1、MIL-C-51278D 84 W 7977906 040q273 7 H MIL-C-512 78D 30 June 1987 SUPERSEDING MIL-C-51278C 28 March 1983 MILITARY SPECIFICATION CAP, WATER CANTEEN, FIELD, 1 QUART AND 2 QUART CANTEENS This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Sco
2、pe. This document covers a plastic canteen water cap for the 1 quart and 2 quart field drinking water canteens. 2 APPLICABLE DOCUMENTS 2.1 Government documents. 8 2.1.1 Documents. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the iss
3、ues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving
4、 this document should be addressed to U.S. : Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5014, by using the self -addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8465 DISTRIBUTION
5、STATEMENT A. Approved for public release; distribution is unlimited. fl PAGES. - THIS DOCUMENT CONTAINS Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-51278D 4 W 7777qOb 0404272 9 MIL-C-512 78D SPECIFICATIONS FEDERAL PPP-B-63 6 MILITARY - Boxe
6、s, Shipping, Fiberboard MIL-L-3 5078 - Loads, Unit: Preparation of Semiperishable Subsistence Items; Clothing, Personal Equipment and Equipage; General Specification For STANDARDS FEDERAL FED -STD -5 9 5 - Colors MILITARY MIL-STD -1 O5 MIL-STD -129 MIL-STD-147 - Palletized Unit Loads - Sampling Proc
7、edures and Tables for Inspection - Marking for Shipment and Storage . by Attributes 2.1.2 Other Government documents. The following other Government documents 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 t
8、he solicitation. U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Federal Food, Drug, and Cosmetic Act and Regulations Promulgated Thereunder (21 CFR Part 177) (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20402.) DRAWINGS U.S.
9、 ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 8-1-33 - Canteen, Water, Plastic, with Screw Cap; Assembly and Details 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-5L278D 49 7799906 0409273 O 5-81-118 5-81-131 5-81-1 3 5 5-81-13
10、7 5-8 1- 13 8 5-81-139 . 136-5-520-1 136-5-540-1 MIL-C-51278D - Cap - Gasket - Valve - Connector, Female - Bracket - Cap - Tester, Air Leakage, Canteen Cap, 4178 Data List - Tester, Air Flow Resistance, 4179 (Copies of documents required by contractors in connection with specific acquisition functio
11、ns should be obtained from the contracting activity or as directed by the contracting activity.) n 2.2 Other publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those
12、 listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issues of the nongovernment documents which are current on the date of the solicitation. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 638
13、 D 790 D 792 D 1238 D 1505 D 1693 D 2176 D 2240 D 3951 - Tensile Properties of Plastics - Flexural Properties of Unreinforced and Reinforced - Specific Gravity and Density of Plastics by Displacement - Flow Rates of Thermoplastics by Extrusion Plastometer - Density of Plastics by the Density-Gradien
14、t Method - Environmental Stress Cracking of Ethylene Plastics - Folding Endurance of Paper by the M.I.T. Tester - Rubber Property - Durometer Hardness - Standard Practice for Commercial Packaging Plastics and Electrical Insulating Materials (Application for copies should be addressed to the American
15、 Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Technical society and technical association documents are generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) 2.3 Order of precedence. In the ev
16、ent of a conflict between the text of this document and the references cited herein, the text of this document shall take precedence. Nothing in this document, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 I Provided by IHSNot for ResaleNo
17、reproduction or networking permitted without license from IHS-,-,-MIL-C-5L27D 84 777770b 0404274 2 M MIL-C-512 78D 30 REQUIREMENTS 3.1 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3, 6.2, and 6.3). 3.2 Materials and c
18、omponents. The materials and components shall be as specified herein and on the applicable drawings. Materials and components not definitely specified shall be of the quality normally used by the manufacturer provided the completed item complies with all the provisions of this document. n 3.2.1 Plas
19、tic. The plastic material for the cap shall be virgin polypropylene copolymer conforming to the requirements specified in table I when tested as specified in 44.1.1. The use of reground material shall not be permitted. TABLE I. Polypropylene requirements Characteristic Dens i ty Melt index Tensile s
20、trength Elongation at yield Hardness Tangent modulus of elastic i ty (Flexur al modulus ) Environmental stress cracking res ist ance Color 0.902 grams (* 0.002 gram) per cubic centimeter 3.8 grams 0.4 decigrams per minute 4,000 pounds per square inch (psi) 8 percent minimum 79 f 3.0 shore D 150,000
21、psi, minimum 45 hours F50, minimum Natural 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-5 12 78D * 3.2.1.1 Toxicity. The polypropylene used in the manufacture of the cap plus other materials used in the fabrication of the plastic shall con
22、form to the requirements of 21 CFR Part 177 - Indirect Food Additives: Polymers (see 4.4.1.2). 3.3 Design and construction. The design and construction of the cap assembly shall be as specified herein and shown on 5-81-139 and subsidiary drawings. 3.4 Molded cap requireinents. 3.4.1 Molding method.
23、The molded sap (Drawing 5-81-118) shall be . injection molded from the plasticmaterial specified in 3.2.1. * 3.4.2 Color._ The color of the M1 cap shall approximate Olive Drab 34087, lusterless, of FED-STD-595. 3.4.3 Environmental stress -cracking resistance. The molded cap shall show no evidence of
24、 stress cracking when-tested as specified in 4.4.2.2. 3.4.4 Torque strength. The molded cap shall not slip,- disengage, or crack when tested as specified in 4.4.2.2. - 3.4.5 Hinge strength. The molded cap hinge shall not split into two different pieces after 25,000 flexes with a-load of 1.43 kilogra
25、ms f 0.03 kilogram when tested as specified in 4.4.2.2. 3.5 Assembled cap requirements. 3.5.1 Leakage resistance. The.,cap assembly shall not leak when tested as . ; specified in 4.4.5. 3.5.2 Air flow resistance. The cap assembly shall have an air flow resistance no greater than 1.0 inch of water wh
26、en tested as specified in 4.4.5. 3.6 Workmanship. The cap shall be free from fractures, splits, punctures, tears, dents, deteriorations, or malformations. The exterior surfaces of the cap shall have a smooth and lusterless finish throughout and shall be free of dirt, dust, grease and foreign matter.
