1、MIL-D-50778 33 E 77797Oh 0333323 2 E MIL-D-50938 7 December 1971 MILITARY SPWIFICATION - 1.1 This specification covers the inspection of tne parts and the loading, assembling and packing of a stab type delay detonator designated the b176. 2 APPLICABLE DOCUMENTS 2.1 The following documents of the iss
2、ue 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-R-398 - RDX MIL-A-2550 MIL-D-22264 - Powder, Ignition, Gasless - Amilunition and Special Weapons, General Specificat ion for STANDARDS M
3、ILITARY MIL-STD-105 MIL-STD-109 MIL-STD-650 MIL-STD-1168 - Lot Numbering of Ammunition MIL-STD-1235 - Single and Multilevel Continuous - Sampling Procedures and Tables for Inspection by Attributes (ABC-STD-105) - Quality Assurance Terms and Definitions - Explosives; Sampling, Inspection and Testing
4、Sampling Procedures ana Tables for Inspection by Attributes 1 FSC: 1330 1 - . THIS DOCUMENT CONTAINS 8 I PAGES- : - .L 0 -T. c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DRAW1 MGS U. S. ARMY IWNITIONS COM?AND 9234579 - Detonator, Stab, Delay, 14
5、76 9258182 - Box, Set-up, Packing, Amunition, Inner for Small Sxplosive Conponents 3258183 - Eiox, Set-up, Packing, Amriunition, Outer fop Small Explosive. Cor,ipnents 9258184 - Box, Packing, Amiunition for Small Explosive C oinp on en t s PUBLICATIONS U. S. ARMY MUilITIONS COfu”viAIi2 ET-9234579 -
6、Equipment Tabulation (Copies of specifications, stanciarcls, drawings and publications required by suppliers in connection with specipic procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 Asserab1y.-The detonator assem
7、bly shall comply with all requirements specified on Drawing (dwg.) 9234579 and with all requirements specified in applicable specifications. explosives at the loading station at the tine of loading the detonators shall not exceed the percentage specified in Table I when tested as specified in 4.4.1.
8、 3.2 Moisture content.-The moisture content of the following TABLE I Explosive Percentage Test Procedure Primer mixture 0.30 maximum (max.) 4.4.1.1 Igniter mixture Lead azide RDX Delay Composition 2 0.30 max. 4.4.1;2 0.50 max. 4.4.1.3 0.50 max. 4.4.1.4 0.50 max. 4.4.1.5 Provided by IHSNot for Resale
9、No reproduction or networking permitted without license from IHS-,-,-MIL-D-50998 13 7797906 0333323 b I - - _- L MIL-D- 5 o 9 g 8 3.3 Functioning,-The detonator asseribly shall not fail to fire on the first attempt and snall comply with the following requirements when coriditioned at anbient tempera
10、ture, cold temperature anci water irmiersiorir attempt in not less than thiity (30) nor more than seventy (70) milliseconds when tested as specified in 4.Q.2.1. 3.3.2 Output.-The detonatoia assembly shall fire on the first attempt under an applied energy of sixteen (16) inch ounces maximum (max.) an
11、d shall make a 0.567 Inch minimuni (min.) diameter perforation in a 0.131 inch min. thick lead disc with a 1/8 inch max. hole in its center when tested as specified in 4.4.2. and loaded in a thorough, workmanlike rnanrier. of burrs, chips, sharp edges, cracks, surface defects, dirt, grease, rust, co
12、rrosion 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. be neat; and sharply defined. 3.5 First article inspection.-This specification makes provisions for first article inspection. submission o
13、f first article samples shall be as specified in the contract. 3.3.1 Tirne.-The detonator assembly shall fire on the first 3.4 Workmanship,-All parts and assemblies shall be fabricated They shall be free All require markings shall Requirements for the 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibili
14、ty for inspection.-Unless otherwise specified, in the contract or purchase order, the supplier is responsible for the performance of all iiispection requirements as specified herein. or order, the supplier may use his own or any other facilities suitable for the performance of the inspection require
15、ments specified herein, unless disapproved by the Government. The- Government reserves the right to perform any of the inspections se forth in the specification where such inspections are deemed necessary to assure supplies and services and services conform to prescribed requirements. Reference shal
16、l be made to MIL-STD-109 to define terms used herein. Except as otherwise specified in the contraet The provisions of MIL-A-2550 shall apply 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-50978 13 I 9777706 0333324 8 7- MIL-D-OW 4.1.1 SubIni
17、ssiorl of product.-At the tir.%? each coinpleted lot of iteins deliverable uner the contract is subrnitted to the Govermient for acceptance, the contractor shall OUpgljr tne following information accor;ipaiiied by a certificate which attests that the information provldeci is correct and applicable t
