1、p. 5?-37-/9 MIL-M- 213 83A 22 October 1976 Superseding MIL-M-21383(NOrd) 28 April 1958 MILITARY SPECIFICATION MANGANESE DELAY COMPOSITION This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification governs the preparation of ma
2、nganese delay composition and the methods of inspection and tests upon which product acceptance will be based. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposals form a part of this speci- fication to the extent specifie
3、d herein. between this specification and other documents referenced herein, requirements of this specification shall apply. In the event of conflict SPECIFICATIONS Federal PPP-B- 6 21 PPP-C-96 Military Boxes, Wood, Nailed and Lock Corner Can, Metal, 28 Gage and Lighter JAN-M-4 7 6 JAN-L- 4 8 8 Lead
4、Chromate (For Use In Ammunition) MIL-B-5 50 Barium Chromate MIL-C-10464 Cans, Hermetic Sealing, Metal Light Gage Tear-Strip Type MIL-P-2226 4 Powders, Ignition, Gasless MIL-V-23776 Vermiculite, Expanded MIL-B-82647 Bag, Conductive, Heat-Sealable, Plastic Manganese, Powdered (For Use in Ammunition) 1
5、 i Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Ordnance Station, Standardi- zation Division (611), Indian Head, MD 20640, by using the self-addressed Standardizatio
6、n Document Improvement Proposal (DD Form 1426) appearing _- 1 at the end of this document or by letter. TAIS DOCWffEkBT CONTPAS 9 FSC 1377 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-VIL-M-2L383A 13 m 777770b 0303277 3 i1 MIL-M-21383A STANDARDS
7、 Military MIL-STD-129 Marking for Shipment and Storage MIL-STD-1234 DRAWINGS Pryotechnics: Sampling, Inspection, and Testing Naval Sea Systems Command (Code Ident. 10001) Dwg 423038 Replacement Sample Powder Tank Mk 1 and Mods LD 480089 Test Element and Output Charge Holder Dwg 1826685 Delay Body Dw
8、g 1826687 Test Element No. 3, Loading Procedures Dwg 1826740 Output Charge Holder, Loading Procedures PUBLICATIONS Naval Sea Systems Command (Code Ident. 10001) OD 9360 Preparation of Manganese Delay Composition Naval Air Systems Command AD 1014 Operating Procedures for Pyrotechnic Delay Timing Appa
9、ratus (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 Formulation of manganese delay compositions. T
10、he manganese delay composition shall be formulated from treated manganese powder, and barium chromate and/or lead chromate. proportioning, and compounding ingredients to obtain designated burning time values are provided in OD 9360. Advisory methods for preparing, 2 Provided by IHSNot for ResaleNo r
11、eproduction or networking permitted without license from IHS-,-,-MIGw213 83A 3.1.1 Manqanese hawn in hg 1826685 shall be loaded according to directions on Dwg 1826687. tools required for loa- am on drawings under i;D 480089. ignition incrmt, Pl, of approximately 105 milligram of ?ilA conposition in
12、accordance with MIIiP-22264 shall be adjusted to be within the drawing limits for increment length when pressed at 30,000 -F 500 psi. ocinposition increments shall be charged separately at 30,000 rt 500 psi to be within the drawing limits for tota1 length of delay column. increment my be measured vo
13、lumetrically by means of a size as to give six approximately equal incremnts. increnient , D6, is pressed, the loading funnel cap shall be loosened and tightened again. capaction and to minimize the danger of loss of puder by fallait. surface of the delay column shall be flush with the end of the de
14、lay element in which it is contained. the end of the test e1-t over a hard cloth. The output charge holder containing the P2 charge shall be loaded in accordance with Dwg 1826740. Tk “k The delay Each of such After the last The D6 incr-t shall then be repressed to improve 12ae Excess paxder my be re
15、moved by sliding 4.3.4.2 Thhg of test elements. Directions for maUnting mtponents The tenperature of the test elenientc for rm temperature firing Test adapters shall be conditioned into the delay body holder and assahling the test adapter axe given in AD 1014. shall be 24“ k 4C. If detailed directio
16、ns for testing at law and high temperatures are not specified for the qualification of the wer, the following procedure shall be follawed: continuously for at least 2 hours before firing at the required temperature. 4.3.4.3 Procedure for operating test apparatus. it is suggested that AD 1014 be used
17、 for operating instructions of test apparatus. 4,3.4.4 Conputation of burning tim and percentage of coefficient of variation. Compute the burning time which is the average (X) of the time observations obtained in 4.3.4.2. ccarHute the stanard deviation, (s) , of the tim observations. shall be govern
18、ed by 6.3. by dividing (100) ths (s) by K. Dicposition of the lot shall be governed by 3.2 and 3.5, The synbls and the mthd of amputation Compute the percentage of coefficient of variaam Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIM-2138 3A 4.3
19、.4.5 Testing after shipmt or prolonged storage. As specified in 3.2.1, lots shall be tested as specified in 4.3.1. Thse lots failins to nieet humer, venting or expansion chamber pressure relief is desirable ta relieve pressure generated by ignition elenuents. Application of this pawder is restricted
20、 to hemtically sealed ascemblies. 6.2 rdering data. Procurement documents should specify the follawing: 6.2.1 Procurement reqUirments (a) (b) Wuning tinie (3.2) Title, nmr, and date of this specification (c) inner and outer container (5.1, 5.2) (d) Marking (5.3) (e) That the safety precaution rquire
21、nients of the Cmtractorsl Safety Manual for &munition, Explosives and Related Dangerous Material, DOD 4145.26Mf are applicable. NOTE: When this specification is used as part of tk description of work to be amanplished by a Govenrment activity, the safety precaution requirements of Amrnintion Ashore,
22、 OP 5, should be niade applicable. 6.2.2 Contract data requhmnts. Itens of deliverable data re- quired by this specification are cited in the following paragraphs herein: Paragraph Data Requirement Applicable DID 5.4 Data cards * Provided by IHSNot for ResaleNo reproduction or networking permitted w
23、ithout license from IHS-,-,-MIL-M-21383A 13 7777906 0303304 7 MIL-M-21383A DDS (Data Item Descriptions/DD Forms 1664) for the above data requirements are/will be (*) documenteed in the applicable ADL (Autbrized Data List). Such data will be delivered as identified on ccmipleted (n-ed) DIS when speci
24、fied on DD Fom 1423 (Contract Data BquireSrients List) and inaxprated into applicable contracts. 6.3 Canputation of mean and standard deviation of a camp le. 6.3.1 Mean: the sum of individual measurenrients divided by the numker of mZZEements 6.3.2 Standard deviation: where N = the nmhr of measureme
25、nts cx2 = sum of the squared measurements (CX)2 = sum of the measurements squared 6.4 Micramerograph Type XC and Anstac solution are available frcm Val-Dell Co., NorristoWn, PA. 6.5 The Occupational Safety and Health Mmi.nistration recamends that mrker exposure to hexavalent chrcpnium be controlled
26、or eliminated. Barium chrmate is an inferred carcinogen and lead chramate is an evident Carcinogen. 6.6 Due to the cmprehensive nature of this revision the margins of this specification have not been marked with an asterisk to indicate where changes (additions, niodifications, corrections, deletions
27、) fm the previous issue vere made. evaluate the requirements of this document based on the entire content irrespective of relationship to the last previous issue. Bidders and contractors are cautioned to Custodians: Navy - OS Army-m &view Activity: Army - PA Preparing Activity: Project No. 1377-0610 Navy-os dJ.STGOVERNMENT PRINTING OFFICE: 1976-703-020/1601 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
