1、= *- MIL-C-4bbZA 13 U 77797Ob 0333655 MIL-C- 46628A (MU) B-.N-wember 1964- SUPERSEDING MIL-C-466 28 (MU) 26 January 1962 MILITARY SPECIFICATION CATAPULT, AIRCRAFT EJECTION SEAT, M4Al METAL PARTS ASSEMBLY 1. SCOPE 1.1 This specification covers metal parts assembly or Catapult, Aircraft Ejection Seat,
2、 M4Al. conjunction with other propellant actuated devices in aircrew emergency escape systems The assembly will ultimately be loaded and used in 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this spec
3、ification to the ,extent spec if ied her ein : SPEC IF ICAT IONS Military MIL-A-2550 - Amunt ion and Spacial Weapons, General Cpecfication for STANDARDS Plil it ary MIL-STD-105 MIL-STD-109 MIL-STD-413 14IL-STD-639 - Sampling Procedures and Tables for Inspeceton by - Quality Assurance Terms and Defin
4、itioas - Visual Inspection Guide or ilubber O-rings - Surface Roughness Values Preferred or Army nrdnance . Attribut es Materiel. DRAWINGS Munitions Cormnand F85 936 70 F8 7 9 7383 F3797384 IEL-8593670 - Catapult, Aircraft Ejection Seat, M4A1, Ketal Parts - Ammunition Container, Fiber, M301 for Cata
5、pult, - Bo:, Packing , Ammunition for Catapult:, Aircraft - Index to Inspection Equipment List for Catapult, Assembly Aircraft: Eject ion Seat, NtAl or X-4 Ejection Seat, M4A1 or M4 in Fiber Container M301 Airci:aft Ejection Seat M4A1, Metal Parts Assembly Provided by IHSNot for ResaleNo reproductio
6、n or networking permitted without license from IHS-,-,-MIL-C-46bZA 13 I 9997906 0333656 T I MIL-C-46628A(MSJ) (Copies of specifications , standards, and drawings required by suppliers in connection w3th specific procurement functions should be obtained from the procuring accivity or as directed by t
7、he contracting officer.) 3. REQUIREMENTS 3.1 General Materials, parts, and assemblies shall comply with the requirements specified on the applicable drawings,. referenced specifications and the following: 3.2 Initial production sample.- Unless otherwise directed by the contract- ing officer, an init
8、ial production sample shall be required. 3.3 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 in mariufacture. 3.4 Physical properties.- Physi
9、cal properties required by the drawing shall be uniform throughout each part within specified tolerances. ments for all alloy steel parts shall beachieved by quenching and tempering. Require- 3.5 Hydrostatic pressure.- The outside, inside and telescoping tube shall withstand a constant internal pres
10、sure of 3000 pounds per square inch (psi) minimum, for 15 seconds, minimum, without application of any external load and shall show no evidence of leakage or mechanical failure (see 6.1). 3.6 Shear pin strength.- After application of protective finish, the pin shall shear when a load of 400 i 50 pou
11、nds is applied at the steady rate of .25 inches per minute. Structural strength The metal parts assembly shall be capable of 3.7 withstanding each test load for 15 seconds, minimum, as indicated in Table I. The maximum allowable change between mounting points, resulting from each load application sh
12、all not exceed the values indicated in Table I. 500 A preload of pounds shall be utilized prior to each test load application. TABLE I Test Loads Change Between Mounting Points 1. 8000 pounds in tension .O05 inches 2. 8000 pounds in tension .O01 inches 3. 2000 pounds in compression .O05 inches 4. 20
13、00 pounds in compression .O01 inches _- -_ - - c/- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-VIL-C-4662A 13 7777706 0313657 1 MIL-(3-46 6 28AW) 3.8 Torque.- Torque requirements shall be as specified in Table II. No loosening or deformation shal
14、l occur upon application of the breakaway torque. 3.8.1 Bottoming torque.- The bottoming torque between block and inside tube and between ring stop and ring tube stop shall not exceed the running torque by more than 50 inch pounds. TABLE If A C Component - RunzOn Seating or Bottoming BreaLway (inch
15、pounds) (including A) (inch pounds) (inch pounds) Spacer and Telescop- Cap and Outside Tube Ring, Tube Stop and Ring, Stop and Ring, Block and Inside Tube ing Tube 75 min. Outside Tube 75 min. Bube Stop 75 min. 75 min. 500 + 50 200 min, 400 min. 500 + 50 . 400 min. 3.9 Protective finish.- Protective
16、 finish shall be in accordance with the nd shall apply to all surfaces of the applicable specifications and drawings component regardless of contour configuration. 3,lO Residual magnetism.- The metal parts assembly shall not deflect the indicator of the compass more than 3 degrees in either directio
17、n when passed in front of the compass at a distance of 6 inches, Workmanship .- The requirements for workmanship are as specified on 3 .ll the applicable drawings, referenced specifications and the following: 3.11.1 Metal defects. The component shall be free from cracks, splits, cold shuts, inclusio
18、ns, porosity or any similar defect. 3.11.2 Burr. The component 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. 3.11.3 Foreign matter. The component or assembly shall not contain chips, dirt, grease, rus
19、t, corrosion or other foreign matter. 4 . QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract: or purchase order, the suppler is responsible for the performance of all inspection requirements as specified herein. the suppIier may utilize his ow
20、n facilities or any comercial laboratory Except as otherwise specified, 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-C-4662BA L3 9999906 03L3b5B 3 MIL4 - 46 6 28A (MU) acceptable to the Government. any of the inspections set forth in the sp
21、ecification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements . 4.1.1 The Government reserves the right to perform guality assurance terms and definitions.- Reference shall be made to MIL-STD-109 to define the quality assurance terms used.
