1、/- 6;-37- 19 MTL- I -60476A( MI ) - 1 7 August 1979 Superseding 15 July 1967 MIL-I -60476( MU) MI L I TARY SPEC I FI CAT I ON IGNITER, MARK 125 MOD 5, LOADING ASSEMBLING AND PACKING This specification is approved for use by the US Army Missile Command, Department of the Army, and is avail- able for
2、use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1. - -. 1.1 Scope. This specification covers the quality assurance provisions and special requirements not covered by the drawings for the type of igniter designated MARK 125 MOD 5. . - -. -.- ._ - . . : . :_ ._.-= . .i :-. :
3、 . P. .“ . i:- . -, _ ._ i-; : a -. . .- 7 zycy - f- * DRAWINGS I-. i Navy 457888 - Igniter MI! 125 MG2 5 Looded Assembly LD 267523 - Container MK E, MOD C! * * * (Copies of specifications, standards, drawings, and pub1 i cations requi red by contractors in connection with specific procurement funct
4、ions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS * 3.1 Material. Materials shall be in accordance with drawings and specifications specified herein. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
5、rom IHS-,-,-flIL-I-bO476A 13 W 7Ob 0338b75 2 MIL- I -60476A( MI) 3.1.1 Char e The charge shall consist of the proper ratio by weight of black powd-dgi + 2x1, and coated magnesium powder (20 + 2%) evenly blended. The ignitercharge weight shall be between 8.5 andl0.5 grams, incl usi ve. * 3.1.2 Moistu
6、re content. The moisture content of the black powder, as loaded, shall be 0.5% maximum. * 3.2 Parts. The parts shall comply with all requirements specified 3.2.1 in MIL-I-60mgniter, MARK 125 MOD 5, Parts For. in MIL-S-1497 + , Squib MARK 1 MOD O, For 2.75 Inch Rocket. S uib. The squib shall comply w
7、ith all requirements specified * 3.3 Igniter assemblx. No powder grains shall be present at the con- tact surfaces of the cover and case before crimping. The completed igniter assembly shall not evidence, on any external surface, any trace of explosive composition or extraneous material affecting us
8、e, safety, or appearance. A suitable shorting device or method shall be applied to the bare ends of the lead wires before storage and shipping. _- _-._-. -_ * 3.4 Igniter functioning. The igniters, when subjected to a direct current (D.E.) firing current of 1.5 + 0.15 amperes at the specified temper
9、a- tures, shall function with no indicatTon of ejecta. Each igniter shall function within the time specified in 4.3.3.5. 3.5 Transporation vibration. The igniters, after being subjected to conditions simulating those encountered in transportation and service, shall be airtight, have proper electrica
10、l continuity, and insulation resistance, and shall function at the three temperatures specified. The igniter, after being vibrated and checked for electrical cont nu ty, and insulation resistance, shall be subjected to the airtightness test and shall show no evidence of air leakage at normal room te
11、mperature of 7OoF 5 10F (21OC +- 5.5OC). 3.7 Workmanshi . Loading and assembling shall be accomplished in accordance w -mi6-E est practices. All parts shall be free of any foreign matter. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the cleaning
12、agent. Surface coatings shall be continuous except for a few light scratches which do not expose base material. All required marking shall be neat and sharply defined. .I - _ t i. - _.- - . . . . . _ ._ I. -.-. _. -_ _- - 3.6 Airti htness + * . _ - .VA f .,.- I- i *, . -:. -1 s -. -_ m. i :i: I -. c
13、 ., -. . =* -. . 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_I I - MIL-I-hO47hA li3 = 9379906 033b96 4 W MIL- I-60476A (MI) 3.8 First article inspection. This specification makes provisions for first article inspection. article samples by the
14、contractor shall be specified in the contract. Requirements for the submission of first 4. QUALITY ASSURANCE PROVISIONS * 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of al 1 inspection requirements a
15、s specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any comercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to a
16、ssure supplies and services conform to prescribed requirements. shall be made to MIL-STD-109 In order to define terms used herein. The provisions of MIL-A-2550 shall apply. product is submitted to the Government for acceptance, the contractor shall supply the following information accompanied by a c
17、ertificate which attests that the information provided is correct and applicable to the product being submitted: Reference 4.1.1 Submission of product. At the time the completed lot of a. A statement that the lot complies with all of the quality b. Number of units product inspected. c. Results obtai
