1、MI L-T-&947A( MU) 30 May 1968 SUPERSEDING 20 September i963 MIL-T-46947( MU) MILITARY SPECIEECATION THRUSTER, CARTRIDGE ACTUATED, M11 METAL PARTS ASSEMBLY 1. SCOPE 1.1 This specification covers Thruster, Cartridge Actuated, MU, Metal Parts Assembly. with other propellant actuated devices in aircrew
2、emergency escape systems. The assembly will ultimately be loaded and used in conjunction 2. APPLCABLF: DOCUMENTS 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. SPECIFICATION
3、S Mi lit ary MIL-A-2550 - Amtnunition and Special Weapons, General Specifica- tion for STANDARS Military MIL-STD-lo5 MIL-STD-109 MIL-STD-413 MIESTD- - Ammunition Data Cards - Sampling Procedures and Tables for Inspection by - Quality Assurance Terms and Definitions - Visual Inspection Guide for Rubb
4、er O-Rings Attribut e s DRAWINGS Munit ions Command Fi0521566 8800969 - Thruster, Cartridge Actuated, MU, Metal Parts Assembly - Container, Ammunition, Fiber M434 for Thruster, Cartri& e Actuated, Mll with Cartridge M141 FSC 1377 Provided by IHSNot for ResaleNo reproduction or networking permitted w
5、ithout license from IHS-,-,-MI -T-46947A (MJ) DRAWINGS (Cont d) Munitions Command c8800970 - Box, Packing, Ammunition for Thruster, Cartridge Actuated, M11 with Cartridge M14l in“Fiber Con- tainer M434 IEL-10521566 - Inspection Equipment List for Thruster , Cartridge Actuated Ml1, Metal Parts Assemb
6、ly (Copies of specifications, standards and drawings required by suppliers in con- nection with specific procurement functions should be obtained front the procur- ing activity or as directed by the contracting officer,) PicaCion to the extent specified herein. Unless otherwise indicated, the issue
7、in effect on date of invitation for bid or request for proposal shall apply, 2.2 Other Publications.- Te followng document forms a part of this speci- ASA 46,l - Surface Texture, Surface Roughness, Waviness and lay (Application for copies should be addressed to the American Standards Association, 10
8、 East 40th Street, New York, N.Y. lOOl6.) 3. REQuIREMENTs 3.1 General.- Materials, parts and assemblies shall comply with the require- ments specified on the applicable drawings and in the reference specification, 3.2 Material,- The contractor shall be responsible for selecting from the classificati
9、on list contained in the raw material specification the surface and physical condition of the raw material intended for use in manufacture. c O 3.3 Mechanical properties .- Mechanical properties required by the drawing shali be uniform throughout the part within specifZed tolerances. for all alloy s
10、teel parts shall be achieved by quenching and tempering. Requirements 3.4 Metal parts assembly.- Parts shall be combined 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 applicabl
11、e specifications and drawings and shall apply to all surfaces of the component regardless of contour configuration. indicator of a compass more than 3 degrees in either direction when passed in front of the compass at a distance of 6 inches. 3.6 Residual magnetism.- The metal parts assembly shall no
12、t deflect the 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-qb747A 13 W 777770b 0428028 8 MIL-S-46947A(MT) 3.7 Workmanship.- The requirements for workmanship are as specified on the applicable drawings , referenced specifications and the fo
13、llowing: 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 shall have a burr which might interfere with the assembly or function of the item or which might be injurious to personnel hand- ling the ite
14、m. 3.7.3 Foreign matter.- No part or assembly shall contain chips, dirt, grease, rust, corrosion or other foreign matter. 4. QUAUTY ASSURANCE PROVISIONS 4.1 Responsiblity for inspection.- Unless otherwise specified in the contract Except as otherwise specified in the con- or purchase order, the supp
15、lier is reqonsible for the performance of all inspec- tion requirements as specified herein. tract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless .sapproved by the Government. spections set forth in
16、the specification where such inspections are deemed neces- sary to assure supplies and services conform to prescribed requirements, The Government reserves the right to perform any of the in- 4.1.1 Quality assurance terms and definitions.- Reference shall be made to MLLSTD-109 to define quality assu
17、rance terms used. 4.1.2 Inspection.- Inspection shall be in accordance with MILA-2550 except as specified herein, 4.2 First article sample. 4.2.1 Initial production sample.- At the beginning of regular production, a sample shdl be submitted in accordance with contract requirements and shall con- sis