18、o the product being sub:nitted: A statemnt that the lot complies i5th a31 of the quality assurance provisfons specifred In this specification. Drawing and specification nui_nber and date, together with identification and date of changes thereto. contractor meets requiroInerits, when such ciaterial i
19、s controlled by Government or cormercial specifications referenced in any of the contractual ciocuments, anci that certificates of conformance are on file anci available for review, except that a statement of findings for the moisture content of each explosive shall be submitted with each lot subrni
20、tted for acceptance. a. b. C. A statement that all mterial purchased by the d. Nuniber of items in the lot. e. Date submittecl. The certificate shall be signeil by a responsible agent of tne certifying organization. The initial certificate submitted shall be substantiate by evidence of the agents au
21、thority to bind his 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.-The contractor s
22、hall submit a first article sample as designated by the contracting officer for evaluation as specified herein. The first article shall consist of inert parts (see 4.2.2) and loaded detonators (see 4.2.3) which have been produced by the contractor or furnished by a supplier and which have been manuf
23、actured using the same pro- duction processes, procedures and equipment which will be used in fulfilling the contract. All parts and materials, shall be - obtained from the same source of supply as will be used in regular production. Prior to submission, the contractor shall inspect the sample to th
24、e degree necessary to assure that it conforms to the requirements of the contract and he shall submit a record of this inspection with the sample, including certificates Of conformance of materials. A sample containing known defects 4. 5.: .:a - Provided by IHSNot for ResaleNo reproduction or networ
25、king permitted without license from IHS-,-,-MI L-D- 5 O 9 9 8 shall iiot be submitted unless specffically autiiorized by the contracting officer. A first article sar!iple, or portion thereof, as directed by the contracting officer shall also be submitted whenever a change occurs in rnanfacturing pro
26、cess, material used, drawing or specification such as to significantly affect product unifoririity as deternineci by the Government. 4.2.2 Inert parts.-A sahiple of twenty-five (25) each of every part shall be submitted in accordance with the provisions of 4.2.1, for inspection as specifie in 4.2.2.
27、1. 4.2.2.1 Inspections to be performe.-The parts will be subjected by the Government to any or all of the applicable examinations specified in 4.3.2 of this specification and any or all requirements of the applicable drawings. the requirements, the first article sample shall be rejected. The Governm
28、ent reserves the right to terminate its inspection upon the failure on an item to comply with any of the requirements. sample of forty-two (42) detonator assemblies to the Government for examination as specified in 4.3.2.6 anti testeci as specified in 4.2.3.i. assemblies shall be cold temperature co
29、nditioned and fired to determine time and output, and ten (10) detonators shall be water immersion conditioned and fire for time and output determination. Rejection.-The loaded first article sample shall be rejected if any detonator fails to comply with a requirement. the event of rejection, the Gov
30、ernment reserves the right to terminate its inspection upon any failure of a detonator to comply with any of the stated requirements. 4.2.2.2 Rejection.-If any part fails to comply with any of 4.2.3 Loaded detonators.-The contractor shall submit a 4.2.3.1 Tests to be perforriledo-Thirty-two (32) det
31、onator 4.2.3.2 In 4.3 Inspection provisions 4.3.1 Lot formation.-The term “inspection lot“ as used in this specification is defined as an essentially homogeneous collection of units of product froin which a representative sample is drawn and inspected to determine conformance with applicable require
32、ments. The sample selected shall represent Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* ; MIL-D-50998 - 13 I 797970b 0333326 1 = MIL-D-50 9 9 8 only that quantity of units from which the sariple was drawn and shall not be construed to represriet
33、 any prior of silbscquerit quantities presented for inspection. tIOr9 eneity shall be considered to exist provided the inspects by one manufacturer in one unchanged process, using the same materials and methods in accordance with the sane drawing, sane drawing revision, same specification and same s
