPECIFICATION INITIATOR, PROPELLANT ACTUATED, JAU-2/A25 ASSEMBLY This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification cove
2、rs the requirements for the JAU-2/A25 Propellant Actuated Initiator Assembly (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4 or 5 of this specification. This section does not include documents cited in other sections of this specifi
3、cation 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 all specified requirements of documents cited in sections 3, 4 or 5 of this specification, whether or not they a
4、re 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 specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or co
5、ntract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-A-2550 Ammunition, General Specification For MIL-STD-1168 Ammunition Lot Numbering and Ammunition Data Card MS28741 Hose Assembly, Detachable End Fitting, Medium Pressure (Copies of these documents are available online at http:/assist.daps.dla.mil/ or
6、 from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Comments, suggestions, or questions on this document should be addressed to Commander, Indian Head Division, Naval Surface Warfare Center, Technical Information Branch (Code 4230), 101 Strau
7、ss 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 Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 1377 DISTRIBUTION STATEMENT A: Approved fo
8、r public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50699B 2 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a pa
9、rt of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DRAWINGS 838AS163 Test Fixture, 6.5 Cubic Inch Closed Bomb 9280894 Box, Fiberboard (Inner), Packing, Ammunition, For Initiator, (Gas-Subminia
10、ture) 9280895 Box, Packing, Ammunition, For Initiator, (Gas-Subminiature) 9280896 Box, Fiberboard (Outer), Alternative, Packing Ammunition, for Initiator, (Gas Subminiature) DL11731494 Initiator, Propellant Actuated, JAU-2/A25 Assembly (Application for copies should be addressed to: Commander, India
11、n Head Division, Naval Surface Warfare Center, Attn: Technical Information Branch (Code 4230), Indian Head, MD 20640-5035.) U.S. Air Force SPI-F00-138-3770 Initiators 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwis
12、e specified, the issues of these documents are 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 fo
13、r Testing and Materials Customer Service, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) AMERICAN NATIONAL STANDARD INSTITUTE/AMERICAN SOCIETY FOR QUALITY ANSI/ASQ Zl.4 Sampling Procedures and Tables for Inspection by Attributes ANSI/ASQ A8402 Quality Management and Quality Assurance Voca
14、bulary (Copies of these documents are available online at http:/webstore.ansi.org/ansidocstore/default.asp, or from the American Society for Quality, PO Box 3005, 611 E. Wisconsin Ave., Milwaukee, WI 53201-4606.) 2.4 Order of precedence. In the event of a conflict between the text of this document a
15、nd the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. Provided by IHSNot for ResaleNo reproduction or networkin
16、g permitted without license from IHS-,-,-MIL-DTL-50699B 3 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.4. 3.2 Conformance to documents. The JAU-2/A25 initiator covered by this specification shall b
17、e manufactured in accordance with DL11731494. 3.3 Materials. All materials used in the manufacture of the initiators shall conform to the specifications referred to on the respective drawings unless specific approval in writing covering a departure therefrom has been obtained from the cognizant Navy
18、 design activity 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 Components. 3.4.1 Primary components. For the purpose of this specification, the PVU-1/A Ignition Device (Drawi
19、ng 851AS110) is defined as a primary component. Only primary components from a single lot shall be used in a production lot of initiators; however, one primary component production lot may be used in more than one initiator production lot. 3.4.2 Ignition device. The ignition device shall conform to
20、the applicable drawing and reference specification. Prior to assembly into an initiator, the ignition device shall be visually examined in accordance with 4.5.2.5 and radiographically examined for defects as specified in 4.6.6.1. The ignition device shall be manufactured within 2 years of assembly i
21、nto the ignition device retainer (11738408) or recertified within 12 months of assembly into the ignition device retainer. 3.4.3 Ignition device sensitivity. The PVU-1/A Ignition Device, when assembled and crimped into an ignition device retainer (Drawing 11738408), shall fire when drop tested at an
22、 energy level of 25.48 inch ounces, maximum (see 4.5.3.6). 3.4.4 Leak test. Each retainer and ignition device assembly, Drawing 11738409, and the M104 propellant actuated initiator, P/N 10551446, shall withstand 14 psi internal-external pressure differential with a maximum permissible leak rate of 1
23、 x 10-4 cubic centimeters per second of air (see 4.5.3.5). 3.5 Breakaway torque. Each threaded joint of the assembled initiator shall withstand a breakaway torque application of 400 inch-pounds without loosening or deformation (see 4.5.3.4). 3.6 Residual magnetism. The initiator shall not deflect th
24、e indicator of the compass more than five degrees in either direction (see 4.5.3.3). 3.7 Radiographic examination. Each ignition device assembly, retainer and ignition device assembly, and initiator assembly shall be radiographically examined for defects (see 4.6.6). 3.8 Functional. Provided by IHSN
25、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50699B 4 3.8.1 Ballistics. Initiators loaded with accepted pyrotechnic components (II-A pellets and PVU-1/A ignition device) and temperature conditioned shall produce pressure values specified in table I. Press
26、ure values shall be recorded in a 6.5 cubic inch closed bomb, Drawing 838AS163. 3.8.1.1 Initiation. The initiator shall be fired by a source delivering an output pressure of 700 +25, -0 pounds per square inch gage (psig) at 70 5F. 3.8.2 Misfires. There shall be no misfires. 3.8.3 Mechanical failures
27、. The initiator shall function without mechanical failure (see 6.5.2). TABLE I. Pressure values. Temperature (F) Pressure (psig) Ignition delay (see 6.5.1) milliseconds, max Minimum -60 to -70 300 10 65 to 75 300 10 195 to 205 300 10 3.9 Shear pin strength. The shear pin, after application of protec
