ARMY MIL-P-50536-1970 PROJECTILE 155MM HE M449A1 BASE PLUG FOR《M449A1型155 mm高爆榴弹用弹底塞》.pdf

1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-50536 (MU) MIL-1-45607 - STANDARDS MILITARY MIL-STD-105 - MIL-STD-109 - MIL-STD-1168 - MIL-STD-1169 - MIL-STD-1235 - DRAWINGS 2 Provided by IHSNot for ResaleNo reproduction or networking permitted

2、 without license from IHS-,-,-MIL-P-50536 13 I 9999906 0328071 2 MIL-P-50536 (MIT) (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

3、Officer). of this specification tc the extent specified herein. Unless otherw.ise indicated, the issue in effect on the date of invitation for bids or request for proposal shall apply. 2.2. Other publications.-The following documents form a part AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM E 8-68

4、 - Tension testing of Metallic Mater ia1 s (Application for copies should be addressed to: for Testing and Materials, 1916 Race Street, Philadelphis, Pa. 19103) American Society 3. REQUIREMENTS 3.1 Material.-Materials shall be in accordance with the 3.2 Base plugs.-Base plugs shall comply with all r

5、equirements applicable drawings and specifications. specified on Drawing (DwgJC-8875854, spec if ied in applicable spec if ications . and with all requirements 3.3 Heat treatment.-All heat treatment (including stress relief) procedures shall be controlled so as to produce in each lot of bBB plugs th

6、e mechanical properties specified on the applicable component drawing and in applicable specifications. 3.4 Metal defects.-All hse plugs shall be free from voids, cracks, seams, splits, laps, cold shuts, pipe, porosity, inclu- sions and other similar defects. 3.5 Workmanship.-All hse plugs shall be

7、fabricated a.ri.d finished in a thorough, workmanlike manner. They shall be free of burrs, chips, sharp edges, unblended radii, surface defects, dirt, grease, rust, corrosion products and other foreign matter. The cleaning method used shall not be injurious to any parts, nor shall the parts be conta

8、minated by the cleaning agents. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5053b 13 777770b 0328072 I.I 0 MIL-P-50536 (MU) and tests.-The contractor shall forward copies of th e results of any of his examinations or tests to the designat

9、ed address as required by the contract. for first article testing. Submission of first article quantity . by the contractor shall be as specified in the contract. 3.6 Submission of results of contractor-conducted examinations (see 6.4). 3.7 First article testing.-This specification makes provisions

10、4. QUALITY 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 ma

11、y 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 are deemed necessary to

12、assure supplies and services conform to prescribed requirements. Reference shall be made to MIL-STD-109 to define terms used herein. The provisions of MIL-A-2550 shall apply. Submission of product.-At the time the completed lot of items deliverable under the contract is submitted to the Government f

13、or 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: 4.1.1 a. assurance provisions specified in this specification. b. Drawing and specification number a

14、nd date, together with 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 referenced in any of the contractual documents, and that certificates of c

15、onformance are on file and available for review. A statement that the lot complies with all the quality d. Number of items in the lot. e. Date submitted. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5 Provided by IHSNot for ResaleNo reproduction

16、 or networking permitted without license from IHS-,-,-ML-P-Z 13. m 7779706 O328074 U 4.2.3 Rejection.-If any base plug fails to comply with any of the applicable requirementg,the first article quantity shall be rejected, its inspection upon any failure of any base plug in the sample to comply with a

17、ny of the stated requirements, In the event of rejection, the Government reserves the right to require the contractor to take corrective action and submit a new first article quantity or portion thereof, contractor is in no way authorized by the Government to resume regular production unless otherwi

18、se directed by the Contracting Officer. The Government reserves the right to terminate Until a first article quantity is accepted, the 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

19、of product from which a representative sample is drawn and inspected to determine conformance with applicable requirements. only that quantity of units from which the sample was ,drawn and shall not be construed to represent any prior or subsequent quantities presented sfor inspection. Homogeneity s