18、t of 5 metal parts assemblies, 10 sets of parts, fifty shear screws, fifty shear pins and fifty curved washers from the same lots tested by the contractor. The samples shall be subjected to tests in 4.3.3. The test procedures shall be in accordance with 4.4. The samples shall be manufactured in the
19、same manner, using the same materials, equipment, prouesses and procedures as used in regu- lar production. be the same as used in regular production and shall be obtained from the same source of supply, AL1 parts and materials, including packaging and packing, must 3 Provided by IHSNot for ResaleNo
20、 reproduction or networking permitted without license from IHS-,-,-MIL-T-46747A 13 M 7777906 0428029 T U 1 MIL-T-46&7A(W) I 4.2.1.1 Examination and test. - After inspection and provisional acceptance at source, the sapple shall be inspected for all requirements of the drawings and specifications at
21、a Government laboratory or such other facility specified in the contract. 4.2.1.2 Initial production sample failure.- Failure of the sample to com- . ply with requirements of the drawings and specifications shall result in sample disapproval. 4.3 inspection provisions, 4.3.1 - ht. 4.3.1.1 Submission
22、 of product.- Unless otherwise specified by the contract- ing officer, formation of lots and presentation of lots shall be in accordance with the “Submission of Product“ provisions of MIL-STD-105. 4.3.1.2 Size of lot.- The shipping lot of metal parts assemblies shall con- sist of 1200 thrusters, max
23、imum, provided the.homogeneity requirements of in- spection lots have been retained. 4.3.2 Examination. - One hundred percent examination shall be performed for all critical defects. formed on a defect basis in accordance with the cla.ssification of defects con- tained herein, using the sampling pla
24、ns and associated criteria in Table I and II. For an individual defect (single characteristic), the criteria in Table 1 shall be used, For total defects within a major or minor group, the criteria in Table II shall beused. All nonconforming material shall be rejected, The roughness comparison specim
25、ens prescribed by ASA si16.i shall be used as a basis of compar- ison for surface roughness determination. Inspection for rubber O-rings shall be in accordance with MIL-STD-413. Four power (4X) magnification may be used in performing visual examination for such defects as burr and foreign matter. Ex
26、amination for major and minor defects shall be per- Table I Major Minor Accept Reject - Accept Reject - Lot Size Sample Size i - 300 lowo Examination 301 - 1,300 100 1 2 2 3 1,301 - 3,200 150 2 3 3 4 3,201 - 8,000 225 3 4 4 5 8,001 - 22,000 300 4 5 5 6 4 Provided by IHSNot for ResaleNo reproduction
27、or networking permitted without license from IHS-,-,-NIL-T-4bSY7A 13 W 7999906 O428030 b W c Table II Total Allowable Defects per Sample Size Sample Sizes for Major Defects No. of Defects in Class 2- 3 4- 7 8 - 19 20 - 43 over 43 .- 110 - 150 - 225 C 1 2 3 2 3 4 3 4 5 4 5 8 6 8 11 Sample Sizes for M
28、inor Defects - - 1-50 - 225 No. of Defects in Class 2- 3 4- 7 8 - 16 17 - 48 over 48 2 3 4 3 4 5 4 5 8 6 8 11 8 11 17 4 5 7 10 14 - 300 5 7 10 14 20 4.3.2.1 Body, Dwg. D1052156-, covering a detail of Dwg. F1052i.566. Defect CRITICAL None defined Method of Inspection MAJOR 101. 102. 103. 105. 106. 10
29、7 108. log. 110. 111 112. 104. Concentricity of groove with large cavity Concentricity of internal counterbore with large cavity Concentricity of small cavity with large cavity Concentricity of body with large cavity True position of pin .hole Diameter of large cavity Diameter of groove Diameter of
30、small cavity bcation of groove, max. Profile of nose Metal defective Protective finish inadequate or defective Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Visual Visual 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-Yb747A 13 777970b 0
31、428031 8 W MILT-46947A(rjiu 4.3.2.1 (Contd) Defect MAJOR . 113. Surface finish of cavity and nose, improper 114. Burr or sharp corners 115. Foreign matter MINOR 201. 202. 203 204. 205. 206. 207. 208, 209. 210. 211. 212. 213 214. 215. 216. 217. 218. 219. 220. 221. 222. 223 224. 225. 226. Pitch diamet
32、er of thread Minor diameter of thread, max. Diameter of pin hole Diameter of body Diameter of internal counterbore Diameter at intersection of tapers Depth of pin hole Depth of large cavity Depth to face of internal counterbore Depth to bottom of counterbore Depth to bottom of small cavity Depth of
33、effective thread, min. Depth of thread, max. Width of groove Location of groove, min. Location of pin hole Angle at base of large cavity Diameter of counterbore, pin hole Depth to drill point Length of tip Length of nose Total length Location of taper intersection Marking missing, incorrect or illeg
