DLA MIL-S-1733 C-1971 SUPPORT SNAP FASTENER《揿钮支持》.pdf
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1、MIL-s-1733c 6 December 1971 SUPERSEDING MIL-S- 17 3 3B 22 December 1964 MILITARY SPECIFICATION SWPORT, SNAP FASTENER This specification is mandatory for use by all Departments and Agencies of the Department of Defense. 1. SCOPE * 1.1 This specification covers snap fastener supports. * 1.2 Classifica
2、tion.- Snap fastener supports shall be of the following classes and finishes as specified (see 6.2). Class 1 - Brass Finish A - Bright brass Finish B - Black chemical Class 2 - Steel 2. APPLICABLE DOCUMENTS * 2.1 The following documents, of the issue in effect on date of invitation for bids or reque
3、st for proposal, form a part of this specification to the extent specified herein. SPEC1 FI CATIONS FEDERAL QQ-B-626 - Brass, Leaded and Non-Leaded ; Rod , Shapes, Forgings, and Flat Products with Finished Edges (Bar and Strip). QQ-S-698 - Steel, Sheet and Strip, Low-Carbon. QQ-2-325 - Zinc Coating,
4、 Electrodeposited Requirements For. , . Licensed by Information Handling ServicesMIL-s-1733c TT-L-58 PPP-B-566 PPP-B- 636 PPP-B-665 PPP-B-676 MILITARY MIL-E-480 MIL-S-L733C 53 777770b 007b553 7 - ._ - Lacquer, Spraying, Clear and Pigmented, (General - Boxes , Folding, Paperboard. - Boxes, Shipping,
5、Fiberboard. - - Boxes, Set-Up, Interior Use). Boxes; Paperboard, Metal Stayed (Including Stay Material). - Enamel, Baking, Phenol- Or Urea-Formaldehyde. STANDARDS MI LI TARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipment and Storage. Attributes. DRA
6、WING ARMY NATICK LABORATORIES 4-1-74 - Support, Fastener. (Miniature copy of Drawing 4-1-74, identified as figure 1, is attached for information purposes only). (Copies of specifications , standards , drawing, and publications required* by suppliers in connection with specific procurement functions
7、should be obtained from the procuring activity or as directed by the contracting officer.) * 2.2 Other publications.- The following documents form a part of this specification to the extent specified herein. Unless a specific issue is identified, the issue in effect on date of invitation for bids or
8、 request for proposal shall apply: . National Motor Freight Traffic Association, Inc., Agent National Motor Freight Classification (Application for copies should be addressed to the American Trucking Associations, Inc., Tariff-Order Section, 1616 P Street, N.W., Washington, D.C. 20036.) 2 Licensed b
9、y Information Handling ServicesNIL-S-1733C 53 9779706 0096554 O W MIL-S-1733C Uniform Classification Committee, Agent Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 202, Union Station, 516 W. Jackson Blvd., Chicago, Illinois 6
10、0606 .) (Technical society and technical association specifications and standards are also distri- are generally available for reference from libraries. buted among technical groups and using Federal agencies .) They 3. REQUIREMENTS * 3.1 First article.- When specified (see 6.2) , the suppl furnish
11、a sample for first article inspection and approval 6.3). 3.2 Materials.- The materials used shall confonn to the er shall see 4.2 and applicable referenced specifications, drawing and requirements specified herein. * 3.2.1 Brass, strip.- The strip brass shall conform to any copper alloy number, quar
12、ter or half hard temper of QQ-B-626. * 3.2.2 Steel, sheet and strip.- Sheet and strip steel shall conform to any quality, temper and finish of QQ-S-698. * 3.2.3 Lacquer.- Lacquer shall conform to type I, class 2 of TT-L-58. .* 3.2.4 Enamel.- Enamel shall conform to type I or II, black color NO. 2703
13、8 of MIL-E-480. * 3.3 Construction.- The construction of the snap fastener supports shall conform to Drawing 4-1-74 and as specified herein. fabricated from brass specified in 3.2.1. from steel specified in 3.2.2. Class 1 shall be Class 2 shall be fabricated * 3.4 Finish.- * 3.4.1 Class 1.- * 3.4.1.
14、1 Finish A.- Finish A, class 1 snap fastener supports shall be a natural bright brass coated with lacquer specified in 3.2.3. * 3.4.1.2 Finish B.- Finish By class 1 snap fastener supports shall be given a commercial dark oxide finish (see 6.4) . 3 Licensed by Information Handling ServicesflIL-S-1733
15、C 53 9999706 0096555 2 MIL-s-1733c * 3.4.2 Class 2.- Class 2 snap fastener supports shall be given a phosphate The enamel shall conform to 3.2.4. treated zinc plate conforming to type III, class 3 of QQ-2-325 followed by baked enameling. * 3.5 Marking for identification.- Prior to finishing, snap fa
16、stener supports shall be permanently indented in the location as shown on Drawing 4-1-74 with the manufacturers identification or trademark of such known characters as to be identified with the manufacturer. The indentations shall be not less than 1/8 inch in size and shall be legible after finishin
17、g. * 3.6 Workmanship.- The finished snap fastener supports shall be clean and free from oil, grease, dirt , sharp edges , burrs, malformation, and fracture. Lacquer and enamel coatings shall level out to a uniform dry film thickness without peeling, flaking, or blistering and shall be free from runs
18、, sags, drips, foreign inclusions, and areas of thin or no film. 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. Exc
19、ept as otherwise specified in the contract or order, 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 inspections set forth
20、in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. * 4.2 First article inspection.- When a first article is required, it shall be examined for defects in table I and specified dimensions. Any visual defect or any dimen
21、sion not within specified requirements shall constitute cause for rejection of the first article. * 4.3 Inspection.- Sampling for inspection shall be performed in accordance with MIL-STD-105 , except where otherwise indicated hereinafter. * 4.3.1 Component and material inspection.- In accordance wit
22、h 4.1, components and materials shall be inspected and tested in accordance with all the requirements of referenced specifications , drawings and standards unleas otherwise excluded, amended, modified or qualified in this specifi- cation or applicable purchase document. 4 Licensed by Information Han
23、dling ServicesMIL-s-1733c * 4.3.2 Process inspection.- Inspection shall be made during the manu- facturing process to determine that class 2 snap fastener supports are given a phosphate treated zinc plate prior to enameling, as specified in 3.4.2, snap fastener support affected and the process. When
24、ever nonconformance is noted, correction shall be made to the * 4.3.3 End item inspection.- The lot shall consist of all completely fabricated snap fastener supports of one class or finish, as applicable, submitted for inspection at one time. The sample unit shall be one snap fastener support. * 4.3
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