1、t- MIL-F-50673 13 7779706 0330004 = 10 November 1370 g - i MILITARY SPECIFICATION FIRING MECHANISM, CARTRIDGE ACTUATED: 29376-1 ASSEMBLY 1. SCOPE: 1.1 This specification covers Firing Mechanism 29378-1. The-assembly will be used to activate the canopy counter balance jettison and clnch dom cylinder
2、assembly in the TF-102 Aircraft. 2. APPLICABLE DOCUMENTS: 2.1 The following documents of the issue in effect on the date of invi- .tation for bids or request for proposal fom a part of this specification to the extent specified herein. SPECIFICATIONS Military STANDARDS Military MIL-STD-105 MIL-STD-I
3、O$ MS-28741 MIL-A-2 5 5 O MIL-L-4343 A - huktion and Special Weapons, General - Lubricating Grease, Pneumatic System Specification for. - Sampling Procedure and Tables for - Quality Assurance Terms and Definitions - Hose ASsembly - Detachable End Fitting, Inspection by Attributes. Medim Pressure - C
4、ontainer, Ammunition, Fiber, fcr -. :rix - Mechanism Assembly, P/N 2C)37 of this spec5fication to the extent specified herein. Unless otherwise indlcated the issue in effect on date of invitation for bids shall apply; Interstate Comerce Cormission - k9 CFR 71-78 The Interstate Comerce Commission Rul
5、es and Regulations for the Transportation of Explosive and other Dangerous Articles. (The Interstate Comxrce Coimzission Zegulations are now a part of the Code of Federal Regulations availzble frm the Superintendent of Documents, Government Printing Office, Xashinpton, 3. C. Orders for above plrblic
6、ation should cite “49 CFR 71-78“). 3. Trr : 3.1 General - Naterial? parts and assemblies shall coply xitk fkn PP;:*F.- Erects specified on the applicable drawings and specifi9ations. 3.2 Torque - Torque requirements shall be as specifred in the applicable drawings. 3.3 Fesiciual magnetism - The firi
7、ng mechanism shall not deflect the iridica- tor of the coxpass more than 3 degrees in either direction when passed in front of the compass at a distance of 6 inches 3.4 Fcinctionai: 3.4.1 The firing mechanism shall not fail to fire. 3. A. 2 The firing mechanism shall riinct ion without rwchanlctal n
8、ilure (See G.2). 3.4.3 Initiation - The firing mechanism shall be fired 1;y a CCCY 53lt-,r- ering a?. o.,:V?ut eqEal to that of an M3Al Initiator at, tk em1 of 1: feet c.3 iircralt :ese, size 4, ?IS2874i, at 70 5 5OF. (Max 500 psig). 3.4 4 Eallist ics - The firing mchanism loaded wtk an wcepte2 cart
9、rSce and tenperature conditioned at -659, 709 and 200F shall be “ired tnto a 5.60 ccbic inch volume for pressure-time performance and data recorllecl fr in?o:mation. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-50693 13 9999906 033000b L m
10、 MIL-F - 5 0693 ( PZ ) TABU I Cnit of -65O tod700F 65 to 75OF 200 ;o 255% ,;:xn .,. l.:z: - - Min Xax - Min Max _I- Paraae t-, e r ?.le asurement .Ignition Delay SEC .3t * * * + c Time to Peak Pressure SEC * * * * * + Peak Pressure PSIG -x- -E * * * si- * For Information Only. 3.5 Workmanship - 3.5.
11、1 Metal defects - All components shall be free from cracks, splits, cold shuts, inclusions, porosity, or any similar defects. 3.5.2 Burr - Parts shall not have a burr which might interfere with the II assembly or function of the item or which might be injurious to persoruel hand- ling the item, . 3.
12、5.3 Foreign matter - Parts or the assembly shall not contain chips, dirt, grease, rust, corrosion, or other foreign matter. 4. QUALITY ASSURANCE PROVISONS . . 4.1- Responsibility for inspection - Unless otherwise specified in the con- tract or purchase order, the supplier is responsible for the perf
13、ormance of all inspection requirements as specified herein. the contract or order, the supplier may use his own or any other facilities suitable for the perfomnce of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any o
14、f the inspecttons set forth in the specification where such in- spections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise specified in 4.1.1 Qriality assurance terms and definitions - Reference shall be miie to :i h?* Q:C$EC.,: process and
15、 loaded with a single lot of accepted car-trW:es. Size OE lot - A lot Chai1 consis$ 0. an it.entif:.:L:J.c ;tYJ:q, c,: 4.2.2 Examination - One hundred percent examination shall Ge r:i.rfop:c-4 Examination for major and minor defects shall be for all critical defects. perfomed on a defect basis in ac
16、cordance with the classification of defects: zsing the szmpling plan and associated criteria in Table II. The totalnm- ber of allowable defects per class for either the major or minor classifica- tion shall not exceed the acceptance number of Table II. material shall be rejected, ing visual examinat
17、ion for inspection of such defects as burr and foreign matter All nonconforming Four power magnification may be used in perform- TABLE II Major Lot S iz e Sample Size Accept Reject 1 - 300 10% Examination- - 301 - 300 . 50 O 1 801 - i800 70 i 2 1801 -ioooo 200 2 3 4.2.2.1 Cartridge Assembly, P/N 293
18、09-0, covering a detail of P/N 29378-1 Defect Method of Inspection CRITICAL 1. Mixed cartridges Visual 2. Metal defective Visual 3. Sealing disc missing or damaged Visual 4. Marking missing, incorrect or illegible Visual MAJOR 101. Foreign matter 201. Case scratched, wrinkled, buled or dented 202. P
19、rotective finish, missing or inadequate 4.2.2.2 4ssem771y, P,h 23378-1, less P/K AiV56598K2 CRITICAL 1. Firing pin missing 2. Shear pin missing or not in groove Visual Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2.2.2 Assenbly, P/IV 2937
