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
25、.3.1 Visual examination.- Examination of the snap fastener supports shall be made for the defects listed in table I. The inspection level shall be level II with an acceptable quality level (AQL) of 2.5 for major defects and 6.5 for total defects, expressed in terms of defects per hundred units. * TA
26、BLE I .- Classification of defects - Classification Examine Defect Major Minor Finish Not finished X Color or finish not as specified X Not dry film e.g., wet or tacky flaking , or blistering X Run, sag, or drip X metal X plate, as applicable X X Not uniform, e.g., peeling, Area of no film exposing
27、bare Area of thin film exposing zinc Construction and Not clean or evidence of oil, wo rkmanship grease, dirt, sharp edge, burrs, malformation , foreign inclusion , or fracture X Marking for Missing, illegible, incomplete, identification misplaced, or less than 1/8 inch in size X 5 Licensed by Infor
28、mation Handling ServicesMIL-s-1733c * 4.3.3.2 Dimensional examination,- Examination shall be made of snap fastener supports for defects in dimensions, requirements shall be classified as a defect. be S-2 with an AQL of 4.0, expressed in terms of defects per hundred units. Any dimension not within sp
29、ecified The inspection level shall * 4.3.4 Examination of preparation for delivery.- An examination shall be made to determine that packaging, packing and markings are in compliance with section 5, Defects shall be as specified in table IL. for this examination shall be one shipping container fully
30、prepared for delivery. at one time. terms of defects per hundred units. The sample unit The lot shall be the number of containers submitted for inspection The inspection level shall be S-2 and the AQL 6.5, expressed in * TABLE 11.- Examination of preparation for delivery Defect _I Examine Marking (i
31、nterior Missing, incomplete, incorrect, illegible, of and exterior) improper size, location, sequence or method of application. Materials Any nonconforming component, component missing, damaged or otherwise defective. Workmanship Bulged or distorted container. More than one class or finish of snap f
32、astener supports in any container. Contents Quantity of snap fastener supports per package or shipping container, as applicable, is more or less than required, * 4.3.5 Examination of shipping containers.- When boxes or shipping containers are required to be in accordance with PPP-B-566, PPP-B-636, P
33、PP-B-665 or PPP-B-676, as applicable , examination for defects in closure , waterproofing , strapping or tape banding shall be in accordance with the appendix of the applicable specification. 6 Licensed by Information Handling ServicesMIL-S-L733C 53 m 9979706 0096558 5. PREPARATION FOR DELIVERY 5.1
34、Packaging.- Packaging shall be level A or C, as specified (see 6.2). * 5.1.1 Level A.- Unless otherwise specified (see 6.2), 2500 snap fastener supports of one class and finish only, shall be packed in a snug-fitting fiberboard box conforming to style RSC, type CF or SF, class domestic, variety opti
35、onal, grade 200 of PPP-B-636. When specified, snap fastener supports in the quantities specified, not to exceed 2500, shall be packaged in a folding, metal-stayed or Set-up paperboard box conforming to PPP-B-566, PPP-B-665 , or PPP-B-676, respectively. The weight and dimensional limitations of the r
36、espective boxes shall apply. folding or Set-up paperboard boxes shall be in accordance with the appendix of the respective specifications. Closure of the metal-stayed box shall be in accordance with the appendix of PPP-B-676. Closure of the fiberboard, * 5.1.2 Level C.- Snap fastener supports of one
37、 class and finish only shall be packaged to afford adequate protection against physical damage during shipment from the supply source to the first receiving activity. may use his standard practice when it meets this requirement. The supplier 5.2 Packing.- Packing shall be level A, B or C as specifie
38、d (see 6.2). * 5.2.1 Level A.- Unless otherwise specified (see 6.21, 15,000 snap fastener supports of one class and finish only, packaged as specified in 5.1, shall be packed in a snug-fitting fiberboard shipping container conforming to VS, style FTC of PPP-B-636, except that the weight limitations
39、shall be waived. When specified, snap fastener supports, packaged as specified in 5.1, shall be packed in quantities not to exceed 15,000 in a snug-fitting fiberboard shipping container conforming to class weather-resistant of PPP-B-636. weight and dimensional limitations of the container shall appl
40、y. Closure, waterproofing and reinforcing with flat strapping shall be in accordance with the appendix of the container specification. The * 5.2.2 Level B.- Unless otherwise specified (see 6.2), 15,000 snap fastener supports of one class and finish only, packaged as specified in 5,1, shall be packed
41、 in a snug-fitting fiberboard shipping container conforming to style FTC, type SF, class domestic of PPP-B-636, except that the weight limitations shall be waived. When specified, snap fastener supports, packaged as specified in 5.1, shall be packed in quantities not to exceed 15,000 in a snug-f itt
42、ing fiberboard shipping container conforming to PPP-B-636. Closure shall be in accordance with the appendix of the container specification. * 5.2.2.1 When specified (see 6.2), the shipping container shall be a grade VC, V3s or V4s fiberboard box fabricated in accordance with PPP-B-636 and closed in
43、accordance with the appendix thereto. 7 Licensed by Information Handling ServicesMIL-S- 17 33c * 5.2.3 Level C.- Snap fastener supports of one class and finish only, packaged as specified in 5.1, shall be packed in a manner to insure carrier acceptance and safe delivery at destination at the lowest
44、transportation rate for such supplies. Freight Classification Rules or National Motor Freight Classification Rules, as applicable Containers and packing shall comply with Uniform 5.3 Marking.- In addition to any special marking required by the contract . or order, interior packages and shipping cont
45、ainer shall be marked in accordance with MIL-STD-129. 6. NOTES * 6.1 Intended use.- The snap fastener supports covered by this specification are intended to support the male portion of the snap fastener located between the pockets of double pocket magazines covered by MIL-P-1691, MIL-P-2343, and MIL
46、-P- 17 86 3( MC) . * 6.2 Ordering data,- Procurement documents should specify the following: (a) (b) (c) (d) (e) (f) Title, number and date of this specification. Class and finish of snap fastener support required (see 1.2). When a first article is required (see 3.1, 4.2, and 6.3). Selection of appl
47、icable levels of packaging and packing When V-board containers are required for level B shipments Whether quantities per package or pack are other than specified (see 5.1 and 5.2). (see 5.2.2.1). (see 5.1.1, 5.2.1, and 5.2.2). * 6.3 First article.- When a first article is required, it shall be inspe
48、c.ted and approved under the appropriate provisions of ASPR 7-104.55. should be a preproduction sample consisting of one unit of each class and finish required. procurement instruments regarding arrangements for inspection and approval of the first article. The first article The contracting officer
49、should include specific instructions in all * 6.4 “Commercial dark“ is intended to mean a nominally dark color, approaching black, but with permissible latitude as to shade and tone (e.g., bronze-tone black, blue tone black, dark gray). 8 Licensed by Information Handling ServicesMIL-S-1733C 53 7779906 O096560 6 H MIL-S-1733C * 6.5 The margins of this specification are marked with an asterisk to indicate This was done as a convenience only and the Government assumes where changes (additions, modifications, corrections, deletions) from the previous issue were made, no liablity wha
