1、flIL-C-9bb27A 13 7797906 0927947 T File COPY Cor pon te Eng neer in g MIL-C-46 6 2 7A(MJ) 9 November 1964 SUPERSEDING MIL-C-46627 (MU) 26 January 1962 MILITARY SPECIFICATION CATAPULT, AIRCRAFI! EJECTION SEAT, M4A1, ASSEMBLY 1. SCOPE m J, Co o! C C D ection.- Unless otherwise specified in the contrac
2、t or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his otm facilities or any comercial laboratory acceptable to the Government. The Government reserves the right to perform a
3、ny of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 guality assurance terms and definitions.- Reference shall be made to MIL-STD-109 to define the quality assurance terms used. 4.1.
4、2 Inspection.- Inspection shall be in accordance with MIL-A-2550 except as specified herein. 4.2 Inspection provisions 4.2.1 4.2.1.1 Submission of product The product shall be submitted in accord- ance with MU-STD-105 or MIL-STD-414, as applicable. 3 Provided by IHSNot for ResaleNo reproduction or n
5、etworking permitted without license from IHS-,-,-MIL-C-4bb27A 13 = 99999Ob 0427950 T W a. MIL-C=46627Af,l) 4.2.1.2 Size of lot.- A lot shall consist of an identifiable group of c assembled units containing metal parts assemblies produced by a homogeneous process and loaded with a single lot of cartr
6、idges, 4.2.2 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 associated criteria in T
7、able III. The total number of allowable defects per class for either the major or minor classification shall not exceed the acceptance number of Table SII. All nonconforming material shall be rejected. Four power (4X) magnificatioa may be used in performing visual examination for such defects as bur
8、r and foreign matter Table III Major Minor Lot Size No. of Samples Accept Reject Accept Reject 1 - 300 100% Examinat ion 301 - 800 50 O 1 1 2 801 - 1800 90 1 2 2 3 4.2.2.1 Cartridge, Aircraft Ejection Seat, Catapult, li37 Dwg,D8593745, a detail of Dwg. F8593669. Defeat Method of Inspection CRITICAL
9、1. Mixed cartridges 2. Metal defects 3. “0“ ring missing 4. secured 5. Marking missing, incorrect or illegible Sealing disc missing, damaged or improperly MAJOR 101. 102. Foreign matter “O“ ring split, cut or cracked Visual a- Visual Visual Visual Visual Visual Visual MINOR 201. Case scratched, wrin
10、kled, bulged or dented Visual 202. Varnish missing or inadequate Visual 4.2.2.2 Seal, Dwg C8593665, a detail of Dwg F8593669. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-qbb27A 23 9999906 0427952 2 a CRITICAL None defined None defined MI
11、NOR Defect 201. inside diameter under flange 202. 203. Radius missing or incorrect 204. Metal defective 205. 206. Burr 207. Foreign matter Inside diameter adjacent to flange Protective finish inadequate or defective MIL-C-46627A(MU) Method of Inspection Gage Gage Visual Visual Visual Visual Visual 4
12、.2.2.3 Assembly, Rwg. F3593669, less all dvgs. except C8593644, B8593654, C8593657, F8593672, C8593679 and AN 6227-11. CRITICAL 1, Gas port hole obstructed 2. Any part missing 3. Improper assembly MAJOR 101. Thread damaged 102. Burr 103. Foreign matter Visual Visual Visual Visual Visual Visual MINOR
13、 None defined 4.2.2.4 Assembly, Dwg. F8593669, less B8593660, D8593673, C8593676, CS593677, C8593678, D8593680, DS5936S4 and C8593741. CRITICAL 1. Flange face surface not in complete contact 2. Cartridge missing 3. Seals inside tube missing with cartridge Gage Visual Visual 5 Provided by IHSNot for
14、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Llbb27A 13 777970b 0427952 3 MIL-C-46627A (MU) Defect Method of Inspection MAJOR 101. Shock washer missing 102. Burr 103. Foreign matter MINOR Visual Visual Visual None defined 4.2.2.5 Assembly, Dwg. F8593669 less all d
15、rawings except D8593681 and C8593678. CRrnICAL None defined MAJOR 101. 102. Burr 103. Foreign matter Spacer not flush with telescoping tube MINOR None defined Visual Visual Visual d 4.2.2,6 Assembly, Dwg. P8593669 less all drawings except B8593660, D8593674, C8593677, D8593684 and C8593741. CRITICAL
16、 1. Any part missing 2. Improper assembly MAJOR 101. Burr 102. Foreign matter None defined 6 Visual Visual Visual Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Vb627A 13 m 7777706 0427953 5 m MIL-C=46627A(lW) Defect Method of Inspectio
17、n 4.2.2.7 Assembly, Drawing F8593669 CRITICAL 1. 2. 3. MAJOR 101 . 102. 103. 104. 105 . 106 . MINOR 201. 202. 203 , 204 , Tubes not free to slide Mixed catapults Marking missing, incorrect or illegible Total length, wx. Diameter of mounting hole Length between mounting poings Block not free to rotat
18、e 360 Burr Foreign matter Location of labels, incorrect Shipping plug missing Seal missing or insecure Protective finish inadequate or defective 4.2.2.8 Packing in Fiber Container, Dwg. F8797383. CRITICAL None defined None defined MINOR 201. 202, 203 . 204. 205. 206. 207 . 208. Gap between body and
19、cwer, max. Contents loose Metal. ends loose or distorted Cut or damaged through all impregnated layers Marking missing, incorrect or illegible Tape incomplete or badly wrinkled Length of tear tab, min. Color of tape incorrect Manual Visual Visual Gage Gage Gage Manual Visual Visual Visual Visual Vis
20、ual Visual Manual Manual Manual Visual Visual Visual Visual Visual 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Defect Method of Inspection 4.2.2.9 Packing in Wooden Box, Dwg. Fa797384 CRITICAL None defined None defined 201. Contents loose 202.
