1、MIL-C-LIObO 13 7777706 0315826 5-3 7- 0s” MIL-C-48060 (PA) 27 November 1973 SUPERSEDING MILITARY SPECIFICATION CARTRIDGE, 105MM, HE: M444E1, FUSIBLE PLUG ASSEMBLY FOR - This Specification is approved for use by all Departments Agencies of the Department of Defense. 1. SCOPE nl 1.1 This specification
2、 covers the parts for one type of plug designated as Plug Assembly, Fusible. 2. APPLICABLE DOCUMENTS 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 MI
3、L-A-2550 - Ammunition, General Specification for STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes (ABC-STD-105) MIL-STD-109 - Quality Assurance Terms and Definitions THIS DOCUMENT CONTAINSLPAGES A Provided by IHSNot for ResaleNo reproduction or networking
4、permitted without license from IHS-,-,- _j MIL-C-OhO 13 7773706 O315827 T MIL-C-48060 (PA) MIL-STD-1168 - Lot Numbering of Ammunition MIL-STD-1169 - Packaging, Packing and Marking for Shipment of Inert Ammunition Components MIL-STD-1235 - Single and Multilevel Continu- ous Sampling Procedures and Ta
5、bles for Inspection by Attributes DRAWINGS U.S. Army Armament Command D-9247311 - Fusible Plug Assembly (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 directe
6、d by the Contracting Officer). 3 . REQUIREMENTS 3.1 Material.-Materials shall be in accordance with the applicable drawings and specifications. 3.2 Fusible Plug.-The Fusible Plug shall comply with all requirements specified on Drawing (Dwg) D-9247311, all associated drawings, and with all requiremen
7、ts specified in applicable specifications. 3.3 Air Pressure Test.-There shall be no evidence of leakage when the fusible plug is subjected to an air pressure of 40 psig,minimum,for 15 seconds,minimum. The test shall be performed as specified in 4.4.2. 3.4 Workmanship.-All parts and assemblies shall
8、be fabri- cated and finished in a thorough, workmanlike manner. They shall be free of burrs, chips, sharp edges, cracks, unblended radii, surface defects, dirt, grease, rust, corrosion products, and other foreign matter. Tke cleaning method used shall not be injurious to any parts, nor shall the par
9、ts be contaminated by the cleaning agents. All marking and stamping shall be neat and sharply defined. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-48ObO 13 m 999970b 0315828 1 W . MIL-C-48060 (PA) 3.5 Submission of results of contractor-
10、.conducted examin- ations ant coDies of the 1 tests.-The contractor shall forward results of any of his examinations or tests to th; designated u address as required by the contract. (see 6.4). 3.6 First article testing.-This specification makes provisions for first article testing. Submission of fi
11、rst article quantity by the contractor Shall be as specified. in the contract. 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
12、herein. the supplier 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 inspection set forth in the specification where such inspections ar
13、e deemed necessary to 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 submitt
14、ed to the Government for acceptance, the contractor shall supply the follow- ing information accompanied by a certificate which attests that the information provided is correct and applicable to the product being submitted: Except as otherwise specified in the contract or order, 4.1.1 a. A statement
15、 that the lot complies with all the quality b. Drawing and specification number and date, together C. A statement that all material purchased by the contractor assurance provisions specified in this specification. with identification and date of changes thereto. meets requirements when such material
16、 is purchased by the contractor or commercial specifications referenced in any of the contractual documents, and that certificates of conformance are on file and available for review. d. Number of items in the lot. e. Date submitted. The certificates shall be s2gned by a responsible agent of the cer
17、tifying organization. The initial certificate submitted shall be substantiated by evidence of the agents authority to bind Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48060 (PA) his principal. Substantiation of the agents authority will not
18、 be required with subsequent certificates unless, during the course of the contract, this authority is vested in another agent of the certifying organization. 4.2 First article inspection, 4.2.1 Submission.-The contractor shall submit a first article quantity as designated by the Contracting Officer