20、hall be con- sidered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process, in accordance with the same drawing, same drawing revision, same specification and same specification revision and complies with the provisions for submission of product as spec

21、ified in MIL-STD-105. to process, specification, or drawing not affecting safety, performance, interchangeability, or storage, as determined by the Government, shall not be deemed to alter the homogeneity of an inspection lot. accordance with this specification shall comply with the homo- geneity cr

22、iteria specified herein regardless of the type of. sampling procedure which is being applied to determine confor- mance with requirements. Lot numbering, as required, shall be in accordance with MIL-STD-1168. The sample selected shall represent Changes All material submitted for inspection in 4.3.2

23、Examination.-The examinations listed in the following subparagraphs shall be performed on inspection lots (See 4.3.1) of the components or assemblies designated in the applicable para- graph headings. when so specified) shall be 100 percent. Sampling plans for major and minor defects shall be in acc

24、ordance with MIL-STD-105 except that continuous sampling plans in accordance with MIL-STD-1235 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 de- fects usi

25、ng an AQL of 0.40 percsnt for each major defect and an Inspection for critical defects (and major defects, 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-50536 13 3977706 0328075 T I M 1.L - P - 5 O 5 3 6 (MU ) AQL of 0.65 percent for each m

26、inor defect. is 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 documented as part of the contractors inspection system. Equipment necessary for the performance of the i

27、nspections listed shall be in accordance with 4.3.4. When this method 4.3.2.1 Base plug (prior to painting) (See Dwg. C-8875854). Method of Categories Defects inspection Code No. (See 6.2) Critical: None defined Major AQL 1.00 Percent 101. Concentricity of outside diameter of flange with press fit d

28、iameter including perpendicularity of seat surface flange Gage O1001 102. Diameter of flange Gage 01002 103. Diameter of press fit area Gage 01003 104. Length of flange to seat surface Gage 01004 105. Finish improper on press fit area Visual 01005 106. Metal defective (See 3.4) Visual 01006 Minor AQ

29、L 1.50 Percent 201. Total length Gage 01007 202. Angle missing on flange Visual 01008 203. Chamfer missing from leading 204. Evidence of poor workmanship edge of press fit area Visual O1009 (See 3.5) Visual O1010 4.3.2.2 Base plug (See Dwg. C-8875854). Method of Categories Defects Inspection Code No

30、. Critical: None defined Major: None defined Minor AQL 1.00 Percent 201. Base metal exposed Visual 202. Evidence of poor workmanship (See 3.5) Visual 02001 02002 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-50 53 6 MU 1 4.3.3 Testing. 4.3.

31、3.1 Salt Spray test (See Dwg. C-8875854) Major defect (Code No. 03001).-The sampling plan for this test shall be as specified in TT-C-490. Testing shall be as specified in 4.4.1. If any base plug fails to comply with the specified requirements, it shall be classified defective. Corrective action sha

32、ll be taken as specified in TT-C-490. 4.3.3.2 Mechanical properties (See 3.3 and Dwcr. C-8875854) lugs shall be selected from each lot of 1200 or fraction thereof. One (1) specimen shall be prepared from each plug. If any specimen fails to comply with any of the mechanical properties specified on th

33、e applicable drawing, the lot shall be rejected. The test shall be performed as specified in 4.4.2 using equipment in accordance with 4i3.4. 4.3.4 Inspection equipment.-Equipment Tabulation (ET) number 8875854 and Equipment Lists (ELS) referenced thereon identify the inspection equipment required to

34、 perform the examinations and tests prescribed in this section. The contractor shall design inspection equipment in accordance with the instructions in 6.3. Supply and maintenance of the equipment listed on the ELS shall be in accordance with MIL-1-45607, 4.3.4.1 Government rights to documentation.-