21、Hardware missing, loose, broken or improperly engaged 203. Strapping missing, loose, broken or improperly assembled 204. Contents of box exposed 205. Box damaged 206. Marking misleading or unidentifiable 207. Number of units incorrect 208. Car seal missing, unsealed or improperly positioned Manual i
22、sual/Manual Visual /Manual Visual Visual Visual Visual Visual 4.2.3 Inspection testing.- The following tests shall be performed in accordance with 4.3. 4.2.3.1 Breakaway torque.- A breakaway torque shall be applied to each Failure of any catapult to comply with the catapult threaded joint in 3.2. re
23、quirements of 3.2 shall be cause for rejection of the catapult. residual magnetism. of 3.4 shall be cause for rejection of the catapult. 4.2.3.2 Residual magnetism.- Each catapult shall be tested for excessive Failure of any catapult to canply with the requirements 4.2.3.3 Functional.- The following
24、 tests shall be performed by the Government : 4.2.3.3.1 Ballistics.- Fourteen units shall be tested to determine compliance with the requirements of 3.5.1, 3.5.2, and 3.5.3. The units shall be temperature conditioned as prwided in Table IV and 4.3.3.1.1. variables sampling plan of MIL-STD-414, Examp
25、le C-2, for AOL listed in Table IV shall be used for each sample of 10 units. Failure of any unit to comply with the requirements of 3.5.1, 3.5.2, and 3.5.3 or failure of a sample to meet the criteria of the variables sampling plan shall be cause for rejection of the lot. The 8 Provided by IHSNot fo
26、r ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-qbb27A 13 77777Rb CIL127755 7 TemPerature (Fl -65* to -70 6$ to 750, 160 to 165 Table IV No. of Samles 2 10 2 MIL-C-46627A (Mu) 4.2.4 Inspection equipment.- The examination and tests shall be made using equipment list
27、ed on LEL-8593669. 4.3 Test methods and procedures. 4.3.1 Breakawav torque.- A torque wrench set at the torque requirement The specified in 3.2 shall be used to determine the adequacy of the joint. assembly shall be secured in the fixture prior to application of the torque. 4.3.2 Residual mametism.-
28、 The catapult shall be tested in an area free of local magnetic effects by placing the catapult 6 inches from and at the same height as the compass, in a north-south horizontal position (block end at south) with the compass set in an east-west heading as shown in Figure 1. The catapult shall be move
29、d slowly past the?compass in a longitudinal direc- tion for its entire length, rotated 180 degrees in the horizontal position about its longitudinal axis and moved slowly back past the compass. 4.3.3 Functional. 4.3.3.1 Ballistics.- The catapult shall be rigidly supported in the fixture by the mount
30、ing points and fired with an M3A1 Initiator connected to the catapult with ten (10) feet of aircraft hose, size 4, as specified in MS-28741. The catapult shall comply with the requirements of 3.5. The catapult shall be tested within ten (10) minutes after removal from the conditioning chamber. be re
31、conditioned at the original temperature. when this time limit is exceeded, the catapult shall 4.3.3.1.1 Tenmerature conditioning.- A standard M4A1 Catapult, loaded - with a dunmy M37 Cartridge, containing a temperature sensitive element shall be placed in the conditioning chamber at: the same time a
32、s the samples. conditioning time shall be a minimum of 1 hour longer than the time necessary to bring the element contained in the dummy cartridge to the required temperature . The 5. PREPARATION POR DELIVERY 5.1 Packing and markinpi.- Level A - Packing and marking shall be in accordance with drawin
33、gs F8797383, F8797384. 5.2 Data cards.- Data card information shall be as specified in 3iIL-A-2550. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4bb27A 13 W 999790b 0427956 O f MIL-C-46627A (MU) 6. NOTES 6.1 A “mechanical failure“ is defin
34、ed; as any deformation or breaage of a part, the occurrence of which is other than a design function. firing of the cartridge primer and the beginning of the continuous rise on the pressure time record or thrust the record. 6.2 “Ignition delay“ is defined as the time that elapses between the Custodian: Amy - Mu Preparing activity: Amy - MU Project No. 13756822 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C -466 2 7A (MU) n II d Err O 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