22、 4.1.2 4.2 Inspection.- Inspection shall be in accordance with MIL-A-2550. 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 5 metal parts assemblie
23、s and 10 sets of parts and 50 shear pins from the same lot of shear pins tested by the contractor. in 4.3.3. The sample shall be manufactured in the same manner, using the same materials, equipment, pro- cesses and procedures as used in regular production. including packaging and packing, must be th
24、e same as used or regular produc- tion and shall be obtained from the same source of supply. shall inspect the sample in accordance with his inspection system. After inspection and provisional acceptance at source, the initial production sample shall be inspected at the Government approved facility
25、for all requirements of the drawings and specifications. The Government reserves the right to require new initial production samples until such time as an acceptable sample is sub- The samples shall be subjected to the tests Test procedures shall be in accordance with 4.4. All parts and materials, T
26、he contractor 4.3 Inspection provisions. 4.3.1.1 SubmissioO of product,- The product shall be submitted in accord- ance with MIL-STD-105. 4.3.1.2 Size of lot.- The lot of metal parts assemblies shall consist of 614 catapults maximum, provided the homogeneity requirements of inspection lots have been
27、 retained. ing officer. 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 herein, using the sampling plan and associa
28、ted criteria in Tables III and IV, For an individual defect (single characteristic) the criteria in Table XII shall be used. For total defects within a major or minor group the A smaller lot may be shipped upon approval of the contract- /v Provided by IHSNot for ResaleNo reproduction or networking p
29、ermitted without license from IHS-,-,-MIL-C-4b62A 13 W 9999906 0333659 5 m MIL-C-466 28A (MU) 4.3.2 (Cont.) criteria in Table IV shall be used. All nonconforming material shall be rejected. 413. used as a basis of comparison for surface roughness determination. (4X) magnification may be used in perf
30、orming visual examination for such defects as burr and foreign matter. Inspection for rubber O-rings shall be in accordance with MIL-STD- The Ordnance Standard Finish Blocks prescribed in MIL-STD-639 shall be Four parer TABLE III Major Lot Size Sample Size Accept Reject Minor Accept Reject 1 - 300 1
31、00% Examination 301 - 1300 110 1 1301 - 3200 150 2 3201 - 8000 225 3 8001 - 22000 300 4 TABLE IV Total Allowable Defects Per Sample Size Sample Sizes for Major Defects 110 No. of Defects in Class 2- 3 4- 7 8 - 19 20 - 43 Over - 43 Sample Sizes for Minor Defects No. of Defects in Class 2- 3 4- 7 8 -
32、16 17 - 48 Over - 48 1 2 3 4 6 110 2 3 4 6 8 2 3 4 5 150 2 3 4 5 8 150 3 4 5 8 11 2 3 3 4 4 5 5 6 225 300 3 4 4 5 5 7 8 10 11 14 225 300 4 5 5 7 8 10 11 14 17 20 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-44628A(MU) 4.3.2.1 Latch, Drawin
33、g C8593645, covering a detail of Drawing F8593670. Defect Method of Inspect ion CRITICAL None defined MAJOR 101. 102. 103, Length of cutout 104. Width at small end 105. Width at cutout 106. Thickness at 8atum locations 108. Angle at large end 109. Metal de.fective 110. Protective finish inadequate o
34、r defective 111, Surface finish of base chamfer and face improper 112. Burr or sharp corner 113. Foreign matter Diameter; of firing pin relief Length to inside surface, small end ,107. Location of firing pin relief Gage Gage Gage Gage .Gage Gage Gage Gage Visual Visual Visual Visual Visual MINOR 201
35、. Total length, max. 202. Thickness, max. 203. Thickness at firing pin relief, max. 204. Width at large end Gage Gage Gage Gage 4.3.2.2 Pin, Shear, Dwg. B8593654, covering a detail of Dwg. F8593670. CRITICAL None defined MAJOR 101. Diameter, max. 102. Total length, min. 103. Metal defective 104. 105
36、. Burr 106. Foreign matter Protective finish inadequate or defective Gage Gage Visual Visual Visual Visual MINOR 201. Total length, max. Gage Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Defect Method of Inspect ion 4.3.2.3 Pin Firing, Dwg. C85936