18、ned, by defect code, for all inspections performed. d. Drawing, specification number and date, together with an e. Certificates of conformance on all material purchased by the assurance provisions specified within this Specification. i . identification and date of changes. contractor when such mater
19、ial is controlled by Governwnt or commercial specifications referenced in any of the contractual documents. f. Number of items in the lot. g. Date submitted. The certificate shall be signed by a responsible agent of the certifying organization. The initial certificate submitted shall be substantiate
20、d by evidence of the agents authority wfll not be required with subscquent certificates unless during the course of the contract, this authority is vested in another agent of the certifying organization. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
21、,-,-_ NIL-I-bO47bA 13 797740b 0338677 b MIL-I -60476A( MI) 4.1.2 Government verification. Using the contractors written quality assurance procedure, this detailed specification, the applicable drawings and other contractual documents as a guide, the Government inspector shall verify at unscheduled i
22、ntervals, al 1 quality assurance operations performed by the contractor. Verification will be performed to the extent necessary to assure compliance with the contractual requirements. Severity of Government inspection of individual character- istics will be directly related to the seriousness of the
23、 classification assigned. In no instance will a characteristic classified “critical“ be accepted solely on the basis of the contractors records. 4.2 First Article Inspection f 4.2.1 First article sample. The contractor shall submit a first article sample of ninety (90) oaded assemblies and forty-fiv
24、e (45) unloaded assemblies to the Government for testing in accordance with the provisions of 4.2.2. All parts and materials shall be the same as will be used in production and shall be obtained from the same source of supply. Prior to submission, the sample shall be inspected by the contractor to t
25、he degree necessary to assure that it conforms to the requirements of the contract. A first article sample or portion thereof, as directed by the contracting office, shall also be submitted whenever there is a lapse in production for a period in excess of 90 days or whenever a change occurs in manuf
26、acturing process, material used, drawing or specification such as to significantly affect production uniformity as determined by the Government. 4.2.2. Inspections to be performed. Assemblies and components will be submitted by the Government to any or all of the examinations or tests specified in 4
27、.3.2 and 4.3.3 of this specification and any or all of the drawings. 4.2.3 Re ection. If any assembly or component fails to comply with any of the app -.k-sr ca e requirements, the first article sample shall be rejected. The Government reserves the right to terminate its inspection upon any failure
28、of an assembly or component in the sample to comply with any of the stated requirements. In the event of rejection, the Government reserves the right to require the contractor to take corrective action and submit a new first article sample or portion thereof. Until a first article sample is accepted
29、, the contractor is, in no way, authorized by the Government to initiate regular production unless otherwise directed by the Contracting Officer. 4.3 Inspection provisions for production. 5 /,- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-bO
30、LI76A 13 W 77777Ob 0338678 B MIL-I-60476A( MI ) i 4.3.1 Lot formation. The term “lot“ as used throughout this specification refers to an inspection lot, which is defined as an essentially homogeneous collection of units of product from which a representative sample is drawn and inspected to determin
31、e conformance of the lot with applicable requirements. The sample selected shall represent only that quantity of units from which the sample was drawn and shall not be construed to represent any prior or subsequent quantities presented for inspection. Homogeneity shall be considered to exist provide
32、d the lot has been produced by one manufacturer, in one unchanged process, in accordance with the same drawing, specification or revision thereof. Changes to either the process, specification or drawing not affection safety, performance, interchangeability, or storage, as determined by the Governmen
33、t inspector, shall not be deemed to alter the homogeneity of the lot. Inspection lots shall comply with MIL-STD-105 and shall be numbered in accordance with MIL-STD-1168. Each loaded igniter lot shall consist of: a. Parts from three lots or less from one interfix from one manufacturer. b. Squibs fro
