NAVY MIL-P-82887-1993 PROPELLANT M6+2 FOR THE 76MM 62 CALIBER CARTRIDGE《76MM 62 口径弹药筒M6+2推进剂》.pdf

1、INCH-POUNDSMIL-P-82887(OS)10 November 1993SUPERSEDINGWS 16620E 15 August 1983 MILITARY SPECIFICATION PROPELLANT, M6+2 FOR THE 76MM/62 CALIBER CARTRIDGEThis specification is approved for use within the Naval Sea Systems Command, Department of theNavy, and is available for use by all Departments and A

2、gencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers the requirements for M6+2 Propellant for use in the 76MM/62Caliber Propelling Charge (see 6.1).1.2 Classification. The propellant shall be cylindrical multiperforated grains.2. APPLICABLE DOCUMENTS2.1 Government docume

3、nts.2.1.1 Specifications and standards. The following specifications and standards form a part of thisdocument to the extent specified here in. Unless otherwise specified, the issues of these documents arethose listed in the issue of the department of Defense Index of Specifications and Standards (D

4、ODISS) andsupplement there to, cited in the solicitation (see 6.2).SPECIFICATIONSMilitaryMIL-D-98 Diphenylamine, TechnicalMIL-P-193 Potassium Sulfate (For Ordnance Use)MIL-D-204 Dinitrotoluene (For Use in Explosives)MIL-D-218 Dibutylphthalate, TechnicalMIL-N-244 NitrocelluloseMIL-P-270 Propellant, A

5、rtilleryBeneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving thisdocument should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Branch(Code 8420), 101 Strauss Avenue, Indian Head, MD 20640

6、-5035, by using the Standardization Document ImprovementProposal (DD Form 1426) appearing at the end of this document or by sending a letter.AMSC N/A FSC 1376 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking p

7、ermitted without license from IHS-,-,-MIL-P-82887(OS)2STANDARDSMilitaryMIL-STD-129 Marking for Shipment and StorageMIL-STD-286 Propellants, Solid; Sampling, Examination and TestingMIL-STD-652 Propellants, Solid, For Cannon, Requirements and PackingMIL-STD-1168 Ammunition Lot NumberingMIL-STD-1171 Ac

8、ceptance and Description Sheet for Propellants and ExplosivesDOD-STD-2101 Classification of Characteristics(Unless otherwise indicated, copies of Federal and Military Specifications and Standards, are availablefrom Standardization Documents Order Desk, Bldg. 40, 700 Robbins Avenue, Philadelphia, PA

9、19111-5094.)2.1.2 Other Government documents, drawings, and publications. The following other governmentdocuments, drawings, and publications form a part of this document to the extent specified herein.Unless otherwise specified, the issues shall be those cited in the solicitation.DRAWINGSNaval Sea

10、Systems Command (CAGE Code 10001)138439 Packing Box Mark 7 (For Smokeless Powder), General Arrangement3208655 Charge, Propelling, 76MM/62 (Steel)5367224 Test Vehicle, 76MM (Primer, Case, Propellant)US Army Material Command76-4-53 Box, Steel M2 For Smokeless Powder Assembly(Application for copies of

11、NAVSEA drawings should be addressed to: Commander, Naval SurfaceWarfare Center, Crane Division, Louisville Detachment, Attn: Code 802, Louisville, KY 40214.)PUBLICATIONSNaval Sea Systems Command (CAGE Code 10001)WR-53/724-1 Palletizing Domestic Unit Load For MK 7 Packing Box(Application for copies o

12、f WRs should be addressed To: Commanding Officer, Naval Publications andForms Center, Attn: NPODS, 5801 Tabor Avenue, Philadelphia, PA 19120-5099.)CODE OF FEDERAL REGULATIONS (CFR)Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82887(OS)349 CFR

13、 100-199 Transportation(The Code of Federal Regulations is available from the Superintendent of Documents, U. S. GovernmentPrinting Office, Washington, DC 20402.)2.2 Order of Precedence. In the event of a conflict between the text of this document and thereferences cited herein, the text of this doc

14、ument takes precedence. Nothing in this document, however,supersedes applicable laws and regulations unless a specific exemption has been obtained.3. REQUIREMENTS3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see6.3) in accordance with 4.4.3.2 C

15、omposition (M101). The propellant shall meet the requirements of table I when analyzed (see4.7.1).TABLE I. M6+2 composition.Material Specification Percent by WeightNitrocellulose, Grade C, Type IDinitrotolueneDibutylphthalatePotassium Sulfate, Type IDiphenylamine1/Moisture1/Total Volatiles, maximum1

