1、 INCH-POUND MIL-DTL-50714C (OS) 27 June 2004 SUPERSEDING MIL-DTL-50714B (OS) 1 December 1995 DETAIL SPECIFICATION INITIATOR, PROPELLANT ACTUATED, DELAY, M113 ASSEMBLY This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all Depa
2、rtments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the M113 Propellant Actuated Delay 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
3、 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 all specified req
4、uirements 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 specified herein. Unle
5、ss otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-A-2550 Ammunition, General Specification For MIL-A-8625 Anodic Coatings for Aluminum and Aluminum Alloys Comments, suggestions, or questions on this documen
6、t should be addressed to Commander, Indian Head Division, Naval Surface Warfare Center, Technical Information Branch (Code 4230), 101 Strauss Avenue, Indian Head, Maryland 20640-5035, or emailed to pennamih.navy.mil. Since contact information can change, you may want to verify the currency of this a
7、ddress information using the ASSIST Online database at www.dodssp.daps.mil. AMSC N/A 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-DTL-50714C (OS) 2 MIL-
8、D-50727 Delay Element Assembly MIL-H-25579 Hose Assembly Tetrafluoroethylene, High Temperature Power Plant, Aircraft MIL-DTL-50374 Initiator, Propellant Actuated, M104 Assembly MIL-DTL-50375 Initiator, Propellant Actuated, M104 Metal Parts Assembly MIL-P-19834 Plates, Identification, Metal Foil, Adh
9、esive-Backed (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or www.dodssp.daps.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government documents, drawings, and publications.
10、The following Government drawings form a part of this specification to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation (see 6.2). DRAWINGS Naval Surface Warfare Center, Indian Head (CAGE Codes 19200 and 19203) DL838AS163 Test Fixture, 6.5 Cubic
11、 Inch Closed Bomb 9280892 Box, Packing, Ammunition For Initiation, Delay (Gas - Subminiature) 9280893 Box, Fiberboard (Outer), Alternative, Packing Ammunition for Initiator, Delay (Gas -Subminiature) DL10551446 Initiator, Propellant Actuated, M104 Assembly 11731474 Initiator, Propellant Actuated, De
12、lay, M113 Assembly U.S. Air Force TPO F00-138-3770 Initiators (Application for copies should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Attn: Technical Information Branch (Code 4230), Indian Head, MD 20640-5035.) 2.3 Non-Government publications. The following doc
13、ument form a part of this 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
14、 issues of the documents cited in the solicitation (see 6.2). AMERICAN NATIONAL STANDARD INSTITUTE/AMERICAN SOCIETY FOR QUALITY ANSI/ASQ Z1.4 Sampling Procedures and Tables for Inspection by Attributes (Copies of this document are available online at http:/webstore.ansi.org/ansidocstore/default.asp,
15、 or from the American Society for Quality, PO Box 3005, 611 E. Wisconsin Ave., Milwaukee, WI 53201-4606.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50714C (OS) 3 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM E 1742 Inspection,
16、Radiographic (Copies of this document are available online at http:/www.astm.org/cgi-bin/SoftCart.exe/STORE/standardsearch.shtml?L+mystore+afpt6301+1062008944 or from the American Society for Testing and Materials Customer Service, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2.4 Order
17、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, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Fi
18、rst article. When specified in the contract or purchase order, a sample of bellows actuators shall be subjected to first article inspection (see 4.4 and 6.3) 3.2 Materials. All materials used in the manufacture of the initiators shall conform to the specifications referred to on the respective drawi
19、ngs unless specific approval in writing covering a departure therefrom has been obtained from the cognizant Navy 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. 3.3
20、 Primary components. For the purpose of this specification, the delay element (Drawing 11738753) and the M104 Propellant Actuated Initiator (Drawing 10551446) are defined as primary components. Only primary components from a single lot shall be used in a production lot of initiators. One primary com
21、ponent production lot may be used in more than one initiator production lot. 3.4 Ignition device. The ignition device shall conform to the applicable drawing and referenced specification. Prior to assembly into a retainer, the ignition device shall be visually examined and X-rayed. 3.4.1 Sensitivity
22、 test. The PVU-1/A Ignition Device, when assembled and crimped into an ignition device retainer, part no. 11731620, shall fire when drop tested at an energy level of 26.0 inch ounces and shall not fire when drop tested at an energy level of 4.0 inch ounces. 3.5 Breakaway torque. Each threaded joint
23、of the assembled initiator shall withstand a breakaway torque application of 400 inch pounds without loosening or deformation using the procedure of 4.5.3. 3.6 Residual magnetism. The initiator shall not deflect the indicator of the compass more than five degrees in either direction using the proced
24、ure of 4.5.4. 3.7 Functional. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50714C (OS) 4 3.7.1 Ballistics. Initiators loaded with accepted pyrotechnic components (II-A pellets, PVU-1/A Ignition Device, and delay element) and temperature co
25、nditioned shall produce values specified in table I. Pressure values shall be recorded in a 6.5-in3 closed bomb, Drawing 838AS163. TABLE I. Ballistic values. Temperature Pressure, psi (min) Ignition delay, sec (max) (see 6.3) -65 to -70F 300 0.300 0.150 65 to 75F 300 0.300 0.050 200 to 205? F 300 0.
26、300 0.150 3.7.1.1 Initiation. The initiator shall be fired by a source delivering an output energy equal to that of an M3A2 Initiator at the end of 15 feet of aircraft hose, size no. 4 in accordance with MS28741 at 70 5F. 3.7.2 No-fire. The initiator shall not fail to fire. 3.7.3 Mechanical failure.