19、 for evaluation in accordance with the provisions of 4.2.2. (See 6.1.) The first article sample shall consit of the following: a. Fifty (50) fusible plug assembly:D-9247311 b. Twenty-five (25) plug:D-9248618 c. One (1) pound of fusible alloy All parts and completed assemblies submitted shall have be
20、en produced by the Contractor (or furnished by a supplier) using the same production processes, procedures and equipment as will be used in fulfilling the contract. All parts and materials, including packaging and packing, shall be obtained from the same sources of supply as will be used in regular
21、production. The sample shall be accompanied by certificates of conformance. A first article quantity, or portion thereof, as directed by the Contracting Officer, shall also be submitted whenever there is a lapse in production for a period in excess of 90 days, or whenever a change occurs in manufact
22、uring process, material used, drawing specification or source of supply as to significantly affect product uniformity as determined by the Government. Prior to submission, the contractor shall inspect the sample to the degree necessary to assure that it conforms to the requirements of the contract a
23、nd submit a record of this inspection with the sample. A sample containing kncjwn defects will not be submitted unless specifically authorized by the Contracting Officer. 4.2.2 Inspection to be performed.-All parts and assemblies shall be subjected by the Government to any or all the examinations or
24、 tests specified in this specification and any or all require- ments of the applicable drawings. In addition, the following tests shall be performed: 4.2.2.1 Air pressure test.-The fifty (50) fusible plug assemblies shall be subjected to the air pressure test specified in 4.4.2. 4 Provided by IHSNot
25、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-C-480bO 13 = 977770b 0335830 T MIL-C-48060 (PA) 4.2.2.2 Push test of ternary eutectic alloy.-After completion of the air pressure test, twenty-five (25) of the fusible plug assemblies shall be subjected to the push
26、- out test specified in 4.4.3. 4.2.2.3 Melting test of ternary eutectic alloy.-One- quarter (1/4) pound of the fusible alloy shall be sub.Sected to the melting- test specified in 4.4.1.- 4.2.3 Rejection.-If any part or assembly fails to comply with any of the applicable requirements, the first artic
27、le quantity shall be rejected. The Government reserves the right to terminate its inspection upon any failure of any part or assembly, in the sample to comply with any of the stated requirements. In the event of rejection, the Government reserves the right to require the contractor to take correctiv
28、e action and submit a new first article quantity or portion thereof. Until a first article quantity is accepted, the contractor is in no way authorized by the Government to resume regular production unless otherwise directed by the Contracting Officer. Y 4.3 Inspection provisions.- 4.3.1 Lot formati
29、on.-The term “inspection lot“ as used in this specification is defined as an essentially homogeneous collection of units of product from which a representative sample is drawn and inspected to determine conformance with applicable requirements. The sample selected shall represent only that quantity
30、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 con- sidered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process in accordance with the
31、same drawing, same drawing revision, same specification and same specification revision, and complies with the provisions for submission of product as specified in MIL-STD-105. Change to process, specification, or drawing not affecting safety, performance, interchangeability, or storage, as determin
32、ed by the Government, shall not be deemed to alter the homogeneity of an inspection lot. All material submitted for inspection in accord- ance with this specification shall comply with the homogeneity criteria specified herein regardless of the type of sampling procedure which is being applied to de
33、termine conformance with requirements. Lot numbering, as required, shall be in accordance with MIL-STD-1168. Each inspection lot shall contain: 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48060 (PA) a. Ternary Eutectic Alloy from one lot
34、number. b. Plugs of one lot interfix from one manufacturer. 4.3.2 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 paragraph headings. Inspection for critical defects (an