20、8-1, less P/X AE565D852 - Costd Defect Zone defined MINOR Kone defined 4.2.2.3 Assembly P/N, 29378-1 . CRITIC% 1. improper assenkly V%ma 3, Labels miss hg, incorrect or illegible Visual 2. Any parts missing V f Sij al MAJOR 101. Proper alignment Visual 102. Set screw missing, loose, above flush, or
21、not covered with sealing compound Visual 201. Location of labels incorrect Visual 202. Proective finish missing or inadequate Visual 203. Shipping cap missing Visual 4.2.2.4 Container, Ammunition, Fiber, Drawing Cg224217 CRITICAL None defined . Kone efined 201. Gap between boiiy and cover, max. Xanu
22、al 202. Contents loose Manual ?Zan-&al 203. Eletal ends loose or distorted 204. T? $suai Cut or damaged through all impregnated laye r s 5 .D Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-503(MU) MIL-F-50693 13 W 9999706 0330007 7 II .- 4.2.2
23、.G Container, Amunition, Fiber, Drawing C9224217 - Con%& Defect Method o Inspec-ticn 255. Ma?king, missing, incorrect or illegible Visual 2Q6, Tape incomplete or badly wrinkled Visual 207. Length of tear Lab, min. Visual 208. Color of tape incorrect Visual 4.2.2.5 Box, Packing, Ammunition, Drawing C
24、9224720 CRITICAL None defined MAJOR None defined MINOR - 201. Contents loose 202. 203. 204. Contents of box exposed 205. Marking missing, incorrect or illegible 206. Number of units incorrect 207. Hardware missing, loose, broken, or Strapping missing, loose, broken or improperly engaged improperly a
25、ssembled Car seal. missfig, unsealed or improperly positioned Manual Manual and Visual Manual and Visual Visual Visual Visual Visual 4.2.3 with 4.3. Inspection - The following tests shall be performed in accordance 4.2.3.1 Assembly torque - Threaded joints of each assembly shall be sub- Failure of a
26、ny asserabi.y to comply with the jected to thetorque application. requirement of 3.2 shall be cause for rejection of the assembly. 4.2.3.2 Residual magnetism - Each assembly shall be subjected to the test for excessive residual magnetism. requirerrents of 3.3 shall be cause for rejection of the asse
27、nbly. Failure of any assembly to comply with the 4.2.3.3 Gove rment . Functlonal tests - The following tests shall be perfomed by the 4.2.3.3.1 Ballistics - Twenty-one units shall be tested as specified in 4.3.3 to determine compliance with the requirements of 3.4.1 to 3.4.4. units shall be temperat
28、ure conditioned as provided in Table III and 4.3.3.1. Failure of any unit to comply with the requirements slia13. be cause for rejec- tion of the lot The 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-65O to -709 65O to 75OF 200 to 205% 7 7 7 NOTE
29、: - All. variable data gained at -65O and 2009 will be recc-csed a26 reported for information only. . 4.2.4 Inspection equipment - The examination and tests shall be made. using equipment approved by the Government. 4.3 Test methods and procedures 4.3.1 Assembly torque - A torque wrench, set at the
30、torque requirements specified in 3.2 shall be used in conjunction with an adapter to determine the adequacy of the joints. ing device and the assembly torque applied to the head. The firing mechanism shall be secured in a hold- .4.3.2 Residual magnetism - The assembly shall be tested for excessive r
31、esidual magnetism, in an area free of local. magnetic effects, by placing the assembly six inches from and at the same height as the compass in a north-south horizontal position (head end at south) with the compass set in an east-west heading. The assembly shall be moved slowly past the compass in a
32、 longitudinal direction for its entire length, rotated 90 degrees in the horizontal position about its longitudinal axis and moved slowly past the compass. This procedure shall be repeated for each 90 degree rotation of the firing mechanism. 4.3.3 Functional tests 4.3.3.1 Temperature conditioning -
33、Prior to conducting the ballistic test specified in 4.3.3.2, the assembly samples shall be subjected to the temperature condition specified in 3.4.4. A simulated assembly loaded with a dummy cartridge containing a temperature sensitive element shall be placed 2n the temperature conditioning chamber
34、at the same time as the assembly samples. The conditioning time shall be a minimum of one hour longer than the time necessary to bring the element contained in the dummy cartridge to the required temperature. 4.3.3.1.1 UFon completion of the required temperature coriditioning, each assembly sample s
35、hall be ballistically -bested within 5 minutes after rer:roval from the conditioning chamber. exceeded. Samples shall be reconditioned if this time is 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.3.3.2 .Method of testing - The firing mechanism
36、 shall be fired by a source delivering an output equal to that of an M3A1 Initiator at the end of i5 feet of aircraft hose, size No, 4, MS 28741 to determine conpliznce with 3.4. The firingmechanism shell be rigidly supported in a test fixtnre and fired into a 5.60 cubic inch volume for pressure tim
37、e performance. 5. PFBPARATION FOR DELIVEFX: 5.1 Packing and marking -Level A - Packing and marking shall Se LQ accorc- ance with drawings Cg224217 and C9224720. 6. NOTES: 6.1 Ordering data - Procurement documents should specify the title nmber . and date of this specification, 6.2 A mechanical failure is defined as any deformation or breakage of a part, the occurrence of which is other than a design function. Custodian: . 8 Preparing activity: Amy - MU - FA Project No. 1377-11412 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
