1、B p37-47 NIL-1-50412 13 N 9990b 0327088 3 -,- MIL-1-50412 (MU) 1 April 1973 SUPERSEDING ?A-PD-2623, Rev 1 -. 9 November i965 MILITARY SPECIFICATION INITIATOR ASSEMBLY FOR PRIMER, ELECTRIC, XM91E1 AND xnii7, PARTS FOR 1. SCOPE 1.1 This specification covers all parts for the initiator assembly for two
2、 types of electric primers esignated as Primer, Electric , XMglEl and XM117, 2. APPLICABLE DOCUMENTS 2-1 The following documents of the issue in effect on date of invitation for bids or request for proposal, forn a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MI
3、L-A-2550 - Ammunition an SpecLal Weapons; /f General Specification for. MIL-P-10025 - Packaging, Packing and Marking for MIL-1-45607 - Inspection Equipment , Supply and / Interplant Shi-ment of Inert Ammunit ion Components, General Specification for. Maintenance of. . . STANDARDS MILITARY MIL-STD-10
4、5 - MIL-STD-109 - MIL-STD-1168 - MIL-STD-1167 - ML-STD-286 - MIL-STD-414 - -. Sarngling Procedares and Tables for Inspection by Attributes Quality Assurance Terms and Definitions Lot Numbering of Armnition Ammunition Data Cards Propellants, Solid: Sampling, Examinations and Testing Sampling Procedar
5、es and Tables for Inspection by Variables for Percent Defective i FSC: 1320. 1-10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-1-50422 23 977990b 03270df 51 I MIL-1-50 4 12 (KU ) DR A? IN G S ORDNAMCE 9204185 Initiator, Sub-Assembly PUBLICAT
6、IONS ORDNANCE CORPS ET-9204185 Equipment Tabulation (Copies of specifications, standards, drawings, ar.d publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) . 2.2 Other publica
7、tions.-The following documents form a part of this specification to the extent specified herein. otherwise indicated, the issue in effect on date of invitation for bids shall apply. Unless AMERICAN SOCIETY FOR TESTING MATERIALS ASTM-D-792 Specific Gravity and Density of ASTM-D-1621 Compressive Stren
8、gth of Rigid Plastics by Displacement Cellular Plas tics (Copies may be purchased directly from the Anerican Society for Testing Materials, i916 Race Street, Philadelphia, Pennsylvania, 19103). 3. REQUIREMENTS 3.1 Material.-The materials and parts for the initiator subassembly shall be in accordance
9、 with the applicable drawings and specifications listed in 2.1. The materials for the outer cup and the inner sleeve shall have a tolerance of + 1 percent for tin, + 0.75 percent for the zince, ana + 0.5 percent for cadmium. - - 3.2 Stability.-The propellant for the front support shall not completel
10、y change the color of the methyl violet paper to salmon pink color in less than sixty (60) minutes when tested in accordance with 4.3.3.1. 3.3 Bulk Density,-The bulk density of the front support shall be 1.30 grams per cubic centimeter naximum when tested as specified in 4.3.3.2, 2 Provided by IHSNo
11、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-50412 13 R 9999906 0327090 1 = 161 L-1-5 O 4 12 (MU ) 3.4 Relative Quickness.-The relatLve quickness of the front support shall be not less than 3UO percent, when compared to 3126131 Propellant Lot RAD-65294 or Eq
12、ulvaent, and tested in accordance with 4.3.3.3 (see 6.5). 3.5 Crush strength.-The crush strength of the front support shall be 100 pounds minimum in the vertical direction and 40 pounds minimum in the horizontal direction when tested as specified in 4.3.3.4. 3. Workmanship.-All parts and assemblies
13、shall be fabricated and finished in a thorough, workmanlike manner. They shall be free of chips, cracks, dirt, grease, flux, rust, corrosion products and other foreign matter. The cleaning method used shall not be injurious to any part, nor shall the parts be contaminated by the cleaning agent. All
14、required markings shall . be neat and sharply defined, 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.-Unless otnerwise specified in tne contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherw
15、ise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specif
16、ication where such inspections are deened necessary to assure sugpies and services conform to prescribed requirements. Refereme shall be made to Standard MIL-STD-109 in order to derine terms used herein. The provisions of Specification MIL-A-2550 shall apply. 4.1.1 Submission of product.-At the time
17、 the completed lot of items deiverable under the contract is submitted to the Government for acceptance, the contractor shall supply the following information accompanied by a certificate which attests that the information provided is correct and applicable to the product being suSmitted: quality as
18、surance provisions specified in this specification. with an identification and date of chai, -pes thereto. contractoi- meets requirements, wnen such naterial is controlled by Government or corrmercial speclfications referenced in any of the contractual documents, and that certicates of conformance a
19、re on file and available for review. d. Number of items in the lot. e, Date submitted. a. A statement that the lot complies xith all of the b. Drawing and specification nunbe? and date , together c. A statement that ail material purchased by the 3 Provided by IHSNot for ResaleNo reproduction or netw
20、orking permitted without license from IHS-,-,-. - . . . MIL-I-50LI12 13 7997906 0327071 3 W MIL-1-50412 (MU) The certificate shall be signed by a responsible agent of the certifying organization. The initial certificate slibmitted shall be substantiated by evidence of the agents authority to bind hi