34、ible Radii or chamfer incorrect Surface finish improper, except as otherwise classified Method of Inspection Visual Visual Visual Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gag e Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Visual 4.3.2.2 Head Dwg. F10521569, covering
35、 a detail of Dwg. 10521583. CRITICAL c None defined 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-T-4b747A I3 W 7797706 0428032 T e 4.3.2.2 (Conk d) Defect - MAJOR 101. 102. 103. 104. 105. 106. i07 108. log. 110. 111 112. 113. 114. 115. 116
36、. 117. ila. 119. 120. 121. 122. 123. 124. 125. 126. 127. 128. MINOR 201. 202. 204. 205. 207. 203. 206. Pitch diameter of external thread, min. Major diameter of external thread, min. Pitch diameter of internal thread, max. Minor diameter of internal thread, max. Concentricity of body with internal t
37、hread Concentricity of small cavity with internal thread Concentricity of counterbore with internal thread Concentricity of large cavity wTth internal thread Concentricity of shoulder with internal thread Concentricity of internal groove with large cavity Concentricity of external groove with should
38、er True position of pin hole Diameter of small cavity Diameter of counterbore Diameter of large cavity Diameter of body Diameter of large shoulder, max. Diameter of pin hole Depth to bottom of internal thread undercut Depth to bottom of large cavity, max. Depth to bottom of counterbore, max. Profile
39、 of internal groove Profile of external groove Meta 1 defective Protective finish inadequate or defective Surface finish of small cavity and body, impropr Burr or sharp edge Foreign matter MI L- T- 46 947A (MU) Method of Inspection Pitch diameter of external thread, max. Pitch diameter of internal t
40、hread, min. Diameter of large shoulder, min. Diameter of pellet hole in external thread Diameter of groove, exberna1 Diameter of groove, internal Diameter of undercut, internal thread Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage V
41、isual Visual Visual Visual Visual Gage Gage Gage Gage Gage Gage Gage 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_I_ - MIL-T-46747A 13 m 7779406 0428033 1 m 1 t MI L-T-46947A (MU) 4.3.2.2 (Contd) MINOR 208. 209. 210. 211. 212. 213. 215. 216, 21
42、7. 218. 219. 220. 221. 222. 223. 224. 214. 225 226. 228. 227 s 229. Defect Diameter of undercut, external thread Depth to bottom of large cavity, min. Depth to bottom of small cavity Depth to bottom of internal groove Depth to bottom of counterbore, min. Depth of pellet hole Length of body Total len
43、gth Width across flats Location of flats Location of groove, external Location of hole thru external thread Diameter of shoulder at flats Diameter of hole, external threaded end Length to end of flats Length to angle on shoulder Width of undercut, internal Width of undercut, external Location of und
44、ercut, external Marking missing, incorrect or illegible Radii or chamfer incorrect Surface finish improper, except as otherwise Method of Inspection Gage Gage Gas Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Visual Gage classified Visual 4.3.2.3 Retainer, Dwg . D10
45、521570, covering a detail of Dwg . C10521575, CRITICAL None defined MAJOR 101. Pitch diameter of external thre 1, min. 102. 103. 104. 105. 106. 107, 108. Major diameter of external thread, min. Pitch diameter of internal thread, max. Minor diameter of internal thread, max. Concentricity of body with
46、 external and internal threads Concentricity of long cavity with short cavity Concentricity of short cavity with external thread Concentricity of counterbore with short cavity 8 Gage Gage Gage Gage Gage Gage Gage Gage Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
47、se from IHS-,-,-MIL-T-469qiA L3 777770b Oq2803Y 3 MIL-T-46947A(KJ) 4.3.2.3 (Conk d) MJOR log. 110. 111. 112. 114. 113. 115. 116. 117. 118. 119. 120. MINOR 201. 202. 203. 204. 205. 206. 208. 209. 210. 211. 212. 213. 214. 207. 215. Defect Concentricity of thread lead with external Diameter of body Dia
48、meter of thread lead, min. Diameter of counterbore, max. Diameter of short cavity, min. Radii at base of counterbore and mouth of short cavity Thread damaged or not full Metal defective Protective finish inadequate or defective Surface finish on body, improper Burr or sharp corners Foreign matter Me
49、thod of Inspection thread Gage Gage Gage Gage Gage Gage Visual Visual visual Visual Visual Visual Pitch diameter of external thread, max. Pitch diameter of internal thread, min. Diameter of thread lead, Max. Diameter of counterbore, min. Diameter of short cavity, max. Diameter of long cavity Depth of counterbore Depth to base of short cavity Total length Length of body Length of thread lead Length