16、/MIL-N-244MIL-D-204MIL-D-218MIL-P-193MIL-D-9887.00 2.0010.00 2.003.00 1.002.00 0.301.00, + 0.20, ! 0.100.60 0.202/1/ Added percentage basis.2/ As specified for M6 propellant in figure 1 of MIL-STD-652.3.3 Grain form and dimensions (M102). The grain form and dimensions shall meet the requirementslist

17、ed in MlL-P-270 for Type I propellants (see 4.7.2, 4.7.4, and 6.6).3.4 Integrity. The propellant grains shall be without cracks or incipient cracks between the perforationsor between the perforations and the outside edge of the grain (see 4.7.4).3.5 Stability (C1). Using the 134.5E centigrade (C) he

18、at test the methyl violet test paper shall not fadeto a salmon-pink color in less than 40 minutes and the propellant shall not explode in less than 5 hours(see 4.7.3).3.6 Charge weight (M103). The assessed charge weight shall be greater than 5.00 pounds (seeProvided by IHSNot for ResaleNo reproducti

19、on or networking permitted without license from IHS-,-,-MIL-P-82887(OS)44.7.6.3). 3.7 Packing depth (M104). The propellant lot shall have a production packing depth such that, whenloaded as part of the 76MM, 62-caliber propelling charge assembly (Drawing 3028655), the minimum andmaximum production p

20、acking depths allowed for the assessed charge weight shall be 4.5 inches and 7.5inches, respectively (see 4.7.6).3.8 Gun ballistic assessment requirements.3.8.1 Velocity (M105). The charge weight of the propellant lot under test shall be assessed to resultin a nominal average new gun velocity of 300

21、0 feet per second (ft/sec) with a projectile weight of 14.15 0.05 pounds (see 4.7.6.2).3.8.2 Pressure (M106). The maximum allowed chamber pressure shall be 19.0 long tons per squareinch (tsi) (copper crusher gauge pressure) (see 4.7.6.2).3.8.3 Velocity variation (M107). The maximum allowed velocity

22、standard deviation shall be 15 ft/sec(see 4.7.6.2).3.8.4 Pressure variation (M108). The maximum allowed pressure standard deviation shall be 0.60tsi (see 4.7.6.2).3.9 Propellant interface test. All first article lots must be subjected to the propellant interface test andproduction lots when directed

23、 by the procuring activity (see 4.7.9 and 6.5).3.10 Workmanship. The propellant shall be manufactured using good workmanship and shall be aproduct free from foreign material. It shall be uniform in quality and manufactured in a manner to assurecompliance with the requirements of this specification w

24、hen examined in accordance with 4.7.4.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, thecontractor is responsible for the performance of all inspection requirements as specified herein. Exceptas otherwise specified in t

25、he contract or purchase order, the contractor may use his own or any otherfacilities suitable for the performance of the inspection requirements specified herein, unless disapprovedby the Government. The Government reserves the right to perform any of the inspections set forth in thespecification wh

26、ere such inspections are deemed necessary to assure supplies and services conform toprescribed requirements.4.2 Classification of inspections. The inspection requirements specified herein are classified asfollows:a. First article inspection (see 4.4)b. Quality conformance inspection (see 4.5)Provide

27、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82887(OS)54.3 Inspection conditions. All test activities identified in the contract shall submit to the technicalactivity and the design agent for review, prior to first article, a description of the pro

28、posed procedures andequipment to be used to perform the examination and test.4.4 First article inspection. First article inspection shall be performed by the contractor, afteraward of contract and prior to production, at a location acceptable to the Government. First articleinspection shall be perfo

29、rmed on sample units which have been produced with equipment and proceduresnormally used in production. First article approval is valid only on the contract under which it is granted,unless extended by the Government to other contracts. The first article sample is intended to providenecessary inform

30、ation to establish the propellant granulation needed to meet the required ballisticparameters.4.4.1 Submission. The contractor shall select three propellant granulations which, from experience,are expected to bracket the requirements of this specification. The contractor shall submit a first article

31、sample as designated by the contracting officer for evaluation in accordance with 4.4.2, consisting of threepilot lots of a maximum of 1000 pounds each, representing the three candidate granulations.4.4.2 Inspections to be performed. Each of the granulations comprising the first article sample andsu

32、bmitted in accordance with 4.4.1 shall be tested by the Government. First article inspection shallconsist of the tests specified in table Il.4.4.3 Authorization. Government engineering and product assurance personnel and the contractor shallreview the pilot lot test data and shall select a granulati

33、on size which best fits the requirements ofthis specification. The technical agency shall notify the contracting officer of the selected granulation.The contractor shall request approval from the contracting officer to produce the selected granulation.If none of the pilot lots submitted meets the re

