1、d i 6 MIL-I-46619il MU) 4 15 April 196 SUPERSEDING MIL-I-46619(ORD) 3 January 1962 MILITAY SPECIFICATION INITIATOR, DELAY, MUA1 AssnmLy 1. SCOPE 1-1 This Specification covers Initiator, Delay, M12A1 Assembly, loaded with Cartridge, Delay, M71 for use in conjunction with other cartridge actuated devi
2、ces in aircrew emergency escape systems. 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 specification to the extent specified herein. SPECIFICATIONS Military : MIL-A-255 O - STAM)ARDS Military -. MI
3、L-STD- 105 - MIL-STD -1 o9 I MIL-STD-414 - MS -2 8741 DR4VINGS Munitions Command - F85 93 i5 9 Ammunition and Special Weapons, General Specifications For Sampling Proc-edures and Tables for Inspection by Attributes Quality Assurance Terms and Definitions Sampling Procedures and Tables for Inspection
4、 Hose Assembly, Detachable End-Fitting, Medium by Variables for Percent Defective Pressure Initiator, Delay, X13A1, Assembly FSC 1377 ., / . THIS DOCUMENT CONTAINS 1 d PAGES. - c3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Munit ons Command ca79
5、 6826 C8796827 IEL - 8593 15 9 - Container; Ammunition, Fiber M375 For - Box, Packing, Ammunition or Initiator, - Inspection Equipment List for Initiator, Initiator, Delay, M4A1, M6A1, M12A1 or M33 Delay, M6A1, M12A1 or M33 Delay, M12A1 Assembly (Copies of specifications, standards and drawings requ
6、ired by contractorsin connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 General.- Materials, parts and assemblies shall comply with the requirements specified on the applicable drawings and re
7、ferenced specifications. 3.2 safety pin, cartridge, cartridge retainer and chamber shall release from the cocked position when the application of an axial load of 20 to 35 pounds has withdrawn the initiator pin 3/4 inches, maximum. Firiw pin release.- The firing pin of the assembled initiator, less
8、3.3 initiator pin security.- Application of an axial load of 200 to 220 pounds to the initiator pin on the assembled initiator shall not withdraw the initiator pin past the safety pin. 3.4 Breakaway torque,- The chamber and cap of the assembled initiator shall withstand a breakaway torque applicatio
9、n of 400 inch pounds without loosening or deformation. 3.5 Residual magnetism.- The initiator 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. 3.6 Functional. 3.6.1 Ballistics.- Initiators loaded wit
10、h accepted cartridges and tempera- ture conditioned shall produce pressure values specified in Table I. values shall be recorded at the end of 3 feet of aircraft hose, size 4, in accordance with MS-28741. Pressure 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
11、 from IHS-,-,- MIL-I-4bbLSA 13 977790b 0313582 7 W MIL-I -4 6G 1 YA (NU ) 3.6.1 (Contd) TABLE I . Ignition Delay Temperature Pressure (PSI) (See 6.2) -65 to -70F 65 to 750F 160 to 165 F 1300 to 2200 1300 to 2200 1300 to 2200 1.30 seconds, maxi 1.0 5 0.1 seconds 0.80 second, min. 3.6.2 The initiator
12、shall not fail to fire. 3.6.3 The initiator shall function without mechanical failure (see 6.3). 3.7 Workmanship.- Xequirements for workmanship are as specified on the applicable drawings, referenced specifications and the following. 3.7.1 Metal defects.- The part shall be free from cracks, splits,
13、cold shuts, inclusions, porosity or other metal defects. 3.7.2 Burr.- The part 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. 3.7.3 Foreign matter.- The part or assembly shall not contain chips, dirt,
14、grease, rust, corrosion or other foreign matter. 4. QUALITY ASSWCE PROVISIONS 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible or the performance of all inspection requirements as specified herein. specified in the contract
15、 or order, the supplier may use his own or any other facilities suitable for the performance 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 inspecti
16、ons are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise 4.1.1 Quality assurance terms and definitions.- Reference shall be made to ELL-STD-109 to define the quality assurance terms used. 4.1.2 Inspection.- Inspection shall be in accordance wit
17、h MIL-A-2550. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-I-4bbLSA 33 977990b 0333583 9 - HIL-I -4 6619A (MU) 4.2 Inspection provisions. 4.2-1 4.2.1.1 Submission of product.- The contractor shall submit the product 4.2.1.2 Size of lot.- A
18、 lot shall consist of an identifiable group of in accordance with MIL-STD-105 or MIL-STD-414, as applicable. assembled units containing metal parts assemblies produced by a homogeneous process and loaded with accepted cartridges. 4.2.2 Examination.- One hundred percent examination shall be performed
