1、MIL-D-48116 (MU) 14 November 1972 MILITARY SPECIFICATION DELAY ELEMENT M2, FOR FUZES M557 AND M524 PARTS FOR AND LOADING, ASSEM3LING AND PACKING . 1. SCOPE 1.1 This specification covers the inspection of the parts and the loading, assembling and packing for one type of delay element designated as De
2、lay Element M2. 20 APPLICABLE DOCUNENTS 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-2550 - Amnunition and Special Weapons; General Specifica
3、tion for STANDARDS kIIL-STD-109 MIL-STD-650 MIL-STD-1169 MIL-STD-1235 fnSp?d;!-On - by AttrrL!JUtf?S (Ax-STD-105) Quality Assurance Terms and Definitions Explosives: Sampling, Inspection and Testhg Lot Numbering of Ammunition Single and Multilevel Continuous Sampling Procedures and Tables for Inspec
4、tion by Attributes Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-48116 (MU) DRAWINGS U. S. ARMY MUIJITIOIJS COMVIAND 9258182 - Box, Set-up, Packing, Ammunition, Inner, for Small Explosive Components 9258183 - Box, Set-up, Packing, Amunition,
5、9258184 - Box, Packing, Amunition, for Small Outer, for Small Explosive Components Explosive Components 9276524 - Delay Element, 142, Assembly PtlBLI CATIONS U. S. ARMY MUNITIOMS COMMAND ET-9276524 - Equipment Tabulation (Copies of specifications, standards, drawings and publications required by sup
6、pliers in connection with specific procurement functions should be obtained from the procuring activity or as directe by the contracting officer). 3 . REQUIRErUBNTS 3.1 Assembly.-The delay element shall comply with all requirements specified on Drawing (dwg.) 9276524, and with all requirements speci
7、fied in applicable specifications. 3.2 Moisture Content.-The moisture content of the following explosives at the loading station at the tirne of loading the delay elements shall not exceed the percentage specified in Table I. TABLE I Explosive Primer Mixture NOL #130 Percentage Test Procedure 0.30 m
8、aximum (nax.) 4.4.1.1 Lead Azide 0.50 max. 4.4.1.2 Delay Composition 0.80 max. 4.4.1.3 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-481Zb 13 777970b 0316397 5 = MIL-D-48116 (MU) 3.3 3.3.1 Time.-The delay element shall function high order o
9、n the first attempt unuer an applied energy of 15.68 Inch-ounces, within the time limits specified in Table II, when tested as specified in 4.4.3.1. The delay element shall comply with the following: TABLE II Upper Limit (sec.) Delay Time (Sec.) Lower Limit (sec.) 0,025 0.002 0.048 0.050 0.025 0.065
10、 3.3.2 Delay Elements that Fail to Fire on the First Attempt (Duds).-The delay element shall not dud when tested as specified in 4.4.3. the ambient requirements of 3.3.1 and shall not dud after being submerged in water to a minimum (min.) depth of two (2) inches for not less than 48 hours, at a tela
11、perature of 70 degrees (O) Fahrenheit (F) plus or minus (+) lF, when tested as specified in 4.4.3.2. 3.4 Waterproofness.-The delay element shall comply with - 3.5 Worknanship.-All parts and assemblies shall be fabricated and loadeu in a thorough, workrnanlke manner. of burrs, chips, sharp eages, cra
12、cks, surface defects, dirt, grease, 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. shall be neat anu snarply defined. provisions for first article inspection. Requirements for
13、the submission of first article saraples shall be as specified in the contract. They shall be free All required markings 3.6 First Article Inspection.-This specification makes Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-48116 (MU) 4. QUALIT
14、Y ASSURANCE PROVISIONS 4.1 Responsibility for Inspection.-Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the supplier may use his
15、 own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government,. The overnment reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure su
16、pplies and services conform to prescribed requirements. Reference shall be made to Standard MIL-STD-109 to define terms used herein. MIL-A-2550 shall apply. The provisions of Specification 4.1.1 Submission of Product.-At the time each completed lot of items deliverable under the contract is submitte
17、d 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 submitted : a. A statement that the lot complies with all of the quality assurance provisi
18、ons specified in this speclfication, b. Drawing and specification number and date, together with an identification and date of changes thereto. c. A statement that all material purchased by the contractor meets requirements, when such material is controlled by Government or commercial specifications
