1、MIL-W-5664D 12 January 1987 “ SUPERSEDING MIL-W-5664C 17 AUGUST 1971 MILITARY SPECIFICATION WEBBING, TEXTILE, ELASTIC This specification is approved for use by all Departments and Agencies of the Department of De-fense. 1. SCOPE 1.1 Scope. This specification covers requirements for elastic webbings
2、used in aviator and ground combat clothing and equipment- 1.2 Classification. The webbing shall be furnished in the following types as specified (see 6.2). The classes and widths shall be as specified (see 6.2) and as indicated in Table I. Type I - Cotton fiber Type II - Nylon fiber 2. APPLICABLE DO
3、CUMENTS 2.1 Government documents 2.1.1 Specifications and sandards. The following specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense I
4、ndex of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS MILITARY MIL-W-43334 - Webbing and Tape, Textile, Packaging of Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this docu
5、ment should be addressed to: Systems Engineering and Standardization Department (Code 93), Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end OP this document or by letter. AMSC NIA FSC
6、 8305 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. 1 THIS DOCUMENT CONTAINS PAGES. Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-5bbVD 83 m 7797706 0375257 2 MIL-W-
7、5664D STANDARDS FEDERAL FED-SJD-191 - Text! le Test Methods . FED-STD-601 - Rubber, Sampl i ng and Test i ng MI LI TARY MIL-STD-105 - Samplimg Procedures and Tables for Inspection by Attributes 2.1.2 Other .Government documents. The fol lowing other Government document forms a part of this specifica
8、tion to the extent specified herein. Unless otherwise specified, the issue shall be that in effect on the date of the sol ici tation. Rules and Regulations Under Textile Fiber Products Identification Act (Copies of specifications, standards, and other Government documents required by contractors in
9、connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Other publications. The following document forms a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the
10、 documents which are DOO adopted shall be those 1 isted 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 issue of the nongovernment document which is current on the date of the solicitation. AMERICAN S
11、OCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 3951 - Standard Practice for Commercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Nongovernment standards and other pub1 i cations are normal ly a
12、val lable from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein
13、 (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First
14、 article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.4 and 6.3). 2 t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-SbhLID 83 m 7777706 0375260 7 m . MIL-W-5664D 3.2 Materia
15、l. 3.2.1 Cotton yarn. The yarn used in the manufacture of the cotton elastic webbing shall be of a grade and staple length which will meet the requirements of this specification. 3.2.2 Nylon yarn. The yarn used in the manufacture of the nylon elastic webbing shall be a bright, high tenacity, light a
16、nd heat resistant polyamide prepared from hexamethylene diamine and adipic acid and its derivatives. The yarn shall not be bleached. The yarn shall have a nominal size of 2012 cotton count. Testing shall be as specified in 4.7. 3.3 Webbing properties. The class, type, width, thickness, weight, and e
17、longation requirements of the webbing shall be as shown in Table- I. TABLE I TYPE I Class 1 2 3 Width (inches) 318 -c 1/32 1/2 -c 1/16 3/4 -c 1/16 7/8 -c 1/16 1 -c 1/16 2 +. 1/16 1-112 -C 1/16 2-1/2 * 1/16 1-1/2 +. 1/16 1-1/2 * 1/16 Thickness range (i nches) O1 6-. 046 . O1 6-. 046 . O1 6-. 046 . O1
18、 6-. 046 . O1 6-. 046 . O1 6-. 046 .031-.O61 .031-.O61 .094-. 1 56 ,094-. 156 TYPE Ounces per 1 i near yard (max, weight) 0.28 O. 38 O. 53 O. 55 0.73 1 .o0 1.60 2 .o0 2.30 2.35 I To produce 50% elongation, load range at room temperature (pounds) 1.15-3.25 1.35-3.75 1 .80-5 .O0 O 90-4.37 3.00-5.50 5.
