1、1 - MIL-W-83344A 83 7977706 0408430 4 MIL-W - 8 3 144A(USAE) 18 May 1970 SUPERSEDING MIL-W -83 144 (USAF) 5 June 1968 MILITARY SPECIFICATION .! WEBBING, TEXTILE, WOVEN NYLON, ROLLED SELVAGE I! 1. SCOPE 1.1 Scope. This specification covers untreated, undyed, nylon webbing. 1.2 Classification. as spec
2、ified (see 3.2). The nylon webbing shall be of the following types, 2. APPLICABLE DOCUMENTS 2.1 for bids or request for proposal, form a part of this specificatiori to the extent specified herein. The following documents of the issue in effect on date of invitation SPECIFICATIONS Mi lit ary MIL-w-43
3、334 Webbing and Tape, Textile, Packaging and Packing of STANDARDS Federal / Fed. Test Method Std. 191. Textile Test Methods Military MIL-STD- 105 Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications, standards, drawings and publications required by suppliers in conne
4、ction with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer .) FSC 8305 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2 Other publications. specif icalion to the extent specif
5、ied herein, the issue in effect on date of invitation for bid or request for proposal shall apply. The following document forms a part of this Unless otherwise indicated , Rules and Regulations Under the Textile Fiber Products Identification Act (Copies may be obtained without charge from the Federa
6、l Trade Commission, Washington, D.C. 20580.) 3. REQUIREMENTS 3.1 Material 3.1.1 Nylon yarn, webbing shall be a bright, high tenacity, light and heat resistant, polyamide prepared from hexamethylene diamine and adipic acid, or its derivatives. shall have a minimum melting point of 472F. shall be pres
7、hrunk prior to weaving, manner or in any subsequent process. The nylon yarn used in the manufacture of all types of It The yarn for the selvages The yarn shall not be bleached in any 3.2 Physical properties. The construction and physical properties of the finished webbing shall be as specified in ta
8、ble I. certify that the webbing or yarn, separately, has not been subjected to any type of bleaching, The supplier shall Table I. Construction and physical properties Character istic Type I Type II Type III Type IV Type V Width (including Selvage width, inches L/ selvages) ;inches 2+0- 1 / 16 23.0-
9、1 /16 2+0-1/ 16 2+0-1/ 16 2+0-1/ 16 Maximum 118 118 5 /32 7/32 1/8 Ends (Minimum) 3 02 152 208 280 448 Ends in each selvage 40 20 28 32 56 Picks/inch (Minimum) 36 36 36 24 36 Weight , ounces/yd. (Maximum) O .43 0.82 1.20 1.40 0.56 2 Provided by IHSNot for ResaleNo reproduction or networking permitte
10、d without license from IHS-,-,-MIL-W-83 144A(USAF) Table I (continued) Character istic Type I Type II Type III Type IV Type V Yarn denier and ply Warp 2 10 840 840 840 2 10 Selvage 2 10/2 840/2 840/2 840/2 210/2 Filling 42 O 42 O 42 O 840 42 O Twist, turns/inch (Minimum) Warp 2.5 2.5 2.5 2.5 2.5 Fi
11、Il ing 2.5 2.5 2.5 2.5 2.5 Selvage 2.5 2.5 2.5 2.5 2.5 (Minimum) 2/ 1000 22 O0 3000 3500 1500 Breaking strength - - i/ - 2/ This requirement snall apply to each selvage edge, separately. No single determination shall be less than the minimum. 3.3 Weave. figure 1. 3.4 Nonf ibrous material. The water-
12、soluble and chloroform-soluble mate- rials shall be no more than 2.0 percent. The weave for all types of webbing shall be as shown in 3.5 Length of roll, Unless otherwise specified, each roll shall contain 100 + 10 yards. shall be not less than 10 yards in length (see 6.2). 3.6 not finer than 5-ply
13、cotton string doubled to not less than 6 inches long. The tickets shall be made of paperboard not less than 0.015 inch in thick- ness and the color shall be manila or light in intensity to permit easy reading of printed, stamped or typed markings. entries is prohibited. where a reinforcing patch (wi
14、th or without a metal eyelet) is firmly affixed for attaching the tying string. with water insoluble ink with the following information: A roll shall contain no more than 2 pieces and each piece Identification tickets. Each roll shall have a ticket attached with The use of handwritten The ticket sha
15、ll have clTpped corners at the end The ticket shall be legibly printed Stock number Nomenclature Specification number Yardage Contract number and date of manufacture (month and year) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W -83144A(USA
16、F) W c3 +a = c3-i -w a=m t. Q O M . .r W c3 a E3 WW dm c W 7 O a w- sa 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-83144A 3 7797706 0408414 1 MIL-W-83144A(USAF) Suppliers name Name of contracting agency 3.7 Fiber identification. Each roll