19、 referenced in any of the contractual documents, and that certificates of conformance are on file and available for review, except that a statement of findings for the moisture content of each explosive shall be submitted with each lot submitted for acceptance. d, Number of items in the lot. e. Date
20、 submitted. The certificate shall be signed by a responsible agent of the certifying organization. be substantiated by evidence of the agents authority to bind his principal, be required with subsequent certificates unless, during the course of the contract, this authority is vested in another agent
21、 of the certifying organization. The initial certificate submitted shall Substantiation of the agents authority will not Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D- 4 8 116 (MU ) 4.2 First Article Inspection 4.2.1 Submission.-The contracto
22、r shall submit a first article sample as designated by the contracting officer for evaluation as specified herein. The first article sample shall consist of inert parts (See 4.2.2) and iouded delay elernen%s (See 4.2.3) which have been produced by the contractor or furnished by a supplier, anu which
23、 have been r,ianufacturcu using the sanie production processes, procedures and equipwrit which will be used in fulfilling the contract. A11 parts and Inaterials shall be obtained from the same source of supply as will be used in regular production. Prior to submission, the contractor shall inspect t
24、he sarnple to the degree necessary to assure that it conforms to the requirements of the contract, ami he shall sumit a record of this inspection with the saiiiple, inclutlit:; certificates of conformance of inatei-ials . A sainple contnining known defects shall not be subinitteci unless specificall
25、y authorized by the contracting officer. A first article sariplc, or portion thereof, as uirecte by the contracting officer, shall also be submitted whenever a change occurs irr manufactwing process, material used, drawing or specification such as to significantly affect product unifornity as determ
26、ined by the Government. every part shall be submitted in accordance with the provislons of 4.2.1, for inspection as specified in 4.2.2.1. 4.2.2.1 subjected by the Governrnent to any or all of the applicable examinations specifieu in 4.3.2 of this specification and any or all requirements of the appl
27、icable drawings. Rejection.-If any part falls to comply with any of the requirements, the first article sample shall be rejected. The Govermient reserves the rit:ht to terniriate its inspection upon the failure of an item to coinply with any of the requirements. a sample of forty-two (42) elay eleme
28、nt assemblies to the Government for examination as specified in 4.3.2.5, and testing as specified in 4.2.3.i. 4.2.2 Inert Parts.-A sample of tweiity-five (25) each of Inspections to be Performed.-The parts will be 4.2.2.2 4.2.3 Loaded Delay Elements.-The contractor shall submit 5 Provided by IHSNot
29、for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-9LLb L3 m 7777906 03161100 L , )(iILD-43116 (MU) 4.2.3.1 Tests to be Performed.-Thirty-two (32) delay element assemblies shall be fired to determine time and duds, and ten (10)delay elements shall be water-immersion
30、 conditioned and fired for time and dud determinations. 4.2.3.2 Rejection.-The loaded first article sample shall be rejected If any delay element fails to comply with a requirement. In the event of rejection,the Government reserves the right to ttriilinats %ta itidptktibn upon any failure of a delay
31、 element to ebmpla, with any of the stated requirements. 4.3 nspeotion Provisions 4.3.1 Lot Formation.-The term tinspection lottt, as used in thi$ specification, is defined as an essentially homogeneous collection of units of product from which a representative sample is drawn and inspected to deter
32、mine conformance 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 provided the in
33、spection lot has been produced by one manufacturer, in one unchanged process, using the same materials and methods, in accordance with the same drawings, same drawing revisions, same specifications and same specification revisions, and complies with the provisions for submission of product as specif
34、ied in Standard MIL-STD-105. Changes to the process, specifications or drawings, not affecting safety, per- formance, interchangeability or storage, as determined by the Government, shall not be deemed to alter the homogeneity of an inspection lot. All material submitted for inspection in accordance
