1、 MIL-DTL-50700A (OS) 18 October 2005 SUPERSEDING MIL-I-50700 (MU) 23 December 1970 DETAIL SPECIFICATION INITIATOR, PROPELLANT ACTUATED, JAU-2/A25 METAL PARTS ASSEMBLY This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specifi
2、cation covers Initiator, Propellant Actuated, JAU-2/A25, Metal Parts Assembly. The assembly will ultimately be loaded and used in conjunction with other propellant actuated devices in aircrew emergency escape systems. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are spec
3、ified in sections 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 th
4、at they must meet all specified requirements of documents cited in sections 3, 4 or 5 of this specification, whether or not they are listed. 2.2 Government Document. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to
5、 the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-A-2550 Ammunition and Special Weapons, General Specification for AMSC N/A FSC 1377 DISTRIBUTION STATEMENT A: Approved for public relea
6、se; distribution is unlimited. INCH POUNDComments, suggestions, or questions on this document should be addressed to Commander, Indian Head Division, Naval Surface Warfare Center, Technical Information Products Branch (Code E143), 101 Strauss Avenue, Indian Head, Maryland 20640-5035, or emailed to a
7、manda.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/ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50700A 2
8、DEPARTMENT OF DEFENSE STANDARDS MIL-STD-413 Visual Inspection Guide for Rubber O-Rings (Copies of these documents are available 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
9、 documents, drawings, and publications. The following other Government documents, drawings, and publications 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 contract. DRAWINGS MUNITIONS COMM
10、AND D11738406 Initiator, Propellant Actuated, JAU-2/A25, Metal Parts Assembly D10551447 Initiator, Propellant Actuated, Metal Parts Assembly C9252573 Carton, Packing, Ammunition for Initiator, M113 C9252574 Box, Packing, Ammunition for Initiator, M113 (Copies of specifications, standards and drawing
11、s required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. Application for copies may be addressed to Commanding Officer, Naval Surface Warfare Center, Indian Head, Technical Information Products
12、 Branch (Code E143), Indian Head, MD 20640.) 2.3 Non-Government publications. The following documents 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 contract. AMERICAN NATIONAL STANDARD INS
13、TITUTE/AMERICAN SOCIETY FOR QUALITY ANSI/ASQ Zl.4 Sampling Procedures and Tables for Inspection by Attributes ANSI/ASQ A8402 Quality Management and Quality Assurance - Vocabulary (Copies of these documents are available online at http:/webstore.ansi.org/ansidocstore/default.asp, or from the American
14、 Society for Quality, PO Box 3005, 611 E. Wisconsin Ave., Milwaukee, WI 53201-4606.) AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) ASME B 46 1-2002 Surface Texture (Surface Roughness, Waviness, and Lay) (Copies of this document are available online at http:/www.asme.org or from the American Societ
15、y of Mechanical Engineers, 22 Law Dr. P.O. Box 2900, Fairfield, NJ 07007-2900) 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, supersedes applicable l
16、aws and regulations unless a specific exemption has been obtained. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50700A 3 3. REQUIREMENTS 3.1 General. Materials, parts and assemblies shall comply with the requirements specified on the appli
17、cable drawings and referenced specifications. 3.2 Shear pin strength. The shear pin, after application of protective finish, shall shear when a load of 41 pounds plus or minus 5 pounds is applied at the steady rate of 0.125 inches per minute. 3.3 Protective finish. Protective finish shall be in acco
18、rdance with the applicable specifications and drawings and shall apply to all surfaces of the component regardless of configuration. 3.4 Residual magnetism. The metal parts assemblies shall not deflect the indicator of the compass more than 5 degrees in either direction when passed in front of the c
19、ompass at a distance of 5 inches. 3.5 Workmanship. The requirements for workmanship are as specified on the applicable drawings, referenced specifications and the following: 3.5.1 Metal defects. The part shall be free from cracks, splits, cold shuts, inclusions, porosity or other metal defects. 3.5.
