ARMY MIL-O-71130-1992 OBTURATING BAND PLASTIC SPLIT (MOLDED)《分裂式塑料(模塑)密封圈》.pdf

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1、MIL-0-7LL30 13 W 9999906 0533705 L - (INCH-POUNDI MIL-0-71130 (AR) 26 May 1992 Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document, should be addressed to: Commander U.S. Army ARDEC, ATTN: SMCAR-BAC-S, Picatinny Arsenal, N

2、ew Jersey 07806-5000 by using the self-addressed Standardization Dcument Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. MILITARY SPECIFICATION OBTURATING BAND, PLASTIC SPLIT (MOLDED) This Specification is approved for use by the U.S, Army Armament, Munitions

3、and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope, This specification provides requirements and quality assurance provisions for obturating hand, plastic, split (molded) for use on the Cartridge, 81m, Short Range, Practice

4、, M880. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards and handbooks. The following specifications, standards and handbooks form a part of this dodcument to the extent specified herein. Unless otherwise specified, the issues of these documents shall- be those liste

5、d in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS MILITARY MIL-A-48078 - Ammunition Standard Quality Assurance Provisions, General Specification for STANDARDS MILTARY MIL-STD-109 - Qu

6、ality Assurance Term and Definitions MIL-STD-1169 - Packaging, Packing and Marking for Shipment of Inert Ammunition Components Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-0-71130 13 9999706 0533706 3 = a MIL-0-71130 (AR) (Unless otherwise in

7、dicated, copies of federal and military specifications, standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2, Other Government documents, drawings, and publications. The following other Government docu

8、ments, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS (See 6.5) U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) 12944201 - Ring,

9、Obturating (Copies of drawings, and publications and other Government documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Non-Government Publications. The following docume

10、nt(s) form a part-of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the

11、 issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY OF TESTING AND MATERIAL (ASTM) ASTM-D256 - Tests for Impact Resistance of Plastics ASTM-D6 3 8 - Test for Tensile Properties of Plastics ASTM-D648 - -Test for Deflection Temperature of ASTM-D790 - Tests for Flexural Prope

12、rties of Plastics and Electrical Insulating Materials . Plastics Under Flexural Load and Electrical Insulating Materials (Application for copies of ASTM publications should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103). 2 Provided by IHSNot

13、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-7LL30 13 W 9999906 0533707 5 - MIL-0-71130 (AR) 2.3 Order of precedence. In the event of a conflict between 8 the text of this document and the references cited herein, the text of this document shall take preceden

14、ce. Nothing in this document, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Material. Materials shall be in accordance with applicable drawings, specifications, and this specification. 3.1.1 Certification. Certification mu

15、st be furnished by the molder for each lot of bands certifying that the plastic used in molding complies with the requirements of 3.1. 3.2 Molded parts. Obturators shall comply with the applicable requirements specified on drawing 12944201 and shall be produced by the injection molding process. tran

16、slucent to inspect for voids. 3.3 Transparency. Molded parts shall be sufficiently 3.4 Physical property of molded parts. Material used to produce obturators shall meet the properties listed as follows: Characteristic Requirements Izod impact strength (min) 100 Joules/meter (J/M) Tensile yield stren

17、gth (min) 100 Megapascal (MPa) Flexural Modulus (min) _. 4500 Megapascal (MPa) Deflection temperature under a load at 1820 kilopascal (KPa) 145 degrees centigrade rounds which use the test obturators shall not differ more than 5 fps from that of the comparison samples with accepted Obturators when d

18、etermined by the statistical test (see 4.4.5.2.2). order (see 6.2), a sample shall be subjected to first article inspection in accordance with the technical provisions herein (see 4.3). 3.5 Proving qround test. The mean muzzle velocity of the test 3.6 First article. When specified in the contract or

19、 purchase 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-7Ll130 13 777770b 0533708 7 MIL-0-71130 (AR) 3.7 rkmanship. The parts shall be uniform in color, Lice o cracks, voids, burn marks, flashing, contamination, and sprues. 4. QUALITY ASSUR

20、ANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase or

21、der, the contractor 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 specification where such inspections ar

22、e deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items shall meet all requirements of section 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or qua

23、lity program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does

24、 not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.1.2 General provisions. The requirements of MIL-A-48078 form a part of the quality assurance provisions of this specification. Reference shall b

25、e made to MIL-STD-109 to define quality assurance terms used herein. 4.2 Classification of inspection. The following types of inspection shall be conducted on this item: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4) 4.3 First article inspection. 4 Provided by IHS

26、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-7LL30 13 I iiii90b 0533707 i j MIL-0-71130 (AR) 4.3.1 Submission. The contractor shall submit a first article sample as designated by the contracting officer for evaluation in accordance with the provisions of 4

27、.3.2. The first article sample shall consist of the items as requ-ired per Table I and shall equally represent all mold cavities. 4.3.2 Inspections to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 w Rejection. See MIL-A-48078 and 5 4.4.3.2. Provided by IHSNot for ResaleNo reprodu

28、ction or networking permitted without license from IHS-,-,-* -4 c, u a, P m F: *rl a, rl u -4 c, k (d c, m k -4 E4 o H w GI a 3 W W ce W ce O z n E I z a z v, l7.l W I- O z O i= W i MIL-0-71130 13 E 9999906 0533730 5 E O0 mmm In 0- rl m -u 04 K Fi .I CC 6 Provided by IHSNot for ResaleNo reproduction

29、 or networking permitted without license from IHS-,-,-. MIL-0-71130 13 9977906 0533711 7 _ MIL-0-71130 (AR) 4.4 Quality conformation inspection. 4.4. i inspection lot formation. inspection lots shall comply with the lot formation provisions of MIL-A-48078 and the following as applicable. 4.4.1.1 Obt