35、 with this specification shall comply with the homogeneity criteria specified herein, regardless of the type of sampling procedure which is being applied to determine conformance with requirements. Lot numbering, as required, shall be in accordance with MIL-STD-1168. Each inspection lot of loaded de
36、lay elements shall contain: a. Metal parts from not more than one lot interfix number from one supplier. b. Primer mix NOL #i30 or delay composition.-Each explosive from not more than one batch or blend of batches which results in homogeneity of each explosive used in loading a lot. C. Lead azide of
37、 the same type from not more than two (2) lots produce by the same manufacturer in accordance with the same specification and same specification revision, and which have sub- sequently been subjected to uniform controlled drying and oper- ating conditions at the loading plant. 6 Provided by IHSNot f
38、or ResaleNo reproduction or networking permitted without license from IHS-,-,-UIL-D-4811b 13 W 9999906 031b401 3 - 4.3.2 Exair:2t.T cl,.-:l:f- :s:i.i.+ :i#:o.!s lL.St.;lf In :.ir fcllc?:l:; subpaiwi*aphs siitrll bn pei*ioi.ied on impectior: lots (Sec 4 . 3.1) of the co1:ponents or asse!nbiies desi,q
39、mxd ir1 the applicable paragraph headings . Inspcction for Critlcal Defects (and i4aj or Defects, when so specifieu) shall tie 100 percent. Sarapling plans for Major and Minor Defects shall be in uccoi-dance with MIS-STD-105 except that continuoils sarapling plans in accordance with MIL-STD-1235 loa
40、y be used if approved by the Government. the AQLs designated herein to the E:rouns of Major an Minor Defects listed, the contractor may elect to apply AQLs to individual defects using an AQL of 0.4U percent for each Major Defect and an AQL of 0.65 percent for each Flinor Defect. When this method is
41、elected, it shall be applied to all of the Major and Minor Defects listed in the applicable subparagraph of this section, except where 100 percent inspection is specified, and be docu- mented as part of the contractors inspection system. Equipment necessary for the performance of the inspections lis
42、ted shall be in uccoruance with 4.3.4. Instead of applylrig 4.3.2.1 Body (See dug. 3276525, covering a detail of dwg. 9276524 1 . Categories Defects Method of Code No. InspectSon (See 6.2) Critical: None defineti. Ma j or : AQL 1.00 Percent 101. Insiae diarieter, rliax. .Gage O1001 102. Depth of cha
43、rge cavity, rnax. Gage 01002 . 103. Runout of hole to pitch diarneter. .Gage 01003 304. Runout of outside diarneter to pitch diameter.eae 01004 105. Pitch diameter, rnin. Gage 01005 106. Major diameter, rain. .Gage O1006 . Minor: AQL 2,50 Percent, SOL Length, min. Gae O1007 202. Outside diameter, mi
44、n. Gage 01008 203. Hole ianeter, rnax. . Gaae oioog 204. Width of slot, max. .Gage O1010 205. Evidence of poor workmanship (See 3.5).Visual 01011 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-D-4LLb 13 W 7797706 031b402 5 W I , h.3.2.2 Disc,
45、Closing (See dwg. 9276534, covering a de$ail OP dwg. 9276524). Oategctries Defects Method of Inspection Code No. - Stiffener not faaing one direction. .Visual 07002 I Maor: None defined. Minor : AQL 1.00 Percent 201. Marking missing, incomplete or 202. Evidence of poor workmanship illegible. . .Visu
46、al 07003 (See 3.5). . Visual 07004 4.3.2.8 Box, Packing, Ammunition, Prior to Assembling Cover and Strapping (See dwg. 958184) Method of Categories Defcts Inspection Code No. Critical: None defined. Ma j or : AQL 0.40 Percent 101. Bags containing Set-up boxes damage.Visua1 08001 102. Cushioning mate
47、rial incomplete or missing from around outer Set-up boxes . .visuai 08002 Minor : AQL 0.65 Percent 201. Evidence of poor workmanship (See 3.5). Visuai 08003 4.3.2.9 Box, Packing, Ammunition (See dwg. 9258184). Categories Defects Critical: None defined. Method of Inspect ion Code No, . _._ . _. . .-
48、- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-D-48LLb 13 = 77777Ob 03Lbrt05 O MIL-D-48116 (MU) Major: AQL 0.65 Percent 101. Strapping missing, broken, loose or Improperly fastened.Manual- Visual 09001 102. Box damaged Visual 09002 103. Marki
49、ng missing, broken.Visual 09003 201. Evidence of poor workmanship Minor : AQL 0.G5 Percent (See 3.5) Visual 09004 4-3.3 Testing.-Unless otherwise specified herein, the following tests shall be performed using MIL-STD-105 for sampling plan requirements. 4.3.3.1 Moisture Content (See 3.2, Table I) - Major Defects TABLE III E xp lo s ive Primer Mixture NOL i30 Lead Azid
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