37、57 covering a detail of Dwg. F8593670. CRSTSCAL 1, Diameter of striker, max. Gage MAJOR 101. 102. 103 104. 106. 107. 108. 109 . 110. 111. 112 . 113 114. 116. 118. 119. 120. 105 115 117. MMOR Concentricity of striker with striker shoulder Concentricity of flange with striker shoulder Concentricity of
38、 groove with flange Symmetry of forward datum location with striker shoulder Symmetry of width of body with striker shoulder Symmetry of thickness of body with striker shoulder True position of pin hole with striker shoulder and thickness of body Diameter of striker shoulder, min. Diameter of flange
39、, min, Diameter of groove Depth of hole in striker shoulder (max) Length of striker, min, Width of body, max. Width of groove Relief groove on striker shoulder, missing Metal defective Protective finish, inadequate or defective Surface finish of body, flange and striker shoulder, Burr or sharp corne
40、r, except as permitted Foreign matter improper Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Measure Visual Visual Visual. Visual Visual Visual 201. 202. Diameter of flanges, max. 203. Diameter of hole in striker shoulder 204. 205. Width at forward datum location 206. Width at rea
41、r datum location 207. Location of hole 208. Surface variation on rear face of striker shoulder Diameter of striker shoulder, max, Depth of hole in striker shoulder, min. Gage Gage Gage Gage Gage Gage Gage Gage 4.3.2.4 Seal, Plain, Dwg, B8593658, covering a detail of Dwg. F8593670. CRITICAL None. def
42、ined 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-466 28A (MU) Defect MAJOR 101. Diameter of wire, max. (after plating) 102. Number of coils incorrect 103. Location variance of ends, max. 104. Metal defective 105. Protective finish, inadeq
43、uate or defective 106. Burr or sharp edge 107. Foreign matter MINOR 201. Diameter, outside 202. Direction of turn, incorrect Method of Inspection Gage Visual Visual Visual Visual Visual Visual Meas ur e Visual 4.3.2.5 Seal, Fixed, Dwg, B8593661 covering a detail of Dwg. F8593670. CRITICAL None defin
44、ed MAJOR 101. 102. 103. 104. 105, 106. 107. 108. 109. MINOR Diameter of wire, max. (after plating) Length of tang Location variance of ends, max. Number of coils, incorrect Radius of tang band, max. Metal defective Protective finish inadequate or defective Burr or sharp edge Foreign matter Gage Gage
45、 Visual Visual Visual Visual Visual Visual Visual 201. Diameter, outside 202. Direction of turn incorrect Gage Visual 4.3.2.6 Block, Dwg. F8593672, covering a detail of Dwg. F8593670. CRITICAL None defined MAJOR 101. Pitch diameter of thread, max. 102. Minor diameter of thread, max. 103. Pitch diame
46、ter of pipe thread 104. Minor diameter of pipe thread, max. 105. Concentricity of counterbore with small cavity Gage Gage Gage Gage Gage 8 1 i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Ybb2A 23 m 779970b 0323bb3 7 Defect MAJOR (Cont) 106.
47、 107. 108 109. 110. 111. 112. 113. 114 115. 116. 117. 118. 119. 120. 121. 122. 123. 124. 125 126. 127. 128. 129. 130. 131 MINOR 201 202. 203. 204. 205. 206. 207. 208. 209 210. 211. 212, 213 214. 215. 216. 217. Concentricity of pitch diameter of thread with Concentricity of large cavity with counterb
48、ore Concentricity of flange with body Symnetry of length of slot with body Symmetry of thickness of rectangular section with Symmetry of width of rectangular section with body Perpendicularity of hole with rectangular section True position of pin hole with small cavity True position of hole in recta
49、ngular section with True position of screw hole with counterbore and Diameter of mounting hole in rectangular section Diameter of small cavity Diameter of counterbore, max. Depth to bottom of small cavity (max.) Length to flange, max. Length of effective thread, min. Width of rectangular section, max. Diameter of thread undercut, max., if applicable Depth to bottom of drilled hole, max. Location
