1、17 March 1988 SUPERSEDING MIL-T-5661 D I 16 September 1970 MILITARY SPECIFICATION I TAPE AND WEBBING, TEXTILE, WOVEN REINFORCING, COTTON This specification is approved for use by all Departments and Agencies of the Department of Defense. I* 1. SCOPE 1.1 Scope. This Specification covers five types of
2、 woven cotton reinforcing textile tape and webbing intended for use in the manufacture of aeronautical equipment. types, as specified (see 6.2). r 1.2 Classification. The tape and webbing shall be of the following Type I - Plain weave Type II - Double herringbone Weave Type III - Twill weave Type V
3、- Plain (transverse cord) weave Type VI - Nonelastic weave 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The fol lowing specifications and standards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the
4、se 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 solici tation. SPECIFICATIQNS I Mi 1 i tary MIL-D-5549 MIL-W-43334 Dope; Ce1 1 Ulose-Acetate-Butyrate C1 ear For Aircraft Use Webbing and T
5、ape, Texti le, Packagi ng and Packing of Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Systems Engineering and Standardization Department (Code 531, Naval Air Engineering Center, Lakehurst, NJ
6、 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or bJ -1 - TAINS p PAGES. FSC 8315 . - -.- THIS DOCUMENT COP AMSC N/A DISTRIBUTION STATEMENT A: Approved for public release? distribufl-on is un1 imi ted. Provi
7、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS Federal FED-STD-191 Mi 1 i tary MIL-T-CbbLE 3 77777Ob 0375293 7 W MI L-T-5661 E Textile Test Methods MIL-STD-105 Samr, ing Procedures and Tab Attii butes es for Inspection by 2.1 .2 Other Governmen
8、t documents. The fol lowing other Government document forms a part of this specification to the extent specified herein. Unless otherwise specified, theissues shall be those in effect on the date of the solicitation. FEDERAL TRADE COMMISSION Textile Fiber Products Ident!fication Act (Copies of speci
9、fications, standards and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity. 1 2.2 Other publications. The following document forms a part of this sDecification to the exte
10、nt specified herein. Unless otherwise specified, the issues of the documents whichare DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise spec- ified, the issues of documents not listed in the DODISS shall be the issue of the nongovernment doc
11、uments which is current on the date of the solicitation. COLOR ASSOCIATION OF THE UNITED STATES, INC. TCA Cable Numbers and Colors (Applications for copies should be addressed to the Color Association of (Nongovernment standards and other pub1 ications are normally available the United States, Inc.,
12、 343 Lexington Avenue, New York, NY, 10016.) from the organizations which prepare or which distribute the documents, These documents also may be available in or through libraries or other informational servi ces. 1 2.3 Order of precedence. In the event of a conflict between the text of this specific
13、ation and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this specification shall take precedence. shall supersede applicable laws and regulations unless a specific exemption has been obtained. Nothing in this specificatio
14、n, however, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-5661 E 3. REQUIREMENTS 3.1 Materials. The tape and webbing shall be made from carded or combed yarns evenly spun from cotton of a grade and staple length that will produce a material
15、 meeting the requirements specified herein. 3.2 Weave. 3.2.1 Type I. The weave of Type I shall be plain (1 up and 1 down). 3.2.2 Type II. The weave of Type II shall be.that commercially designated as 2-up, 2-down herringbone twill, having 3 reversals .of twi 1 at the center and 1 on each side of the
16、 center midway between the center each edge. The tape or webbing shall be made with 2 ends weaving as one all ends weaving singly in the warp. 91 and or 3.2.3 Type III. The weave of Type III shall be a 2-up and 2-down twill with reversal at 1/4 and 3/4 of the width. 3.2.4 Type V. The weave of Type V
17、 shall be plain with 2 warp yarns weaving as 1, except that at the selvage there shall be 3 warp yarns weaving singly . 3.2.5 Type VI. The weave of Type VI shall be what is commercially known as “nonelastic“ and shall be in accordance with Figure 1. The ground and binder warp ends shall be 2 ply. Th
18、e stuffer warp ends shall be 5 ply. The filling yarn shall be evenly distributed between the face and back of the tape and webbing. The 1 inch shall contain 24 ends in each selvage or 12 ends in each selvage. 3.2.6 Filling yarn. The weave for all types shall be with one filling yarn per shed when a
19、shuttle loom is used. The weave for all types shall be with two filling yarns per shed when a shuttleless loom is used (see 6.2). 3.3 Construction and physical properties. The construction and physical properties of the tape and webbing shall be as specified in Table I. When latch type shuttleless l
20、ooms are utilized, the filling yarn shall traverse the full width of the tape and shall be held at the edge by an extra catch-cord end interlacing with the filling yarn, in a method depicted in Figure 2 or 3. When bobbin type shuttleless looms are utilized, interlacing of the catch-cord and filling
21、shall occur within the selvage area before the first binder end (Figure 4). 3.4 Extractable matter. The natural color tape and webbing shall con- tain no more than 5.0 percent methyl-ethyl ketone extractable matter, and the dyed tape and webbing shall contain no more than 4.0 percent methyl-ethyl ke
22、tone extractable matter, when tested as specified in 4.3. 3.5 Acidity (pH). The water extract of the tape and webbing shall have a pH of 6.0 to 8.0, when tested as specified in Table IV. 3.6 Compatibility with dope. The Type I tape and webbing shall. be compatible with aircraft dope. The dope shall
23、dry within 45 minutes and show no signs of cracking and peeling when applied to the finished tape and webbing as specified in 4.4.2. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A 6 C ,D E F MIL-T-5hbLE 83 W I- Oh 0375245 2 - MIL-T-5661 E A. C.