34、m one interffx from one manufacturer. Unless otherwise approved by the contracting officer, the inspection lot size of major assemblies or end items deliverable under the contract shall be not less than the smallest weekly estimate of quantities con- tractually scheduled for production during the co
35、ntract period nor more than the largest quantity contractually scheduled for delivery during any month of the contract period, but never less than 1201 assemblies. Inspection lots for components or subassemblies, other than the items of delivery shall be homogeneous and of a size convenient to the c
36、ontractor. * 4.3.2 Examination. Sampling plans and procedures for the following classifications of defects shall be in accordance with MIL-STD-105 except that inspection for critical defects when listed, shall be 100 percent. Continuous sampling plans In accordance with MIL-STD-1235 may be used if a
37、pproved by the procuring activity. Also, at the option of the procuring activity, AQLs and sampling plans may be applied to the individual characteristics listed using an AQL of 0.40 percent for each major defect and an AQL of 0.65 percent for each minor defect. Once agreement has been reached as to
38、 which method will be used (Group or Individual) that method will be used for all of the classification of defects (CDs) listed in this specification. Equipment necessary for the performance of the inspections listed shall be in accordance with 4.3.4. . . 6 . -. . .- a ._ . . . - . . - . -. -. - . P
39、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. ;. . .:. :.a. .s . ., . ,:,-:. i . .- ,8:.:. . - : ;: t. E- . -.-i L:.-: -_ -. - MIL-I -60476A( MI ) * * * * * 4.3.2.1 Igniter MK 125 MOD 5 loaded assembly (see dwg 457888). Categories Defects Method o
40、f Inspection Code No. Critical : . O1 006 1. Lead Wire ends not short circuited .Visual 2. Presence of complete coined area . .Visual O1 007 Major: AQL 0.65 percent 101. Cover crimp not continuous or not uni form. . .Vi sual o1 O01 102. Evidence of scalloping or fractures on cover . .Visual o1 002 1
41、03. Dip finish incomplete . Visual O1 003 Mi nor: AQL 1.5 percent 201. Marking missing, misleading, or O1 004 202. Bare straight wire, length, min. Gage O1 005 203. Evidence of poor workmanship (see 3.7). .Visual O1 008 4.3.2.2 Igniter case and squib assembly (see dwg 457890 covering uni denti f tab
42、1 e. .Vi sual a detail of dwg 457888). Categories Defects Method of Inspection Code No. Major: AQL 0.65 percent 101. Distance, max, end of squib lead insulation in case and adjacent end 02002 102. Lead wires sol dered incorrectly. . .Vi sual 02003 103. Insulating compound coating improper . .Visual
43、02004 104. Insulating sleeves assembled improperly.Visua1 02005 105, Presence of insulating compound on coin or within periphery of the coin on inside or outside of case . Visual 02006 106. Any portion of squib positioned over any portion of coined area of caseVisual 02008 of terminal tube . .Gage 0
44、2007 * Minor: AQL 0.65 percent 201. Evidence of poor workmanship (see 3.7). .Visual 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-6047bA 13 = 7979906 0338700 2 MIL-I -60476A( MI ) 4.3.2.3 Insulating sleeve (see dwg 1127334 covering a detail
45、 of dwg 457888). Categories Critical: None defined Defects Method of Inspecti on Code No. Major: None defined * Mi nor: AQL 1 .O percent 201. Length .Gage 03001 202. Evidence of poor workmanship (see 3.7) .Visual 03002 * 4.3.2.4 Insulating sleeve (see dwg 1127337 covering a detail of dwg 45788B). Ca
46、tegories Defects Method of Inspection Code No. Critical : None defined Major: None defined - - -.-cJ . . * -. . .- . -:. -_.* . . . - ,.:- . . Mi nor: AQL l .O percent i- w * *- . 201. Length . .Gage 04001 * 202. Evidence of poor workmanship (see 3.7) .Visual 04002 7 -I- - 4.3.3 Testing * 4.3.3.1 El
47、ectrical circuit and continuity test (see dwg 457888) - Major defect - Code No. O1009 . Each lot of igniters shalr be tested as specified in 4.4.1 using equipment in accordance with 4.3.4. The sampling plan for this test shall be in accordance with MIL-STD-105 using an AQL of 0.15 percent. If the sa
48、mple fails the AQL reject level, the lot shall be rejected. * 4.3.3.2 Insulation Breakdown Test (see dwg 457888) - Major defect - Code No, 01010. Using the acceptable samples from 4.3.3.1 test the igniters as specified in 4.4.2 using equipment in accordance with 4.3.4. An AQL of 0.15 percent applies
49、. If the sample fails the AQL reject level, the lot shall be rejected. Samples from this test returned to the lot shall have the lead wire ends short circuited and verified by the Government representa- tive prior to return to the lot. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I -_ MIL-I-bO47bA 13 7777906 O338703 4 MIL-I -60476A(MI) (see 3.5