17、 of webbing shall be labeled, ticketed or invoiced for fiber content in accordance with the Textile Fiber Products Identification Act. 3.8 Workmanship. The finished webbing shall conform tothe quality and grade of product established by this specification. The occurrence of . defects shall not excee
18、d the applicable acceptable quality levels. 4. QUALIT ASSURANCE PROVISIONS 4.1 Responsibility for inspection, Unless otherwise specified in the con- tract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specif
19、ied in the contract or order, the supplier may use his awn or any other facilities suitable for the performance of the inspection requirements specified herein , unless disapproved by the Government. reserves the right to perform any of the inspections set forth in the speci- fication where such ins
20、pections are deemed necessary to assure supplies and services conform to prescribed requirements. The Government 4.1.1 Certificate of compliance. Where certificates of compliance are submitted, the Government reserves the right to check test such items to determine the validity of the certification,
21、 4.2 Quality conformance inspection. The quality conformance inspection shall consist of the examinations and tests specified herein. Except where otherwise specified, inspection shall be in accordance with MIL-STD-105. 4.2.1 Component inspection. The testing of components shall be as specified in t
22、able II. The lot size of the webbing and the number of component samples per lot size shall be as specified herein. acceptable if one or more samples fail to meet any requirements of this specification, The lot shall be un- Lot size (yards) Number of samples 800 or less 2 801 up to and including 22,
23、000 3 22,001 - 50,000 4 50,001 - 75,000 5 75,001 - 100,000 6 100,000 and over 6 + 1 sample for each 25,000 yard increment 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PlIL-W-83Lq4A 3 9979706 OYOL1L5 3 Table LI. Testing of components Characterist
24、ic Re qu ir emen t Test Method Yarn reference FTMS 191 Warp, filling and selvage: Nylon identification 3.1.1 - i/ Heat resistance 3.1.1 - i/ Light resistance 3.1.1 - I/ Lus ter 3.1.1 - 11 Preshrnkage 3.1.1 i/ Tenacity 3.1.1 i/ - Unbleached . 3.1.1 - i/ Ply Table I - i/ Melting point 3.1.1 1534 Denie
25、r Table I 402 1 Twist (turnslinch) Table I 4054 - i/ and it shall include: A certified statement that the yarn used is that specified in 3.1.1 along with the yarn producers type, identification data and melting point and supported by a certified copy of the yarn producers certification to the webbin
26、g manufacturer, A certificate of compliance shall be submitted for these requirements 4.2.2 Examination of the end item. Defects found during examinations shall be classified in accordance with 4.2.2.1 through 4.2.2.2.2. 4.2.2.1 Yard-by-yard examination. The webbing shall be examined on both sides a
27、nd visual defects classified as listed in table III. 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 defect shall be counted. A continuous defect sh
28、all be counted as one defect for each warpwise yard or fraction thereof in which it occurs. The sample unit for this examination shall be one linear yard. The sample size shall be in accordance with level III of MIL-STD-105. The acceptable quality level shall be 2.5 for minor defects and 0.65 critic
29、al defects per 100 units (yards). An approximate equal number of yards shall be examined from each roll selected. The number of rolls from which the sample is to be selected shall be in accordance with table IV, 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
30、rom IHS-,-,-flIL-W-3L44A 3 W 7779906 OLIOLtlb 5 W MIL-W-83 144A(USAF) Table III. Classification of defects Defect De s cr i p t i on Critical Minor Abrasion marks Broken or missing Broken or missing NOTE : end Coarse or light filling bar Twist or distortion Cut, hole, or tear Drop -p ly Resulting in
31、 rupture of yarns, or in nap sufficient to obscure the identity of any yarn exceed- ing 10 percent of width or 1 inch in length. Two or more regardless of length or a single and exceed- ing 6 inches in length. Single end under 6 inches but exceeding t inch, Two or more regardless of extent. The fill
32、ing tie-in or joining shall not be construed as a defect of any nature. Resulting in visible difference in stiffness or thickness of webbing and extending for more than k inch in the length direction. Resulting in visible difference in stiffness or thickness of webbing and extending for inch or less
33、 in the length direction. Webbing will not lay flat upon application of manual pressure due to twist or distortion. Any cut, hole or tear Clearly visible on more than 2 ends within same length and extending over 9 linear inches or more, L/ Clearly visible on 1 or 2 ends within same length and extend