19、00-7.00 6.00-1 1 .O0 8.00-12.00 7.20-17.50 15.30-31 .25 1 4.00-7 50 1.20 ,030-.60 1-1/2 2 1/16 3.00-6.00 O. 80 ,030-. 060 1 -c 1/16 3.3.1 Weave construction. Unless otherwise specified by the procuring activity, the weave for all classes except Class 1, 1-inch width and 1-1/2 inch width, for both ty
20、pes, shall be with one filling yarn per shed. Class 1, 1-inch width and 1-1/2 inch width, for both types, may be supplied in a shuttle or shuttleless loom construction. (see 6.2.1) 3.4 Drift. The drift of the load on the webbing, elongated and maintained at 50 percent elongation for 4 hours, shall b
21、e not more than 20 percent when the drift test is performed as specified in 4.7.2. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-5bbLID 83 777770b 03752bL O MIL-W-5664D 3.5 Tension x. After the webbing has been elongated and maintained at 5
22、0 percent:elongation for 10 minutes and then allowed to relax for 10 minutes, the webbing tension set (change in length of the sample) shall be not more than 5 percent. 3.5.1 After heat aging. After the webbing has been heat aged at 70“ -c 1C (158“ -c 2F) for 7 days, and after at least 3 hours from
23、the time of removal from the aging oven, it shall meet the tension set requirement of 3.5. 3.6 Low temperature elongation resistance. For Class 1 and 2 webbings the load at 50 percent elongation at 21“ -c 2.8“C (70“ -c 5F) shall be not less than 20 percent of the ioad at 50 percent elongation at -40
24、“ f 2.8“C (-40“ -c 5F): For Class 3 webbing the value shall be not less than 40 percent 3.7 Color. The color of Type I shall be as specified (see 6.2). Type II shall be O1 ive Green 106. 3.7.1 Color matching. The dyed webbing shall match the standard sample when viewed under filtered tungsten lamps
25、which approximate artifical daylight having a correlated color temperature of 7000 2 500 K, with illumination of 100 2 20 foot candles, and shall be a good match to the standard sample under incandescent lamplight at 2300 100 K. 3.8 Colorfastness. Unless otherwise specified, colored webbing shall sh
26、ow good fastness to 20 standard fading hours of light, water, laundering, perspiration, and crocking. Black webbing shall show fair fastness to wet crocking. (see 4.7). 3.9 pH. The pH value of the water extract of the dyed webbing shall be no 3.10 Length and put-kp. Unless otherwise specified, when
27、the webbing furnished is one inch or less in width, it shall be furnished on fiberboard spools containing 120 to 130 yards with not more than 6 pieces per roll. No piece shall be less than 2 yards in length. When the webbing furnished is over one inch in width, it shall be furnished on fiberboard sp
28、ools containing 45 to 55 yards with not more than 3 pieces per rol 1. No piece shall be less than 10 yards in length. All ends shall be joined together either by pinning or sewing. less than 5.0 nor more than 8.5 when tested as specified in 4.7. 3.11 Identification label. Each spool of webbing shall
29、 have an identification label attached to the head end of the spool in accordance with MIL-W-43334. 3.12 Fiber identification. Each spool of webbing shall be labeled, ticketed, or invoiced for fi ber content in accordance with the Texti le Fi ber Products Identification Act. 3.13 Workmanship. The fi
30、nished webbing shall conform to the quality and grade of product established by this specification. The occurrence of defects shall not exceed the appl i cable acceptable qual i ty level S. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-5664
31、D 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 contract or purchase order, th
32、e 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 the specification where such inspections are deeme
33、d necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items must meet all requirements of section 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality pro
34、gram. The absence of any inspection requirements in the specification 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 conformance does not aut
35、horize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4) b. Qualit