34、quirements of this specification, a new first article sampleshall be submitted in accordance with 4.4.1. All future production lots shall be of the same basicgranulation.TABLE II. First article and quality conformance tests.Characteristic Requirement Test MethodCompositionGrain Form and DimensionsSt

35、abilityChargePacking DepthVelocity and PressureWorkmanship3.23.33.53.63.73.83.104.7.14.7.24.7.34.7.6.34.7.54.7.6.24.7.44.4.4 Failure. Failure of the sample to meet the requirements of this specification shall be cause forrejection of the first article sample.Provided by IHSNot for ResaleNo reproduct

36、ion or networking permitted without license from IHS-,-,-MIL-P-82887(OS)64.5 Quality conformance inspection. Quality conformance inspection shall consist of the examinationsand tests of 4.7 to determine conformance to the requirements of this specification. Failure of any sampleto conform to any req

37、uirement specified herein shall be cause for rejection of the lot represented.Alternate methods and test procedures may be used provided prior written approval has been obtained fromthe procuring activity and the gun ammunition propelling charge design agent, Indian HeadDivision, Naval Surface Warfa

38、re Center, Indian Head, Maryland. Requirements and their correspondingtests are summarized in table Il.4.5.1 Lot size. Unless otherwise specified in the contract or purchase order, the propellant shall beproduced in lots of 450,000 pounds, maximum.4.5.2 Sampling. The samples shall be selected from f

39、ull Mark 7 boxes (Drawing 138439) so as to berepresentative of the lot. All samples shall be selected following the final packing of the lot. All samplesshall be packed in moisture-proof airtight containers and marked with the following in accordance withMlL-STD-129:a. Propellant descriptionb. Prope

40、llant lot numberc. Number of pounds in lotd. Manufacturere. Contract number4.5.2.1 For gun performance tests. Sample size shall be approximately 1000 pounds randomlyselected from full Mark 7 boxes.4.5.2.2 For physical characteristic tests. A 10-pound sample shall be randomly selected from fullMark 7

41、 boxes.4.5.2.3 For surveillance tests. A 5-pound sample shall be randomly selected from full Mark 7 boxesand forwarded to the Navys designated surveillance activity for propellants: Indian Head Division, NavalSurface Warfare Center, Indian Head, MD 20640-5035.4.6 Classification of characteristics. T

42、he characteristics verified by the tests and examinations hereinare classified as critical, major, or minor in accordance with DOD-STD-2101. Requirements for criticalcharacteristics are identified by the symbol (C) and major characteristics by the symbol (M). The numberfollowing the classification s

43、ymbol indicates the serial number of the characteristic. Requirements notannotated with a classification code are classified minor.4.7 Methods of inspection.! CAUTION !This specification covers sampling and testing of chemical, toxic, orexplosive materials which are potentially hazardous to personne

44、l. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-82887(OS)74.7.1 Chemical analysis. The chemical composition shall be determined using the methods specifiedin table Ill. The requirements of 3.2 shall be met or the lot shall be rejected.TABLE

45、III. Chemical analysis test methods.Material Test Method of MIL-STD-286NitrocelluloseDinitrotolueneDibutylphthalatePotassium SulfateDiphenylamineMoistureTotal Volatiles209.2.1205.1.2, 205.3.1, or 226.2204.1.2 or 226.2310.3.1, 310.4.2, or 316.1201.1.4, 201.2.3, or 226.2102.1.3 or 103.5101.1.2, 101.2.

46、2, or 103.54.7.2 Grain dimensions. Grain dimensions shall be determined in accordance with MlL-STD-286,method 504.1.1 or 504.6.1. The requirements of 3.3 shall be met or the lot shall be rejected.4.7.3 Stability. Stability shall be determined in accordance with MlL-STD-286, method 404.1.2(134.5EC he

47、at test). The requirements of 3.5 shall be met or the lot shall be rejected.4.7.4 Visual examination. The propellant grains selected for the physical characteristic tests shall bevisually examined prior to conducting the physical characteristic tests (4.7.1, 4.7.2, and 4.7.3) to verifythat:a. Grain

48、form conforms to the requirements of 3.3.b. Workmanship conforms to the requirements of 3.10.4.7.5 Packing depth. The maximum packing depth (MPD) is the distance, measured to the nearesttenth of an inch, from the case mouth to the upper level of any given propellant charge in a loadedcartridge case.

49、 MPD is determined by pouring the propellant charge steadily from a height of 30 inchesabove the mouth of a primed case, over an interval of one minute while the outside of the case is brisklytapped with a soft mallet adjacent to the rising level of the propellant during pouring. The MPD must bedetermined for each lot of propellant by pouring three charges preconditioned for a minimum of four daysat 90 3E Fahrenheit (F) at each of three charge levels