30、urator lot. A lot shall consist of obturators produced by one manufacturer in one unchanged process, in accordance with the same drawing, same drawing revisions, same specification and same specification revision, Each inspection lot shall contain: bands manufactured from one lot of resin and molded

31、 in one mold on one machine. 4.4.2 Examination and tests. a. Classification of characteristics. Quality conformance examinations ollowing Classification of Characteristics paragraphs. The contractors quality program or detailed inspection system shall provide assurance of compliance of all character

32、istics with the applicable drawing and specification requirements utilizing as a minimum the conformance criteria specified herein. When cited herein, attributes sampling inspection shall be conducted in accordance with TABLE II below, using the inspection levels cited in the Classification of Chara

33、cteristics paragraphs. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-0-71130 13 W 9999906 0533712 9 MIL-0-71130 (AR) TABLE II - Attributes samplinq inspection LOT SIZE 1NSPECT.ION LEVELS 151 to 280 281 to 500 501 to 1200 1201 to 3200 3201 to 10

34、000 10001 to 35000 35001 to 150000 150001 to 500000 * 125 32 * 125 32 * 125 80 1250 125 80 1250 125 125 1250 315 125 1250 315 125 1250 500 200 2 to 8 * * * * 5 9 to 15 * * * 13 5 16 to 25 * * * 13 5 26 to 50 * * 32 13 5 51 to 90 * * 32 13 13 91 to 150 * 125 32 13 13 32 20 32 20 50 20 50 32 50 32 80

35、50 80 50 25 50 5OOOO and over 1250 500 200 125 50 3 3 3 3 5 5 8 8 13 13 13 13 13 13 13 Numbers under inspection levels indicate sample size; asterisks b. Alternative quality conformance provisions. Unless otherwise specified herein or provided for in the contract,. alternative- quality conformance p

36、rocedures, methods or equiprnent , such as statistical process control, tool control, other types of sampling procedures etc. may be used by the contractor when they provide, as a minimum, the level of quality assurance requred by the provisions specified herein. alternative procedures, methods or e

37、quipment, the contractor shall describe them in a written proposal submitted to the Government for evaluation (See 6.6). When required, the contractor shall demonstrate that the effectiveness of each proposed alternative(s) is equal to or better than the specified quality conformance provisions here

38、in. contractors proposed alternative(s) provides equivalent assurance, the provisions of this specification shall apply. All approved alternative provisions shall be specifically incorporated into the contractors quality program plan or inspection system, as applicable. Prior to applying such In cas

39、es of dispute as to whether the 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c 4 f r C c r ( r r t t I LL O -4 MIL-0-71130 13 9999906 0533733 O - - 9 d Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS

40、-,-,-Z O R u w pi VI 2 w u H H 4 O !k z 8 2 * group 1 of 25 rounds conditioned for 24 hours at +70 degrees F + 2.5 degrees F, group 2 of 25 rounds with the standard obturator- 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 2.27, the test shall b

41、e rejected. Note 3: If SA2 S 2 and XA is within - +5 fps of XB , the d d test= shall be accepped. 5. PACKAGING 5.1 Packaging, packinq, and marking. Packaging, packing, and marking shall be in accordance with the requirements of Level C of MIL-STD-1169. 13 Provided by IHSNot for ResaleNo reproduction

42、 or networking permitted without license from IHS-,-,-. MIL-0-71130 (AR) 6. NOTES (This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.) specification are intended for assembly to M880 Practice Cartridges for use in the 81mm Mortar. 6.1 Inte

43、nded use. The components covered by this 6.2 Acquisition requirements. See MIL-A-48078 (AR). a. See MIL-A-48078 b. Issue of DODSS to be cited in the solicitation and if required, the specific issue of individual documents referenced (See 2.1). c. Provisions for submission of first article sample. 6.

44、3 Drawings. Drawings listed in section 2 of this specification under the heading U.S; Army Armament Research, Development and Engineering Center (ARDEC) may also include drawings prepared by and identified as U.S. Army Armament Research and Development command (ARRADCOM), Edgewood Arsenal, Frankford

45、 Arsenal, Rock Island Arsenal, or Picatinny Arsenal Drawings. Technical data originally prepared by the activities is now under cognizance of ARDEC. See paragraph 6.2.3 of MIL-A-48078. Submit designs as required to: Commander, U.S. Army Armament Research, Development and Engineering Center, ATTN: SM

46、CAR-QAT-I, Bldg 62S, Picatinny Arsenal, NJ 07806- 5000. This address will be specified on the Contract Data Requirements List, DD Form 1423 in the contract. 6.4 Submission of inspection equipment desiqns for approval. 6.5 Submission of test data. One copy of proving ground ballistic acceptance test

47、data (i.e., firing record) shall be forwarded to ech of the following: Commander, U.S. Army Armament Research, Development and Engineering Center, ATTN: SMCAR-QAT-B, Bldg 62S, Picatinny Arsenal, NJ 07806-5000. 6.6 Submission of alternative quality conformance provisions. Unless otherwise specified i

48、n the contract, proposed alternative quality conformance provisions will be submitted by the contractor for evaluation by the technical activity responsible for the preparation of this specification. 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,

49、-, MIL-0-71130 13 W 7999906 0533717 1 I MIL-0-71130 (AR) 6.7 Subject term (key word) listing. Deflection temperature Flexural modulus zod impact - Tensile strength Custodian Army-AR Preparing activity: Army-AR ( Proj ect 13 9 5-A 26 6 ) 15 Provided by IHSNot for ResaleNo reproduction or networking perm