35、d major defects, when so spen,ified) shall be 100 percent. Sampling plan for major and minor defects shall be in accordance with MIL-STD-105 except that continuous sampling plans in accordance with MIL-STD-1235 may be used if approved by the Government. Individual defects shall have an AQL of 0.40 p
36、ercent for each major defect and an AQL of 0.65 percent for each minor defect. Equipment necessary for the performance of the inspections listed shall be in accordance with 4.3.4. 4.3.2.1 Categories Critical : Major: 101. 102. 103. 104 . 105. 106. 107. 108. io9 . 110 . Minor : 201 . 202. 203 204 . 2
37、05. Plug (see Dwg. D-9248618). Defects None defined Length of plug Diameter of hole Dis tance be tween slots Location of slots Width of slots Distance from bottom of flange to slot Distance across parallel sides of hexagon Pitch diameter of thread Major diameter of thread Outside diameter Method of
38、Code Inspect ion No. (See 6.2) Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Distance from end of threads Gage to bottom of flange Distance from end of plug to bottom of flange Gage Surface finish improper on any surface Visual Taper missing (when applicable) Visual Evidence of poor workmanship
39、(See 3.4) Visual O1001 01002 01003 01004 0100 O1006 01007 01008 01009 O1010 01011 01012 01013 01014 01015 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-qObO 13 777770b 0335832 3 . MIL-C-48060 (PA) 4.3.2.2 Fusible plug assembly, prior to pou
40、ring alloy (See DWg. D-9247311). Categories Defects Critical: None defined Method of Co de Inspection No. Maj or 101. Primer or sealing compound not present on noted surface Visual 02001 Minor: None defined 4.3.2.3 Fusible plug assembly, after pouring alloy, (See Dwg. D-9247311). Categories Defects
41、Critical: None defined Major Method of Co de Inspect io_.: No. 101. Alloy excessively below or excessively above noted surface Gage 03001 Minor : 201. Evidence of poor workmanship (See 3.4) Visual 4.3.2.4 Container, sealed (See Section 5). Categories Defects Method of Inspection Critical: None defin
42、ed Ma J or O3002 Code No. 101. Container damaged Visual 04001 102. Contents of container loose Visual/Manual 04002 103. Container incorrect according to size and weight Visual 04003 104. Closing of container incorrect 04004 or incomplete Visual 105. Marking data missing, illegible, or incomplete Vis
43、ual 04005 Minor 201. Size of marking letters incor;rec t Visual 04006 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-q8ObO 13 7977706 0315833 5 = MIL-C-48060 (PA) 4.3.3 Testing. 4.3.3.1 Melting test of ternary eutectic alloy, (See dwg. D-924
44、7311) MajFDeTect, Code No. 05BOl.-Five (5) samples of approximately one-quarter (1/4) pound each shall be randomly taken from each lot of ternary eutectic alloy to be used in each lot of fusible plug assemblies. If any sample fails to comply with the melting point specified on the applicable drawing
45、,the alloy lot shall be rejected. In addition, all fusible plug assemblies containing the rejected lot of ternary eutectic alloy shall be rejected. The test shall be conducted as specified in 4.4.1 using equipment in accordance with 4.3.4. 4.3.3.2 Air pressure test of fusible plug assembly (See Dwg.
46、 D-9247311 and paragraph 3.3) Major Defect, Code No. 06001.- Every plug shall be subjected to this test. If any part fails to comply with the applicable requirement, it shall be classed defective and removed from the lot. The test shall be performed as specified in 4.4.2 using equipment in accordanc
47、e with 4.3.4. 4.3.3.3 Push-out test of ternary eutectic alloy (See Dwg. D-9247311) Major- Defect, Code No. 07001.-Ten plugs shall be selected from each lot after the air pressure test has been performed. specified on the applicable drawing, the lot represented by these parts shall be rejected. The t
48、est shall be performed as specified in 4.4.3 using equipment in accordance with 4.3.4. 4.3.4 Inspection equipment.-The inspection equipment required to perform the examinations and tests prescribed in this section is identified under the “Method of Inspection“ headings in 4.3.2 and in 4.3.3 (See 6.3
49、). If any plug fails to compiy with the requirement 4.4 Test methods and procedures. S i 4.4.1 Melting test of ternary eutectic alloy.-The samples elected in 3.3.3.1 shall be individually tested by placing each n a beaker of distilled water at ambient temperature. The temperature of the water shall then be raised at a rate not to exceed 10F per minute. The water shall be stirred to assure uniform heating. A temperature-ind