35、Inspection equip- ment drawings and lists provided and revised in accordance with the requirements of this specification may be used by DOD activities for design, procurement, manufacture, testing, evalua- tion, production and receiving inspection, overhaul, shipping, storage, identification of stoc

36、k, ordering and storage of replace- ment parts, inspection of items at overhaul, general maintenance of equipment, construction, survey, and whenever inspection equipment drawings are needed. 4.4 Test methods and procedures. 4.4.1 Salt spray test.-This test shall be performed on the base plugs as sp

37、ecified in TT-C-490. The number of hours of exposure and the percentage of sodium chloride solution shall be as indicated in the applicable final painting specification. Examination shall be made for any.evidence of corrosion on the painted areas. 8 Provided by IHSNot for ResaleNo reproduction or ne

38、tworking permitted without license from IHS-,-,-MIL-P-5053b 13 W 77777Ob 0328077 3 MIL-PJjO536 (MU) 4.4.2 Mechanical properties of base plug.-Specimens shall be cut from base plugs in such a manner that th e longitudinal axis of the specimen will be parallel to direction of grain. Mechanical propert

39、ies (yield strength, tensile strength, and percentage of elongation) shall be determined in accordance with ASTM E 8L68. Yield strength may be determined by either the offset method or extension-under-load method. The lj-miting set shall be 0.1 percent (0.001 inch per inch of gage length). In additi

40、on, the yield point shall be determined by the divider method. Identity of each heat treated lot shall be maintained until all minimum mechanical properties have been verified by the Government inspector, 5. PREPARATION FOR DELIVERY 5.1 Preservation.and packaging (Level C).-See 5.2 for requirements,

41、 5-.2 Packing (Level C).-The base plugs shall be packed in accordance with MIL-STD-llbg. 5.3 Marking.-Marking of the carton shall comply with MIL-STD- 1169. 5.4 Shipping. -When campam& s from more than one lot are shipped as a carload, each lot shall be kept separate, and the division between lots c

42、learly indicated to prevent mixing of the lots in transit. 6. NOTES 6.1 Ordering data.-Procurement documents shall specify the following: a. Title, number and date of this specification. b. Data cards shall be prepared for each lot in c. Provisions for submission of first article samples. accordance

43、 with the information specified in Standard MIL-STD-1167. 6.2 Inspection code numbers.-The five-digit code numbers assigned to the inspections herein are to facilitate future data collection and analysis by the Government. These code numbers 9 Provided by IHSNot for ResaleNo reproduction or networki

44、ng permitted without license from IHS-,-,-10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5053b 13 9977906 0328079 7 MIL-P-50536 (MU) of the Government, design alternate inspection equipment to facilitate his operations. Such contractor-prep

45、ared designs (see 6.3.4) or commercial equipment selections must be approved by the Government prior to fabrication or procuring of the equipment. Designs shall be submitted for approval as specified in 6.3.5. Contractor designs.-Contractor designs are designs of inspection equipment for which the G

46、overnment has assigned design responsbility to the contractor. Contractor designs shall be supported by detailed drawings which depict all information necessary to completely fabricate, calibrate and operate an item of inspection equipment. This requires that the necessary views, dimensions, materia

47、ls, finishes, notes and operating and calibration instructions be properly depicted in accordance with approved practices to the extent that further ca.lculation or clarification will not be required. Unless otherwise specified, contractor designs may be developed on the format the contractor normal

48、ly employs in his equipment design procedure provided such format reflects the detail and information specified above, subject to the following controls: All submitted contractor designs shall conform to Specification MIL-D-1000, Category A, Form 3. Legibility and reproducibility shall permit conven

49、tional making of clearly understandable, high-contrast reproductions. Contractors shall submit three copies of final designs as a flat set. Designs shall be sub- mitted for approval as specified in 6.3.5. 6.3.4 6.3.5 Submission of contractor design.-All submitted designs shall contain a reference to the applicable 5-digit code number con- tained in Section 4 of this speci