36、y conformance inspection (see 4.5) 4 s ha1 4 shal 1 eng .3 Inspection conditions. Unless otherwise specified, all inspections 1 be performed in accordance with the test conditions specified in 4.4. .4 First article inspection. The first article sample specified in 3.1 1 be inspected for all the requ
37、irements of this specification except for th (4.6.1.3) and preparation for delivery (4.6.2). 4.5 Quality conformance inspections. The quality conformance inspection shall consist of the examinations described in 4.6.1 through 4.6.3 and the testing of the end item in 4.7. 4.6 Inspection. Sampling for
38、 inspection shall be performed in accordance with MIL-STD-105, except where otherwise indicated hereinafter. 4.6.1 End item examination. Defects found during the examination shall be classified in accordance with 4.6.1 .l, 4.6.1.2 and 4.6.1.3. 4.6.1.1 Yard-by-yard examination. The required yardage o
39、f each piece shall be inspected on both sides and v-isual defects classified as listed in Table II. All defects found shall be counted regardless of their proximity to each other, except where two or more defects represent a single local condition of the webbing, in which case only the more serious
40、defect shall be counted. A continuous defect shall be counted as one defect for each warpwise yard or fraction thereof in which it occurs. The sample unit for this Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-5bb4D 83 7797706 0375263 4 MI L-
41、W-5664D exami nation shall be one 1 i near yard. The sample size shall be in accordance with level II of MIL-STD-105. The acceptable quality level (AQL) shall be 2.5 major defects and 6.5 minor defects per 100 units (yards). The lot size shall be expressed in units of one linear yard each. An approx
42、imately equal number of yards shall be examined from each spool selected. The number of spools from which the sample is to be selected shall be in accordance with Table III of this specification. EXAMINE Abrasion mark Broken or missing enc Broken or missing pick Coarse filling bars 3ease or wrinkle
43、:ut, hole, tear louble end Irop-pl y Iropped stitch on mi tted edge 3dge cut or frayed Idge beaded or corded TABLE II CLASSIFICATION OF DEFECTS DEFECTS Resulting in rupture of individual yarns or plies, distortion in the orientation of threads, dimensional distortion, areas visibly thinner than adjo
44、ining unaffected areas Any 2 or more within a linear inch, regardless of the size of missing port i on Single, missing for more than 1/4 inch Yarn larger in diameter than in ad- joining unaffected area resulting in increased stiffness or thickness J-/ Twisted or distorted. Will not lay flat upon app
45、lication of manual pressure Any cut, hole, or tear Resulting from wrong draw (see “Wronc draw“) Clearly visible, or more than 2 ends within same length and extending over 9 1 inear in. or more J-/ 4ny (shuttleless loom construction) Zlearly visible 1/ Visible increase in thickness or mis- formed sel
46、vage - 1 / 6 MAJOR X X X X X X X MI NOR Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c EXAM1 NE ldge folded or rolled Sdge loopy Edge loose idge tight idge scal loped -ine or light filling ar -loat Identification label Heavy filling bar, heavy pla
47、ce Hi tch-back, crack, open place Jerked-i n fi 1 1 i ng , slough off Kinks MIL-W-5664D TABLE II (continued) CLASSIFICATION OF DEFECTS DEFECTS (See “Crease“1 - Forming clearly visible filling loops 3r edges tied loosely to body for 2 1 i near inches or more L/ Resulting in waviness, distortion in wi
48、entation of fi 11 ing, or looseness Resulting in visible tension along edge, or pucker, waviness, bagginess Dr slackness that cannot be flattened by manual pressure 1/ 9ny visible indentation of edge Clearly visible L/ Multiple, 1/2 inch or more in com- bined warp and filling directions, or single f
49、loating over more than 1 inch Multiple, less than 1/2 inch in com- bined warp and filling directions, or single, float-over more than 1/2 inch but not more than 1 inch if in warp, over more than 114 of the width but not more than 1 inch if in filling Missing, incomplete, incorrect illegible or insecurely attached Visibly stiffer or thicker than ad- joining unaffected area - 1/ Clearly visible opening between ad- joining picks, or warpwi se tension area
