1、y.- ? /- . z . .I I i - - 1 F-ebruarv 1971 SUPERSEDING MIL- T- 50303 (MU) 10 May 1969 MILITARY SPECIFICATION THRUSTER, CARTRDGE ACTUATED: M26 METAL PARTS ASSEMBLY 1. SCOPE 1.1 This specification covers Thruster, Cartridge Actuated: M26 Metal Parts Assembly. in conjunction with other propellant actua
2、ted devices in aircrew emergency escape systems. 2. APPLICABLE DOCUMENTS The assembly will ultimately be loaded and used 2.1 The following documents of the issue in effect on date of invitation _. for bids or request for proposals, form a part of this specification to the extent specified herein. SP
3、ECIFICATIONS Military MIL-A-2550 STANDARDS -Ammunition and Special Weapons, General Specification for Mi 1 i tary MIL- STD- 105 MIL- STD- 109 MIL- STD-413 DRAWINGS -Sampling Procedures and Tables for Inspection -Quality Assurance Terms and Definitions -Visual Inspection Guide for Rubber O-Rings by A
4、ttributes Munitions Command F10551372 -Thruster, Cartridge Actuated, M26 Metal C9243197 C9243 198 IEL 10551372 Parts Assembly Cartridge Actuated, M26 Cartridge Actuated, M26 Cartridge Actuated, M26 Metal Parts Assembly -Container, Ammunition Fiber, for Thruster, -Box, Packing, Ammunition for Thruste
5、r, -Inspection Equipment List for Thruster, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-T-50303A 13 W 7777706 0326230 B W - MIL- T- 50303A( MU) 2.1 (Contd) (Copies of specifications, standards and drawings required by suppliers in connectio
6、n with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Eher publications.- The following document forms a part of this specification to the extent specified herein, the issue in effect on date of invitation for bid or requ
7、est for proposal shall apply. Unless otherwise indicated, ASA B46.1 - Surface Texture (Application for copies should be addressed to the American Standards Association, 10 East 40th Street, New York, N. Y. 10016.) 3. REQUIREMENTS 3.1 General.- Materials, parts and assemblies shall comply :with the r
8、equirements specified on the applicable drawings, and in the referenced specifications. 3.2 Material.- The contractor shall be responsible for selecting from the classification list contained in the raw material specification, the surface and physical condition of the raw material intended for use i
9、n manu- facture. 3.3 Mechanical properties.- Mechanical properties required by the draw- ing shall be uniform throughout the part within specified tolerances. ical properties for all alloy steel parts shall be achieved by quenching and tampering. . Mechan- 3.4 Metal parts assembly.- Parts shall be c
10、ombined to produce an assembly which conforms to the requirements of the metal parts assembly drawing. 3.5 Protective finish.- Protective finish shall be in accordance with the applicable specifications and drawings and shall apply to all surfaces of the component regardless of contour configuration
11、. 3.6 Residual magnetism.- The metal parts assembly shall not deflect the indicator of the compass more than 3 degrees in either direction when passed in front of the compass at a distance of 6 inches. 3.7 Workmanship.- The requirements for workmanship are as specified on the applicable drawings, re
12、ferences specifications and the following: ,- 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.7.1 Metal defects.- All components shall be free from cracks, splits cold shuts, inclusions, porosity or other metal defects. 3.7.2 Burr.- No part 8hall
13、 have a burr which might interfere with the assembly or function of the item or which might be injurious to personnel handling the item. 3.7.3 Foreign matter.- No part or assembly shall contain chips, dirt, grease, rust, corrosion or other foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsi
14、bility for inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. specified in the contract or order, the supplier may use his own or any other facilities suitable for the performa
15、nce of the inspection requirements speci- fied herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requiremen
16、ts. Except as otherwise 4.1.1 Quality assurance terms and definitions,- Reference is made to MIL-STD-109 to define quality assurance terms used. 4.1.2 Inspection.- Inspection shall be in accordance with MIL-A-2550 except as specified herein. 4.2 First article sample. 4.2.1 Initial production sample.