27、 The initiator shall function without mechanical failure (see 6.2). 3.8 Leak rate. The assembled initiator, less the firing mechanism assembly (part no. 11731492) and the mounting bracket (part no. 11731624), shall withstand a 14 psi internal-external pressure differential with a maximum permissible
28、 leak rate of 1 x 105 cubic centimeters per second. 3.9 Workmanship. Workmanship shall be as specified on the applicable drawings, referenced specifications, and the following: 3.9.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions, porosity, or any other metal
29、 defect. 3.9.2 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. 3.9.3 Foreign matter. No part or assembly shall contain chips, dirt, grease, oil, rust, corrosion, or other foreign matter. 3.10
30、Mechanical properties. Mechanical properties required by the drawing shall be uniform throughout the part within specified tolerances. 3.11 Shear pin strength. The shear pin, after application of protective finish, shall shear when a load of 41 5 pounds is applied at the steady rate of 0.125 inch pe
31、r minute. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50714C (OS) 5 3.12 Protective finish. Protective finish shall be in accordance with the applicable specifications and drawings and shall apply to all surfaces of the component regardle
32、ss of contour. 3.13 Radiographic examination. Each ignition devic e assembly, retainer, each retainer and ignition device assembly, and each initiator assembly shall be radiographically examined for defects as specified in 4.4.3.8. 4. VERIFICATION 4.1 Classification of inspections. a. First article
33、inspection (see 4.3) b. Conformance inspection (see 4.4) 4.2 Inspection conditions. Inspections shall be in accordance with MIL-A-2550. 4.3 First article sample. 4.3.1 Initial production sample. At the beginning of regular production, a sample shall be submitted in accordance with contract requireme
34、nts and shall consist of 21 assembled initiators for ballistic tests, a quantity of ignition devices in accordance with 4.3.2 assembled and crimped into the retainer, 9 sets of unassembled components, one set of unplated components and 50 shear pins from the same lot of shear pins tested by the cont
35、ractor. The sample shall be subjected to the tests of 4.4.3. Test procedures shall be in accordance with 4.5. The sample shall be manufactured using the same materials, equipment, processes, and procedures as used in regular production. All parts and materials, including packaging and packing, shall
36、 be the same as used for regular production and shall be obtained from the same source of supply. 4.3.1.1 Submission. First article samples and ballistic acceptance test samples of ballistic assemblies shall be in accordance with their applicable specification. 4.3.1.2 Examinations and tests. After
37、examination and provisional acceptance at the source, the sample shall be inspected for all requirements of the drawings and specifications at a Government laboratory or such other facility specified in the contract. 4.3.1.3 Initial production failure. Failure of the sample to comply with the requir
38、ements of the drawings and specifications shall result in sample disapproval. 4.3.2 Sample size for sensitivity tests. The number of ignition devices, when assembled and crimped into the retainer, submitted for ignition device sensitivity tests shall be in accordance with table II. 4.4 Inspection pr
39、ovisions. 4.4.1 Lot. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50714C (OS) 6 4.4.1.1 Submission of product. Unless otherwise specified by the contracting activity, formation and identification of lots shall be in accordance with ANSI/AS
40、Q Z1.4. TABLE II. Sensitivity test sample size. Lot Size Ignition Device Sensitivity Sample Size 3 to 15 6 16 to 25 8 26 to 40 10 41 to 65 14 66 to 110 20 111 to 180 30 181 to 300 50 301 to 500 60 501 to 800 70 801 to 1300 80 over 1300 100 4.4.1.2 Size of lot. A lot shall consist of an identifiable
41、group of assembled units containing metal parts assemblies produced by a homogeneous process and loaded with acceptable explosive and pyrotechnic components. 4.4.2 Examination. One hundred percent examination shall be performed for all critical defects. Examination for major and minor defects shall
42、be performed in accordance with the classification of defects. Four power (4x) magnification may be used for inspection of such defects as burrs and foreign matter. When compliance with the applicable requirement is in doubt as a result of visual examination, the characteristic shall be measured or
43、gauged to determine applicability. All nonconforming material shall be rejected. 4.4.2.1 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 Gage 102 Concentricity o
44、f striker with body Gage 103 True position of shear pin hole with body Gage 104 Diameter of O-ring groove, min Gage Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50714C (OS) 7 105 Diameter of body, min Gage 106 Diameter of striker Gage 107
45、Length of striker, min Gage 108 Diameter of shear pin hole, max Gage 109 Depth of shear pin hole, max Gage 110 Width of O-ring groove Gage 111 Location of shear pin hole Gage 112 Permissible variation of O-ring groove Gage 113 Spherical radius of tip Gage 114 Metal defective Visual 115 Protective fi
46、nish inadequate or defective Visual 116 Burr or sharp corner, except where permitted Visual 117 Foreign matter 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
47、 Depth of slot Gage 207 Total length Gage 208 Length of body to O-ring groove Gage 209 Surface finish improper, except as otherwise classified Visual 4.4.2.2 Housing, Drawing 11731622, covering a detail of Drawing 11731492. Critical 1 Surface finish of cavity Gage Major 101 Pitch diameter of externa
48、l 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, max Gage 105 True position of pitch diameter of external thread with end flange Gage diameter 106 Concentricity of pitch diameter of internal thre
49、ad with large end Gage of center cavity 107 True position of pitch diameter of internal thread with center cavity Gage 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 Perpendicularity of striker face with center cavity Gage 112 Perpendicularity of striker face with internal thread on large end Gage Provided by IHSNot