34、pecification . revision anci cornplies with the provisions for subiiiission of product as specified in MIL-Sf3-10*7. specification, Qr crawing not affecting safeby, performance, interchangeability, or storage, as deterrriiried by the Government, shall not be deemed to alter the homogeneity of an ins
35、pection lot, All material subraitted for-inspection in accordance with this specification shall conply iiith the honiogeneity criteria specified herein regardless of the type of sanplirlg procedure which is being aplie to deterinine conforinance with requirements Lot numbering, as required, shall bo
36、 in accordance with MIL-STD- 1168. Each inspection lot of Iroadeu iletonat.ors shall contain: lot has been Produced Changes to the process, a. Metal parts from not more thaii one lot number from one supplier. b. Primer mix PA-100, igniter mixture, or delay composition.-Each explosive fron not more t
37、han one batch or blend of batches which restlts in homogeneity of each explosive used in loading a lot. (2) lots produced by the sane manufacturer in accordance with the same specification and same specification revision and which have subsequently been subjected to uniformity controlled rying ana o
38、perating conditions at the loading plant. c. Lead azide of the Sam type from not more than two Ci. RDX from not more than one lot from one supplier. 4.3.2 Examination.-The examination listed in the following subparagraphs shall be performed on inspection lots (see 4.3.1) of the components or assembl
39、ies designateci in the applicable paragraph heaaings. Inspection for critical defects (and major defects, when so specified) shll be 100 percent-. Sampling plans for major and minor defects shall be in accordance with MIL-STD- 105 except that continuous sampling plans in accordance with MIL-STD-1235
40、 may be used if approved by the Government. Instead of applying the AQLs designated herein to the groups of major - and minor defects listed, the contractor may elect to apply AQLs to individual defects using an AQL of 0.40 percent for each major defect and AQL of 0.65 percent for each minor defect;
41、. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-When this the major paragraph is stsecif MIL-D-50998 13 m 999990b 0333327 3 m method is elected, it shall be applied to all of anci minor defects listed in the applicable sub- of tnis section, except
42、where 100 percent inspection ed, and be documented as part of the contractors Equipment necessai-y for the perforiiiance inspection system. of the inspections listed shall be in accordance with 4.3.4. 4,3.2.1 3ociy (see dwg. 9234582 covering a detail of dwg. 9234579,) Coae No. Categories Defects Met
43、hou of Inspection Critical: None defiiie Major: AQL 1.00 percent 101. Large outside diaraeter of body max Gage O1001 102. Diameter of counterbore, rnax . .Gage 01002 103. Diameter of hole.cGage 01003 104. Small outside diameter . ,.Gage 01004 105. Depth of counterbore Gage 01005 to small diameter en
44、d . Gage 01007 108. Split, cut or crack.Visual 01008 106. Length of small outside diameterGage O1006 107, Length from bottom of coulterbore Minor : AQL 1.00 percent 201. Finish improper. Visual oioog (see 3.4). visuai O1010 202 . Iividence of poor workmanship other than Major above . 4.3.2.2 Disc fl
45、ach separator (see dwg. 9234581 covering a detail of dwg. 9234579.) Method of Code No. Inspection Categories Defects Critical: None define6 Major: AQL 0.65 percent 101. Diameter, min *,.Gage 02001 102. Presence of holes.,.,Visual 02002 103. Diameter of holes, min.,. . Gage 02003 104. Burrs around ho
46、lesVisual 02004 -7 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-D-50778 13 77970b 0333328 5 I - MIL-D-5099 8 Winor : AQL 1.00 pcrrcerit 201. Thickness =GBl,e 02005 202 . Evidence of poor viorlmarsilip other than z Provided by IHSNot for Res
47、aleNo reproduction or networking permitted without license from IHS-,-,-The contractor shall provide adequate controls to insure that the explosives comply with the requirerents the contractor shall seLect a sample for test frors that quantity of each explosive used in each eight hoiirs of loauing p
48、rociuction. A composite sarnple shall not be used. If the rnoisture content of a sample exceeds the requireinents anti loading has not begun, that quantity of explosive represented by the sainple siial.1 be rejected Tf Components have been loadeci with explosive containing excessiv moisture, the rei
49、liaining unloacieu explosive aiiu tne loudeti components shall be rejected. specifiec in 4.4.1. Por verification, Tne test procedures shall be as .e 4.3.3.2 Functioning after anbient, cold tenperature arid Sampling.-Four huncirec anci sixty-five (465) water irturlersion conditioning. detonator assemblies shall be selected from each lot far test. The number of samples to be su