19、 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 Table II. The total number of allowable defects per class for either the major
20、 or minor classification shall not exceed the acceptance number of Table II. All non- conforming material shall be rejected. Four power magnification (413 may be used in performing visual examination for such defects as burr and foreign matter. TABLE II 4.2.2.1 Cartridge, Mn, Drawing D8593162, cover
21、ing a detail of Drawing F8593159 . Defect - CRITICAL Method of Inspection 1 . Mixed cartridges Visual 2. Metal defective Visual 3. Marking missing, incorrect or illegible 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- NIL-I-4bbLSA 13 m 9799906 O3
22、33584 O m 4.2.2.1 (Contd) MIL - I -46 6 19A (MU) Defect - MAJOR 101. Case scratched, dented, wrinkled or bulged - 102. Varnish missing or inadequate Method of Inspection Visual Visual MINOR None defined 4.2.2.2 Assembly, Drawing F8593159, less Drawings D8593314, D8593313 and D8593162. CRITICAL 1. Mi
23、xed initiators 2. 3. Initiator not in cocked position Safety pin missing or improperly engaged MAJOR 101. O-ring missing ornot lubricated 102, Thread damaged 103. Burr 104. Foreign matter MINOR Visual Visual Visual Visual Visual Visual Visual None defined 4.2.2.3 Assembly, Drawing F8593159, less Dra
24、wings D8593314 and i38359536 CRITICAL 1. Cartridge loose Manual and Visual 2. Cartridge retainer loose Manual and Visual 3. Metering groove of cartridge retainer missing Visual 4. Elongated holes of cartridge qetainer missing Visual 5 - -.- Provided by IHSNot for ResaleNo reproduction or networking
25、permitted without license from IHS-,-,-MIL-I-4bb19A 13 777990b O313585 2 W 4.2.2.3 (Cont Id) Defect - MAJOR Method of Inspection 101. Burr Visual 102. Foreign matter - Visual MINOR I None defined 4.2.2.4 Assembly, Drawing F8593159, less Drawing B8359536. CRITICAL 1. Cartridge retainer location 2. Fo
26、reign matter in gas port NA JOR 101. 102. 103. Length from cap boss face to gas port face Protrusion of initiator pin, max. Set screw missing, loose or above flush Gage Visual *. Gage Gage Manual and Visual MINOR Xone defined 4.2.2.5 Initiator, Delay, M12A1, Assembly, Drawing F8.593159. CRITICAL 1.
27、Cartridge retainer not properly secured against base of firing pin housing Gage 2. Cap not secured into chamber to assure tight seating of base against cartridge retainer Gage 3. Any part missing, except as otherwise classified Visual 4. Improper assembly Visual 5. Marking missing, incorrect or ille
28、gible 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-4bbL7A 13 U 7779706 03135b 4 4.2.2.5 (Contd) MAJOR 101. 102. 103 . MINOR 201 . 202. 203. 204. 205. 206. 207 . Defect - Length of pull pin protrusion, max. Safety pin loose or deformed Init
29、iator pin not free to rotate . Length from exhaust port to forward end Total length, max. Height of cap boss, ma. Barrier compound missing from set screw Shipping cap missing Varnish missing or inadequate Protective finish inadequate or defective of initiator, max, Method of Inspection . Gage Visual
30、 Manual 4.2.2.6 Packing in Fiber Container, Drawing C8796826. CRITICAL None defined None defined MINOR 201. 202. 203 , 204. 205 . 206. 207. 208. Gap between body and cover, max. Contents loose Metal ends loose or distorted Cut or damaged through all impregnated layers Marking missing, incorrect or i
31、llegible Tape incomplete or badly wrinkled Length of tear tab, min. Color of tape incorrect . 4.2.2.7 Packing, Wooden Box, Drawing C8796827. CRITICAL None defined 7 Gage Gage Gage Visual Visual Visual Visual Manual Manual Manual Visual Visual Visual Visual Visual ,. i) .-z Provided by IHSNot for Res
32、aleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-YbbLSA 23 7799706 0323587 b M1L - 1-4 66 19A (EIU ) 4.2.2.7 (Cont d) Defect MAJ0t: None defined Nethod of Inspection 201. Contents loose 202. Hardware missing, loose, broken or improperly engaged 203. Strapping missing, l
33、oose, broken or improperly ass emb 1 ed 204. Contents of box exposed 205. Box damaged 206. 207. Number of units incorrect 208. Marking missing, incorrect or illegible Car seal missing, unsealed or improperly positioned Manual Manual and Visual Manual and Visual Visual Visual Visual Visual Visual 4.2
34、.3 inspection testing.- The following tests shall be performed in accordance with 4.3. 4.2.3.1 Firing pin release.“ The initiator pin of each subassembly shall be subjected to the firing pin release test. to comply with the requirements of 3.2 shall be cause for rejection of the subassembly . Failur