17、- At the beginning of regular production, samples shall be submitted in accordance with contractual requirements and shall consist of 5 metal parts assemblies, 10 sets of parts, fifty shear pins and fifty inital lock shear pins from the same lot of shear pins tested by the contractor, The samples sh
18、all be subjected to the tests in 4.3.3. The test procedures shall be in accordance with 4.4. The sample shall be manu- factured in the same manner, using the same materials, equipment, processes and procedures as used in regular production. All parts and materials, in- cluding packaging and packing
19、must be the same as used in regular production and shall be obtained from the same source of supply. 4.2.1.1 Examination and Test.- After inspection and provisional accep- tance at source, the samples shall be inspected for all requirements of the drawings and specifications at a Government laborato
20、ry or such other facility specified in the contract. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-50303A I3 I 777770b 032b232 I I - MIL- T- 50303A (m) 4.2.1.2 Initial production_ sample failure.- Failure of the sample to comply with requir
21、ements 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.- Unless otherwise specified by the contracting officer, formation of lbts and presentation of lots shall be in accordance with the “Submission of Product
22、“ y provisions of MIL- STD- 105. 4.3.1.2 Size of lot.- The shipping lot of metal parts assemblies shall consist of 1200 thrusters, maximum, provided the homogeneity require- ments of inspection lots have been retained. A smaller lot may be shipped upon approval of the contracting officer, 4.3.2 Exam
23、ination.- One hundred percent examination shall be performed for all critical defects. performed on a defect basis in accordance with the classification of defects contained herein, using the sampling plans and associated criteria in Table L and II. For an individual defect (single characteristic),
24、the criteria in in Table I shall be used. For total defects within a major or minor group, the criteria in Table II shall be used. All nonconforming material shall be rejected. The roughness comparison specimens prescribed in ASA B46.1 shall be used as a basis of comparison for surface roughness det
25、ermination. In- spection for rubber O-rings shall be in accordance with MIS-STD-413. Four power (4X)magnification may be used in performing visual examination for such defects as burr and foreign matter, Examination for major and minor defects shall be TABLE I Lot Size 1- 300 100% Examina t ion 301
26、- 1300 110 1301 - 3200 150 3201 - 8000 225 8001 - 22000 300 Major Minor Accept Reject Accept Reject 1 2 2 3 2 3 3. 4 3 4 4 5 4 5 5 6 4 d Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-T-50303A 13 H 9799906 O326233 3 MIL- T- 50303A(MU) No. of De
27、fects in Class 2-3 4-7 8 -19 20 -43 over 43 No. of Defects in Class 2-3 4-7 8 - 16 17 - 48 Over 48 TABLE II Sample Sizes for Major Defects 110 150 225 300 Total Allowable Defects per Sample Size 1 2 3 4 2 3 4 5 3 4 5 7 4 5 8 10 6 8 11 14 Sample Sizes for Major Defects 225 300 110 150 .Total Allowabl
28、e Defects per Sample Size 2 3 4 5 3 4 5 7 4 5 8 10 6 8 11 14 8 11 17 20 4.3.2.1 Sleeve, Dwg. D10551375, coverinp a detail of Dwg. F10551372. Defect Method of Inspection CRITICAL None defined MAJOR 101. Pitch diameter of thread, rnax. Gage 102. Minor diameter of thread, max. Gage 103. “True Position
29、of small inside diameter with pitch diameter of threads Gage 104. Min, wall Gage 105. Concentricity of internal groove diameter to small inside diameter Gage 106. True Position of ring bore diameter with small inside diameter Gage 107, Perpendicularity of sleeve face to small inside diameter . Gage
30、5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-50303A 13 7777706 0326234 5 - I MIL-T- 50303A(MU) 4.3.2.1 (Contd) Defect Method of Inspection MAJOR 108. 109. 110. 111. 112. 113 114. 115. 116. 117. 118. 119. 120. 121. 122. MINOR Parallelism of
31、 internal undercut shoulder with sleeve face Gage Small inside diameter Gage Inside diameter of groove Gage Outside diameter Gage Depth from face to groove Gage Groove width Gage Depth from face to undercut Gage Diameter of ring groove Gage Depth of IO1 ring groove Gage Surface finish of bore improp
32、er Visual ( See 6.2) Metal defective Visual Protective finish inadequate or defective Visual Sharp edge omitted from groove Visua 1 Burr or sharp corner, except as otherwise classified Visual . Foreign matter Vi sua 1 201, Pitch diameter of thread, min. Gage 202. Total length Gage 203. Radii or cham
33、fers incorrect Gage 204. Width of undercut Gage 205. Radii or chamfers missing Visual 206. Surface finish improper except as otherwise classified Visua 1 4.3.2.2 Tube, Inside Assembly, Dwg. D10551376, covering a detail of Dwg. F10551372. CRITICAL None defined MAJOR 101. Pitch diameter of thread, min