21、s principal, Substantiation of the agents authority will not be required with subsequent certificates unless, during the course of the contract, this authority is vested in another . agent of the certifying organization. 4.2 First article inspection 4.2.1 Submission. -Prior to initiation of regular
22、production, the contractor shallsubmit a first article sample to the Government facility designated by the contracting officer (see 6.4) for evaluation in accordance with the provisions of 4.2.2. The first article sample shall consist of 25 sets of initiator parts (i.e., bridge ribbons, inner sleeve
23、s, outer cups and front supports) which have been produced by the contractor or furnished by a supplier and which have been manufactured using the same production processes, procedures and equipment, which will be used in fulfilling the contract. All parts and materials, including packaglng and pack
24、ing, shall be accompanied by certificates.!of analysis for materials. A first article saniple, or portion thereof, as directed by the contracting officer, shall also be submitted whenever there is a lapse in production of 90 days, or whenever a change occurs in manufacturing process, material used,
25、drawing, specification, or source of supply so as to significantly affect product uniformity as determine by the Government, Prior to submission, the contractor shall inspect the sample to the degree necessary to assure that it conforms to the requirements of the contract and submit a record of this
26、 inspection with the sample. A sample containing known defectives will not be submitted unless specifically authorized by the contracting officer. 4.2.2 Inspections to be performed.-The components shall , be inspected for conformance to any or all of the requirements of this specification and any or
27、 all of the requirements of the applicable drawings 4.2.3 - Rejection.-If any component fails to comply with any or all of the applicable requirements, the first article sample shall be rejected, The Government reserves the.right to terminate its inspection upon the failure of 8 component in the sam
28、ple 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, the contractor is in no way authoriz
29、ed by the Government to initiate regular production unless otherwise directed by the contracting officer. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.3 Inspection provisions 4.3*1 Lct formation 4.3.1.1 Parts.-A lot of inner sleeves, outer cups,
30、 or front supports shall consist of parts produced by one nanufacturer in one unchanged process in accordance with the same drawing, and same drawing revision, same specification and same specification revision. Drawing, specification, and process changes not affecting safety, performance or interch
31、aneeability, as determined by the Government, shall not necessitate changing the lot interfix number. The criteria and procedures for the assignment of inspection lot interfix numbers shall be in accordance with Standap MIL-STD-1168. 4.3.1.2 Bridge ribbons.-A lot shall consist of all bridge ribbons
32、produced by one manufacturer to the same drawing, same drawing revision, sane specification, and same specification revi- sion using the same punch and die and stamped fFom one continuous roll of preforned ribbon which has been certified by the supplier as complying with the applicable material stan
33、dard, The criteria and procedures for the assignment of inspection lot interfix numbers shall be in accordance with MIL-STD-1168. 4.3.2 Examination.-Sampling plans and procedures for the following classifications of defects shall be in accordance with Standard MIL-STD-105 except that inspection for
34、critical defects, when listed, shall be 100 percent. Also, at the option of the procuring activity, AQLs and sampling plans nay be applied to the individual characteristics listed using an AQL of O. 40 percent for each major defect and an AQL of 0.65 percent for each minor defect. 4.3.2.1 Cup, outer
35、 (see drawing 9204178 covering a detail of drawing 9204185). Categories Defects Critical: None efined, Method of Inspection Ma j or : AQL 0.65 percent 101. Diameter, inner . Gage 102, Thickness, maximuni (max.) . Gage 201. Diameter, hole. . Gage Location of hole Gage (see 3.6) l.,.visuai through hol
36、e. .,Visual 103. Length .,.,.,Gage Minor: AQL .5 percent 202. 203. Evicence of poor worknanship 204. Cut out extends completely. Code No. (see 6.2) O1001 01002 01003 01004 01005 O1006 01007 P . rey, . .* 8, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
37、-,-,-MIL-1-50412 13 7779706 0327073 7 MIL-1-50412 (MU) 4.3.2.2 of drawing 9204185). Sleeve, 5nner (see drawing 9204183 covering a detail Cat egor ie s Defects. Method of Code No, Critical: None defined-. Inspection . (see 6.2) Major: AQL 1.0 percent 101, Outer diameter .,Gage 02001 102. Thickness, m
38、inimum (min.) Gage 02002 . . . 103. Improper number of detents .Visual 02003 104. Location of detents from flanged end of sleeve .,Gage 02004 105. Total length .:Gage 02005 106. Inside diameter between, detentsj max .o.,e.eGage 02006 Minor: . AQL 1.5 percent 02007 .- 201. Diameter of flange Gage 202
39、. Three detents not equally spacedVisual O2008 203. Evidence of poor workmanship (see 3.6) *.,Visua 02009 4.3.2.3 Support, front (see drawing 9204484 covering a detail of drawing 9204185). Categories Defects Method of Code No. Inspection (see 6.2) Critical: None defined. Major : .101. 102. 103. 104.