35、e of any subassembly 4.2.3.2 Initiator pin security,- The initiator pin of each subassembly Failure of any sub- i shall be subjected to the initiator pin security test. assembly to comply with the requirements of 3.3 shall be cause for rejection of the Subassembly. 4.2.3.3 Breakaway torque.- The ini
36、tiator chamber and cap of each assembled initiator shall be subjected to the torque application. of any unit to comply with the requirements of 3.4.shall be cause for rejec- tion of the assembly. Failure 4.2.3.4 Residual magnetism.- Each initiator shall be subjected to the Failure of any initiator t
37、o comply test for excessive residual magnetism. with the requirements of 3.5 shall be cause for rejection of the initiator, 4.2.3.5 the Government. Functional tests.- The following tests shall be performed by 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
38、 IHS-,-,-MIL-I -466198 (MU) 4.2.3.5.1 Ballistics.- Twenty-one units shall be tested to determine compliance with the requirements of 3.6.1, 3.6.2 and 3.6.3. be temperature conditioned as provided in Table 111 and 4.3.5.1.1. variable sampling plan of MIL-STD-414, Example C-2 or (2-3, as applicable fo
39、r the AQL listed in Table III, shall be used for each sample of 7 units. Failure of any unit to comply with the requirements of 3.6.1 or 3.6.2 or failure of a sample to meet the criteria of the variable sampling plan shall be cause for rejection of the lot. The unit shall The TABLE III Temper at ur
40、e -65 to -7O0F 65: to 75F 160 to 165OF Sample Size 7 7 7 O. 65% O . 65% O. 65% 4.2.4 Inspection equipment.- The examination and tests shall be made using equipment listed on SEL-8593159. 4.3 Test methods and procedures. 4.3.1 Firing pin release.- A pull shall be applied to the initiator pin in the l
41、ongitudinal direction, in conjunction with the applicable fixture which registers the amount of pull. 4.3.2 Initiator pin security.- A pull shall be applied to the initiator pin in the longitudinal direction in conjunction with the applicable fixture which registers the amount of pull. safety pin in
42、 both positions. The test shall be performed with the 4.3.3 in 3.4 shall be used in conjunction with a fixture to determine the adequacy of the joint. Tb initiator body shall be secured in an air vise or holding fixture. Breakaway torque.- A torque wrench set at the requirement specified The torque
43、shall be applied to the cap. 4.3.4 Residual magpetism.- The initiator shall be tested for excessive residual magnetism in an area free of local magnetic effects by placing the initiator 6 inches from and at the same height as the compass, in a north- south horizontal position (cap end at south) with
44、 the compass set in an east- west heading. longitudinal direction for its entire length, rotated 90 degrees in the horizontal position about its longitudinal axis and moved slowly back past the compass. initiator. The initiator shall be moved slowly past the compass in a This procedure shall be repe
45、ated for each 90 degree rotation of the 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-4bb17A 13 = 9777906 0333587 T . FIIL- I -4 6 6 19 A (MU ) 4.3.5 Functional. 4.3.5.1 Ballistics.- The sample shall be rigidly supported in the test fixture
46、. the conditioning chamber. shall be reconditioned in accordance with 4.3.5.1.1. The sample shall be tested within 5 minutes after removal from When this time limit is exceeded, the sample unit 4.3.5.1.1 with a dummy m1 cartridge, containing a temperature sensitive element, shall be placed in the co
47、nditioning chamber at the same time as the samples. The 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 re- quir ed temp era ture * Temperature conditioning.- A standard Mlalinitiator loaded 5. PREPARATION F
48、OR DEIVEXY 5.1 Packing and marking.- Packing and marking shall be in accordance with Drawings C8796826 and C8796827. 5.2. Data cards.- Data card information shall be as specified in MiL-STD-1167. 6. NOTES 6.1 Ordering data.- Procurement documents should specify the title, . number and date of this s
49、pecification. 6.2 A mechanical failure is defined as any defornation or breakage of a part, the occurrence of which is other than a design function. 6.3 Ignition delay is defined as the time that elapses between the firing of the pressure element and the beginning of the continuous pressure rise on the pressure time record. Custodian : Army - xu Preparing activity: Ar