28、tive finish, shall have a single shear when a load of 41 5 pounds is applied at the steady rate of 0.125 inch per minute (see 4.5.3.1). 3.10 Protective finish. Protective finish shall be in accordance with the applicable specifications and drawings and shall apply to all surfaces of the component re
29、gardless of configuration (see 4.5.3.2). 3.11 Workmanship. Initiators shall be free of cracks, splits, or other defects which might prevent proper mating with connecting parts or proper functioning of the device. 3.11.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inc
30、lusions, porosity, or any similar defect. 3.11.2 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. 3.11.3 Foreign matter. No part or assembly shall contain chips, dirt, grease, rust, corrosion,
31、or other foreign matter. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4). b. Conformance inspection (see 4.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without
32、 license from IHS-,-,-MIL-DTL-50699B 5 4.2 Quality assurance terms and definitions. Reference shall be made to ANSI/ASQ A8402 to define the quality assurance terms used. 4.3 Inspections. Inspections shall be in accordance with MIL-A-2550 and ASTM E1742. 4.3.1 Inspection conditions. Unless otherwise
33、specified in the contract or purchase order (see 6.2), inspection conditions shall be as follows: a. Temperature: Room ambient 20 to 25 C (68 to 77 F) b. Altitude: Sea level c. Humidity: 50 percent relative, maximum d. Atmospheric: 14.7 psia 4.4 First article inspection. At the beginning of regular
34、production, a sample shall be submitted in accordance with contract requirements and shall consist of 21 assembled initiators for ballistic tests, a quantity of ignition devices in accordance with table II assembled and crimped into the retainer, five metal parts assemblies, fifty shear pins, and ni
35、ne sets of unassembled parts for visual and dimensional examination and tests, and one set of unassembled components without plating or final protective finish. The sample shall be manufactured using the same materials, equipment, processes, and procedures as used in regular production. All parts an
36、d materials, including packaging, shall be the same as used in regular production and shall be obtained from the same source of supply. 4.4.1 Examination, tests, and facility. After provisional acceptance at source, the sample shall be inspected for all requirements of the drawings and specification
37、s at a Government laboratory or other such facility specified in the contract (see 6.2). 4.4.2 Sample size for prime r sensitivity. The number of ignition devices, assembled and crimped into the retainer, submitted for ignition device sensitivity tests shall be in accordance with table II. TABLE II.
38、 Ignition device sensitivity. Lot Size Sample Size 3 to 15 10 16 to 25 10 26 to 40 10 41 to 65 10 66 to 110 10 111 to 180 15 181 to 300 25 301 to 500 30 501 to 800 35 801 to 1300 40 Over 1300 50 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL
39、-50699B 6 4.4.3 Temperature conditioning for ballistic test. The sample shall be temperature conditioned and tested to determine compliance with 3.8.1. The sample for firing shall be conditioned to the temperatures specified in table III. TABLE III. Temperature conditioning for first article sample.
40、 Temperature (F) Not vibrated Vibrated -60 to -70 3 4 65 to 75 3 4 195 to 205 3 4 4.4.4 First article failure. Failure of the sample to comply with the requirements of the drawings and specifications shall result in first article sample disapproval. 4.5 Quality conformance inspection. 4.5.1 Lot. 4.5
41、.1.1 Submission of product. The product shall be submitted in accordance with ANSI/ASQ Z1.4. 4.5.1.2 Lot size. The production lot size shall be as specified in the contract (see 6.2). 4.5.2 Examination. One hundred percent examination shall be performed for all critical defects. Examination for majo
42、r 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 examination, the characteris
43、tic shall be measured or gauged to determine acceptability. All nonconforming material shall be rejected. 4.5.2.1 Pin, Firing, Drawing 11738410, covering a detail of Drawing 11731492. Characteristics Defect Method of Inspection Critical None defined Major 101 True position of O-ring groove with body
44、 Gage 102 Concentricity of striker with body Gage 103 True position of shear pin hole with body Gage 104 Diameter of O-ring groove, min Gage 105 Diameter of body, min Gage 106 Diameter of striker Gage 107 Length of striker, min Gage 108 Diameter of shear pin hole, max Gage 109 Depth of shear pin hol
45、e, max Gage 110 Width of O-ring groove Gage Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50699B 7 111 Location of shear pin hole Gage 112 Permissible variation of O-ring groove Gage 113 Spherical radius of tip Gage 114 Metal defective Visu
46、al 115 Protective finish inadequate or defective Visual 116 Burr or sharp corner, except where permitted Visual Minor 201 Diameter of O-ring groove, max Gage 202 Diameter of body, max Gage 203 Diameter of shear pin hole, min Gage 204 Depth of shear pin hole, min Gage 205 Width of slot Gage 206 Depth
47、 of slot Gage 207 Total length Gage 208 Length of body to O-ring groove Gage 209 location of marking Visual 210 Marking missing, incorrect, or illegible Visual 211 Surface finish improper, except as otherwise classified Visual 4.5.2.2 Housing, Drawing 11731622, covering a detail of Drawing 11731492.
48、 Characteristics Defect Method of Inspection Critical 1 Metal defective Visual 2 Surface finish of cavity Gage Major 101 Pitch diameter of external thread, min Gage 102 Major diameter of external thread, min Gage 103 Pitch diameter of internal thread, max Gage 104 Minor diameter of internal thread,
49、max Gage 105 True position of pitch diameter of external thread with end Gage flange diameter 106 Concentricity of pitch diameter of internal thread on large Gage end with center cavity 107 True position of pitch diameter of internal thread with center Gage cavity 108 True position of striker hole with center cavity Gage 109 True position of shear pin hole with center cavity Gage 110 True position of flats with internal thread Gage 111