34、 Gage 102. Major diameter of thread, min Gage 103, True position of large outside diameter with thread pitch diameter Gage 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-50303A 13 W 7779706 0326235 7 m MIL-T- 50303A(MU) 4.3.2.2 (Contd) MAJOR
35、 104. 105, 106. 107. 108. 109. 110. 111. 112. 113. 114. 115. 116. 117. 118, 119. 120. 121. 122. 123. 124. 125. 126. 127. 128, 129. MINOR 201. 202. 203. 204. 205. 206 207. 208. 209. Defect Method of Inspection True position of intermediate outside diameter with thread pitch diameter Concentricity of
36、groove diameter with large outside diameter True position of small outside diameter with thread pitch diameter True Position of threaded end bore diameter with thread pitch diameter True Position of long bore.diameter with thread pitch diameter True position of small inside diameter with thread pitc
37、h diameter Runout of undercut diameter with small outside diameter True Position of wrench flats Intermediate outside diameter Small outside diameter Small inside diameter Inside diameter threaded end Inside diameter of long bore Groove width Profile of groove Surface finish improper Protective fini
38、sh inadequate or defective Metal defective . Burr or sharp edge Foreign matter Large outside diameter Groove diameter Width across wrench flats Pellet protrusion, max. Pellet loose, missing or improperly inserted Undercut diameter Location of groove Location of small bore Location of thread undercut
39、 Undercut width Pitch diameter of thread, max. Total length Length from threaded end to groove shoulder Length of intermediate outside diameter Length of inside bore 7 - . Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Visual (See 6.2) Visua 1 Visual Visual Visual Gage Ga
40、ge Gage Gage Manua 1 /Vi sua 1 Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage - -% Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.3.2.2 (Contd) I MINOR 210. 211. 212. 213. 214. 215. 216, 217. 218. Defect Radii or chamfers incorrect Width of wre
41、nch flats Location of wrench flats Diameter of pellet hole Depth of Pellet Hole Location of pellets Radii or chamfers missing Surface finish improper, except as otherwise classified Marking missing, incorrect or illegible Method of Inspection Gage Gage Gage Gage Gage Gage Vi sua 1 Vi sua1 Visual 4.3
42、.2.3 Tube, Outside-Assembly, Dwg. D10551377, covering a detail of Dwg. F10551372. CRITICAL I None defined MAJOR 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. 113. 114. 115. 116, 117. 118. True position of body diameter with thread pitch diameter Runout of thread undercut diameter with
43、body diame ter True position of large inside diameter with thread pitch diameter True position of intermediate inside diameter with large inside diameter True position of wrench flats with body Perpendicularity of wrench flats with body Pitch diameter of.thread, min. Major diameter of thread, min. T
44、hread undercut diameter Outside body diameter Large inside diameter Depth to bottom of small inside diameter Spherical radius Perpendicularity of threaded face to thread pitch diameter Runout of small outside diameter with body diameter Location of wrench flats Protrusion of pellets, max. Pellet loo
45、se, missingorimproperly inserted Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Ga ge Gage Gage Gage Gage Manual/Visual 8 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-50303A 13 7777906 0326237 om MIL- T- 503036 (MU) 4.3.2.3 (C
46、ontd) Defect MAJOR 119. 120. 121. 122. 123. MINOR 201, 202, 203. 204. 205. 206 207. 208. 209 210. 211 212. 213. 214. 215. 216. 217 218. 219. Metal defective Protective finish inadequate or defective Surface finish improper Burr or sharp edge Foreign matter Small inside diameter Intermediate inside d
47、iameter Pitch diameter of thread, max. Small outside diameter Angle of nose Depth to intermediate inside diameter Depth of small inside diameter Total length Length of nose tip Location of thread undercut Width of thread undercut Angle of thread undercut Location of pellets Depth of pellet holes Dia
48、meter of pellet holes Radii or chamfers incorrect Radii or chamfers missing Marking missing, incorrect or illegible Surface finish improper, except as otherwise classified Method of Inspection Visua 1 Visual Visual (See 6.2) Vi sua 1 Visual Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage
49、 Gage Gage Gage Gage Vi sua 1 Visual Visua 1 4.3.2.4 Dwg. F10551372. Tube, Intermediate, Dwg. F10551378 covering a detail of CRITICAL None defined MAJOR 101. True position of large outside diameter with body Gage 102. 103. diameter True position of intermediate outside diameter with- body diameter Gage True position of body diameter with large inside diameter Gage * 9 Provided b