27、 The finish shall be produced from a die which has cavity surfaces finished in vapor blast, water hone or similar satin finish and not by the application of any protective coating, lacquers or other materials. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
28、m IHS-,-,-MIL-C -5 12 78D 4. QUALITY ASSURANCE 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 as specified herein. Except as otherwise specified in the contra
29、ct or purchase order, 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 this document where such i
30、nspections are deemed necessary to assure supplies and services conform to prescribed requirements. .Y + 4.1.1 Responsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspection set forth in this document shall become a P part of the contractors overall inspectio
31、n system or quality program. The absence of any inspection requirement in the document shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conform
32、ance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. w 4.1.2 Responsibility for dimensional requirements. Unless otherwise specified in the contract or purchase order, the contractor is resp
33、onsible for assuring that all specified dimensions have been met. When dimensions cannot be examined on the end item, inspection shall be made at any point or at all points in the manufacturing process necessary to assure compliance with all dimensional requirements. 4.1.3 Certificates of compliance
34、. When certificates of compliance are submitted, the Government reserves the right to inspect such items to determine the validity of the certification. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3). b
35、. Quality conformance inspection (see 4.4). 4.3 First article inspection. When a first article is required (see 6.2), it shall be examined for the defects specified in table IV and tested as specified in 4.4.4 and 4.5.1 through 4.5.5. failure to pass any test shall be cause for rejection of the.firs
36、t article. The presence of any defect or 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-5127D 4 9399706 0404277 MIL -C-512 78D 4.4 Quality conformance inspection. Unless otherwise specified, sampling for inspection shall be performed in acco
37、rdance with MIL-STD-105. 4.4.1 Component and material inspection. In accordance with 4.1, components and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified, or qualified in this document or applicable purchase doc
38、ument. si 4.4.1.1 Material certification. The polypropylene material for the cap shall be accepted on the basis of a contractors certificate of compliance with the characteristics listed in table II. TABLE II. Plastic raw material tests Characteristic Requirement Test Method Density Melt index Tensi
39、le strength Elongation at yield Hardness Tangent modulus of elasticity Environmental stress cracking resistance Color Table I -. Table I Table I Table I Table I Table I Table I Table I ASTM D 1505, Method B or D 792 Method A or B ASTM D 1238, Procedure A, condition E ASTM D 638, type IV specimens AS
40、TM D 638, type IV specimens ASTM D 2240 ASTM D 790, Procedure B ASTM D 1693 test as for type I Visual 4.4.1.2 Toxicity certification. A certificate of compliance will be acceptable as evidence of conformance to the toxicity requirements specified in 3.2.1.1. 7 Provided by IHSNot for ResaleNo reprodu
41、ction or networking permitted without license from IHS-,-,-MIL-C-5127 8D 4.4.1.3 Cap components (other than cap shell) certification. A certificate of compliance will be acceptable as evidence that the gasket, valves, female connector, bracket, or spring conforms to the material and dimensional requ
42、irements specified on Drawing 5-81-131, 5-81-135, 5-81-137, or 5-81-138, whichever is applicable. 4.4.2 In-process inspection. 4.4.2.1 Mold approval. Prior to use in regular production, each mold shall be used to produce an initial production lot of cap shells and one cap shell shall be randomly sel
43、ected from that lot. The cap shell shall be examined for conformance to all dimensions specified on the applicable drawing. If the cap is found to conform to all dimensional requirements, the related mold shall be approved. If the cap shell fails to conform to any dimensional requirement, an additio
44、nal five cap shells shall be randomly selected from the initial production lot and examined for all dimensions. If any additional cap shell fails to conform to any dimension, the related mold and initial production lot shall be rejected. When any mold is repaired or altered in any way, mold reapprov
45、al in accordance with the above procedure is required. 4.4.2.2 In-process testing of cap shells. Prior to beginning regular production, four cap shells shall be selected at random from the initial production lot and tested as specified in table III. be cause for rejection of the lot. Necessary chang
46、es to the materials and procedure shall be made and testing as above shall be repeated. Whenever any change in material or manufacturing process is made, the initial lot produced after the change shall be tested as above. Any test failure shall TABLE III. Molded cap shells in-process tests Character
47、istic Number of Requirement Test method samples Environmental stress cracking resistance 3.4.3 4.5.3 10 Torque strength 3.4.4 4.5.4 25 Hinge strength 3.4.5 4.5.5 25 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-5227D 4 = 7799706 0404277 L M
48、IL-C-51278D 4.4.3 End item visual examination. The end item shall be examined for the defects listed in table IV. The Sample unit shall be one cap. The inspection level shall be II and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 2.5 for major defects
49、 and 6.5 for total (major and minor combined) defects. The lot size shall be expressed in units of caps. TABLE IV. End item visual defects Examine Defect Classification Finish Color not as specified Dirt, grease, oil, foreign matter, undisposed pigment, dark particles of burnt material, porosity Design, construction Any component or part missing or not and workmanship specified type or size general (applicable F