20、2 Burr. The part shall not have a burr which might interfere with the assembly or function of the item or which might be injurious to personnel handling the item. 3.5.3 Foreign matter. The part or assembly shall not contain chips, dirt, grease, oil, rust, corrosion or other foreign matter. 4. VERIFI
21、CATION 4.1 Classification of inspections. a. First Article inspection (see 4.2) b. Lot acceptance inspection (see 4.3) 4.1.1 Quality assurance terms and definitions. Reference shall be made to ANSI/ASQ A8402 to define the quality assurance terms used. 4.1.2 Inspection. Inspection shall be in accorda
22、nce with MIL-A-2550. 4.2 First article sample. 4.2.1 Initial production sample. At the beginning of regular production, the contractor shall submit an initial production sample to a government approved facility for evaluation. The sample shall consist of 50 units from each head treated lot for hardn
23、ess tests, 50 shear pins from each lot, 23 units for protective finish tests, to be tested in accordance with Table I and 10 sets of unassembled parts for visual and dimensional examination. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-507
24、00A 4 Table I. First article samples and tests. Paragraphs Type of test Requirement Test Test Sample size Destr Non-Destr 3.2 4.4.1 Shear Pin Strength 50 X 3.3 4.4.2 Protective Finish In quantities set up in applicable specification X Dwg. 4.4.3 Hardness 50 X 3.4 4.4.4 Residual Magnetism each X The
25、sample shall be manufactured using the same materials, equipment, processes and procedures as used in regular production. All parts and materials, including packaging shall be the same as used in regular production and shall be obtained from the same source of supply. 4.2.1.1 Examination and tests.
26、After examination and provisional acceptance at 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. 4.2.1.2 Initial production failure. Failure of the sample to comply with the requ
27、irements of the drawings and specifications shall result in sample disapproval. 4.3 Inspection provisions. 4.3.1 Lot. 4.3.1.1 Submission of product. The product shall be submitted in accordance with ANSI/ASQ Z1.4. 4.3.1.2 Size of lot. A lot shall consist of an identifiable group of metal parts assem
28、blies consisting of components produced by a homogeneous process. 4.3.2 Examination. One hundred percent examination shall be performed for all critical defects. Examination for major and minor defects shall be performed on a defect basis in accordance with the classification of defects contained he
29、rein, using the sampling plans and associated criteria in Tables II and III. For an individual defect (single characteristic), the criteria in Table II shall be used. For total defects within a major or minor group the criteria in Table III shall be used. All non-conforming material shall be rejecte
30、d. Inspection for rubber O-rings shall be in accordance with MIL-STD-413. The surface roughness comparison specimens prescribed in ASME B46.1-2002 shall be used as a basis of comparison for surface roughness determination. Four power (4) magnification may be used in performing visual examination for
31、 such defects as burr and foreign matter. Table II. Sample size and acceptance, individual defect. Major Major Lot Size Sample Size Accept Reject Accept Reject 1 300 100% Examination 301 1300 110 1 2 2 3 1301 3200 150 2 3 3 4 3201 8000 225 3 4 4 5 8001 22000 300 4 5 5 6 Provided by IHSNot for Resale
32、No reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50700A 5 Table III. Sampling size and acceptance, total defects in class. Total Allowable Defects per Sample Size Sample Size for Major Defects No. of Defects in Class 110 150 225 300 2 - 3 1 2 3 4 4 - 7 2 3 4 5 8 - 19 3 4
33、5 7 20 - 43 4 5 8 10 over 43 6 8 11 14 Sample Size for Minor Defects No. of Defects in Class 110 150 225 300 2 - 3 2 3 4 5 4 - 7 3 4 5 7 8 - 16 4 5 8 10 17 - 48 6 8 11 14 over 48 8 11 17 20 4.3.2.1 Pin Firing, Dwg. C10521573 Covering a detail of Dwg. D11738406 Characteristics Defect Method of Inspec
34、tion Critical 1 Diameter of striker Gage 2 Length of striker Gage 3 Metal defective Visual Major 101 Concentricity of “0” ring groove with body Gage 102 Concentricity of striker with body Gage 103 True position of shear pin hole with body Gage 104 Diameter of “0” ring groove, min. Gage 105 Diameter