34、- ing over 9 linear inches or more. L/ X X X X X X X X X X 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-W-83L44A 3 7777706 040LlL7 7 m MIL-W -83 144A (USAF) Table III. (continued) Defect Descr ,it ion Critical Minor Edges Frayed, slack or o
35、therwise poorly constructed and exceeding inch in length. X Floats or skips Hi tchback crack Jerked- in f i 1 1 ing , slough-off , slug Kinks Knots Mispick , double pick Slack end Three or more, inch or more in combined warp and filling directions or single float or skip over more than 1 inch. X Thr
36、ee or more, less than inch in combined warp or filling directions or single.float or skip over more - than k inch but not exceeding 1 inch, if in warp, or more than inch of width but not exceeding 1 inch if in f illing. Clearly visible opening between adjoin- ing picks, or warpwise tension area over
37、 part of the width resulting in visible light and heave places. i/ A clearly visible loop of filling pulled in at edges. L/ - Hore than 3 in any 9 linear inches. More than 1 knot in any 9 linear inches. One knot every 2 yards with untrimmed ends extending from surface of webbing. !ho or more across
38、the full width. Single across the full width. Two or more in the same length, jerked in between picks, or forming clearly visible loops on the surface. Single jerked in between picks or forming clearly visible loops on the sur face. 8 X X X X X X X X X X Provided by IHSNot for ResaleNo reproduction
39、or networking permitted without license from IHS-,-,-MIL-W - 83 144A (USAF) Table III. (continued) Defect Description Critical Minor Slub, or More than twice the thickness of X slug, gout the yarn (or ply, if plied) Smash Spot, stain or streak Tight end Any smash. X Any clearly visible. - i/ A minim
40、um of 12 inches in length. L/ Uneven weaving Two or more ends or picks extend- through out ing for more than 12 inches in length. L/ Wrong draw Extending for more than 9 inches. X X X - i/ Clearly visible at normal inspection distance (approximately 3 feet). Table IV. Sampling plan Lot size in yards
41、 Sample size Maximum number in rolls defects acceptable in sample (see 4.2,2.2) - up to 1200 L/ 3 1201 up to and including 3200 5 3201 up to S, inches. The minimum length of the specimen for tests shall be 45 inches. 4.6 Measurement of width, five (5) yards. The sample size for this determination sh
42、all be One measurement shall be made in each one (1) yard length 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W -83 144A (USAF) increment of the sample. tensioning, on a smooth horizontal surface. distance from edge to edge shall be measure
43、d to the nearest 1/32 inch in a line perpendicular to the lengthwise direction of the material. the selvage width the distance fran the outside edge to the inside edge of the selvage shall be measured to the nearest 1/32 inch in a line perpendicular to the lengthwise direction of the material. Deter
44、mina- tions shall be made on each selvage edge and reported separately. The width of the sample shall be the average of the five measurements. The material shall be placed flat, with hand For the overall width the For 5. PREPARATION FOR DELIVERY 5.1 Packaging. Packaging shall be level A, B, or C as
45、specified (see 6.2 and 6.2.1). 5.1.1 Levels A, B and C. Webbing, put up as specified shall be packaged in accordance with the applicable requirements of MLL-W-43334. 5.2 Packing. Packing shall be level A, B or C as specified (see 6.2 and 6.2 .I) . 5.2.1 Levels A, B and C. Webbing shall be packed in
46、accordance with the applicable requirement of MIL-W-43334. 5.3 Marking. or order, shipments shall be marked in accordance with MIL-W-43334. In addition to any special marking required by the contract 6, NOTES 6.1 Intended use. The webbing covered by this specification is intended for use in heavy du
47、ty high-speed ribbon parachute canopies. 6.2 Ordering data. Procurement documents should specify: a. Title, number anddate of this specification. b. Type. c. d. Selection of applicable levels of packaging and packing Length of roll required (if other than specified in 3.5). (see 5.1 and 5.2). 12 Pro
48、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-83 144A(USAF) 6.2.1 In the preparation of contracts or orders, it must be noted that various options, choices and alternatives, as indicated in MIL-W-43334, may be exercised in the preparation for delivery of webbing. Custodian: Air Force - 11 Preparing activity: Air Force - 11 Project No. 8305 - F054 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