40、 105. 106. Minor: 201. 202, 203. 204. 205 AQL 1.0 percent Outer diameter, min .Gage Diameter of sleeve support hole, max 4*Gage Depth of plunger hole . Gage Concentricity of plunger hole to outside diameter,.,.Gage Concentricity of sleeve support Diameter of plunger hole, min . Gage hole to outside
41、diameter Gage Depth of ignition charge well .Gage AQL 2.5 percent Overall length .,Gage Width of ignition charge well, “in .Gzge Pyesence of test hole . Visual Evidence of poor workmanship (see 3.6) .*.VTsua 03001 03006 03007 03002 03010 O3011 03013 03012 6 . J Provided by IHSNot for ResaleNo reprod
42、uction or networking permitted without license from IHS-,-,-EIL-1-50412 (MU) 4.3.2.4 Bridge ribbon (see drawing 9204181 covering a detail of drawing 92011165). Categories Defects Method of Code No. f nspec t ion (see 6.2) Critical: None defined. Major: AQL 0.40 percent 101, Distance between radii al
43、ong 102. Thickness of ribbonuGags 04002 width . .*Gage . O4001 Minor: AQL 1.00 percent 201. Overall length less than minimumGage 04003 202. Evidence of poor workmanship (see 3.6) . Visual 04005 4.3.3 Testing 4.3.3.1 Stability (see 3.2), MaJor defect, Code No. 05001.-A stability heat test at 120 degr
44、ees C shall be performed in accor- dance with MIL-STD-286, Method 404.1.2. A ranom sample of five test specimens of 2.5 grams each shall be tested for each lot of propellant, Failure of any sample to meet the requirement of 3.2 is cause for lot rejection. 4.3.3.2 Bulk Density (see 3.3), Major defect
45、, Code No. 06001.- Lot sampling shall be in accordance with MIL-STD-414, Inspection Level IV with an AQL of 0.40 percent. Bulk derisity of individual front supports shall be determined in accordance with ASTM-D-792 using water as the imnersion liquid. If the sample fails the acceptance criteria the
46、-lot shall be rejected (see 6.6). 4.3.3.3 Relative Quickness (see 3.4), Major defect, Code No. 07001.-The relative quickness of the front support shall be determined at 8500 psi using a sufficient number of randomly selected front supports per lot to provide aloadinp; density of 0.2g/cc in a nominal
47、 200 cc closed bomb. A minimum of six separate tests shall be conducted for each lot. Testing shall be in accordance with MIL-STD-286, Method 801.1 and shall be conducte at 70 + 2OF If the average of the six values obtaine fails the requirement of 3.4, the lot of front supports shall be re:ected. 43
48、.3.4 Crush strength (see 3.5), Major Gefect, Horizontal direction Code No. 06001, Vertical d9rect;on Code KO. 08002.-0t sampling for each defect shall in accordance with MIL-STD-414, Inspection level IV with an AQL of 0.40 .erCent. Crush strenKth in each direction shall be determined in accordance w
49、ith ASTM-D-1621. f either sample fails :he acceptance criteria, the lot shall be rejected (see 6.6). L 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-50412 13 777770b 0327075 O MIL-1-50412 (MU) 4.3.4 Inspection Equipment,-Equipmen: Tabula2ion Number ET-9204185 identifies the inspection equlprncnt required to perform the examinations a