35、of body, min. Gage 106 Diameter of shear pin hole, max. Gage 107 Depth of shear pin hole, max. Gage 108 Length of “0” ring groove Gage 109 Location of shear pin hole Gage 110 Permissible variation of “0” ring groove Gage 111 Protective finish inadequate or defective Visual 112 Burr or sharp corner,
36、except where permitted Visual 113 Foreign matter Visual Minor 201 Diameter of “0“ ring groove, max. Cage 202 Diameter of body, max. Gage 203 Diameter of shear pin hole, min. Gage 204 Depth of shear pin hole, min. Gage 205 Depth of counterbore Gage 206 Total length Gage 207 Length of body to “0” ring
37、 groove Gage 208 Location of marking Gage Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50700A 6 209 Marking missing, incorrect or illegible Visual 210 Surface finish improper, except as otherwise classified Visual 4.3.2.2 Housing, Dwg. D11
38、731622, covering a detail of Dwg. D11738406 Characteristics Defect Method of Inspection Critical 1 Metal defective Visual 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 int
39、ernal thread, max. Gage 105 Concentricity pitch diameter of external thread with pitch diameter of internal thread Gage 106 Concentricity of center hole with center cavity Gage 107 Concentricity of cavity at large end with internal thread Gage 108 Concentricity of internal thread with center cavity
40、Gage 109 Concentricity of large body with pitch diameter of internal thread Gage 110 Perpendicularity of base of middle cavity with wall of middle cavity Gage 111 Perpendicularity of base cavity at large end with pitch diameter of internal thread Gage 112 Symmetry of shear pin hole with center cavit
41、y Gage 113 Symmetry across flats with internal thread Gage 114 Diameter of shear pin shaft, max. Gage 115 Diameter at top of shear pin hole Gage 116 Diameter of center hole, max. Gage 117 Diameter of counterbore, large end, max. Gage 118 Diameter of shoulder Gage 119 Depth of shear pin hole Gage 120
42、 Length of internal thread, min. Gage 121 Length of internal thread, max. Gage 122 Width of thread undercut Gage 123 Location of top end of shear pin hole Gage 124 Location of shear pin shaft Gage 125 Protective finish inadequate or defective Visual 126 Surface finish of center cavity, chamfer at mo
43、uth of large end and sidewalls of center cavity Visual 127 Burr or sharp corner Visual 128 Foreign matter Visual Minor 201 Pitch diameter of internal thread, min. Cage 202 Pitch diameter of external thread, max. Gage 203 Diameter of center hole, min. Gage Provided by IHSNot for ResaleNo reproduction
44、 or networking permitted without license from IHS-,-,-MIL-DTL-50700A 7 204 Diameter of flange, small end Gage 205 Diameter of center cavity Gage 206 Diameter of cavity large end Gage 207 Diameter of counterbore, large end, min. Gage 208 Diameter of chamfer, large end Gage 209 Diameter of body, large
45、 end Gage 210 Diameter of shear pin shaft, min. Gage 211 Diameter across flats Gage 212 Depth to chamfer of end cavity Gage 213 Depth to bottom of cavity, large end Gage 214 Depth of counterbore at chamfer end Gage 215 Total length Gage 216 Length of flats Gage 217 Length of hole between cavities Ga
46、ge 218 Thickness of flange Gage 219 Thickness of shoulder Gage 220 Location of internal thread, max. Gage 221 Location of internal thread, min. Gage 222 Surface finish improper, except as otherwise classified Visual 4.3.2.3 Pin, Shear, Dwg. B11731626, covering a detail of Dwg. D11738406 Characterist
47、ics Defect Method of Inspection Critical 1 Metal defective Visual Major 101 Diameter, min. Gage 102 Total length, min. Gage 103 Surface finish improper Visual 104 Protective finish inadequate or defective Visual 105 Burr Visual 106. Foreign matter Visual Minor 201 Diameter, max. Gage 202 Total lengt
48、h, max. Gage 4.3.2.4 Bracket, Mounting, D11731741 covering a detail of Dwg. D11738406 Characteristics Defect Method of Inspection Critical None defined Major 101 Pitch diameter of internal thread, max. Gage 102 Minor diameter of internal thread, max. Gage 103 True position of boss with pitch diamete
49、r of internal thread Gage Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-50700A 8 104 True position of mounting holes with pitch diameter of internal thread Gage 105 Diameter of thread lead Gage 106 Length of effective thread, min. Gage 107 Length of thread, max. Gage 108 Metal defective Visual 109 Pro