24、D. E* F. 1 2 BINDER WARP ENDS 2 FACE WARP ENDS EACH 2 STUFFER WARP ENDS 2 BACK WARP ENDS EACH FIGURE 1. Construction, Type VI. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-l I I ! a MIL-T-5661 E AGE LOCKED BY KNITTING NG LOOPS SIMULTANEOUSLY ADD
25、ITIONAL CATCH THREAD G “INCLINED“ LATCH NEEDLE. FIGURE 2. C-atch-cord diagram, 1 atch type. FIGU.RE. . 3, Catch-cord diaqram, 1 atch type. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-5661E . .- WARP END FIGURE 4. Catch-cord diagram, bobbin
26、type. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. I al -.!= I- CC) VI VI .o C) o :Y f ,“ -5 . VI VI *cm a-t- E .c o VIs o O E I- cal .* . :5 -* 3 .o .c L ul MIL-T-566 IE *e* NNNNNNN NNN *e - .- N N- mm _-._ L al % cc 3 ci v) L al U C .I- m U
27、c 3 O L cl ID e h m N N Y) m r. N m N m al al VI N Y) F m o: m N - c .- -._ N . -A ? N m: al al v) rmmmn mwmoh ON* mo 000000 0000000 O00 0- . 9Y . . *. .: .?:?u - -“CI mm O0 N? Ca - m ID al al VI VI L e I) E C L ia h U al ci VI al rn wl 3 VI L O IL .-I 5 7 Provided by IHSNot for ResaleNo reproductio
28、n or networking permitted without license from IHS-,-,-NIL-T-5bbLE 83 m 777770$ 0375247 T MIL-T-5661 E 3.7 Color. Unless otherwise specified, the color for all types of tape and webbing shall be natural (unbleached). When an olive drab color is spec- ified, the tape or webbing shall match TCA Cable
29、No. 66022, Shade s-1 (U.S. Army O1 i ve Drab). 3.7.1 Colorfastness. The dyed tape and webbing shall show at least “good“ colorfastness to water, salt water (without soap) and light at 20 Standard Fading Hours and good resistance to crocking when tested as specified in Table IV, 3.8 Length and put-up
30、. Unless otherwise specified, tape and webbing shall be furnished on rolls, containing 100 5 10 yards. Each roll shall contain not more than 3 pieces, and no piece shall be less than 5 yards long. Tape and webbing 1/2 inch or less in width may be furnished on double-headed spools or tubes containing
31、 500 2 10 yards. Each spool or plastic tube shall have not more than 6 pieces, and no piece shall be less than 5 yards long. 3.9 Identification ticket. Each roll, spool or tube of tape or webbing shall have an identification ticket attached in accordance with MIL-W-43334. 3.10 Fiber identification.
32、Each roll, spool or tube of tape or webbing shall be labeled, ticketed or invoiced for fiber content in accordance with the Textile Fiber Products Identification Act. 3.11 Workmanship. The finished tape or webbing shall conform to the quality and grade of product established by this specification. r
33、ence of defects shall not exceed the levels set by the applicable quality levels. 4. QUALITY ASSURANCE PROVISIONS The occur- 4.1 Responsibility for inspection. Un ess otherw se specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requiremen
34、ts as specified herein. Except as otherwise spec- ified in the contract or purchase order, the contractor may use his own or any other faci li ties sui table for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right t
35、o perform any of the inspections set forth in the specifi- cation where such inspections are deemed necessary to assure supplies and servi ces conform to, prescribed requirements. 4.1.1 Responsi bi 1 i ty for compl iance. Al 1 i tems must meet al 1 require- ments of Sections 3 and 5. The inspection
36、set forth in this specification shall become a part of the contractors overall inspection system or quality program. 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 contrac
37、t. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. The absence of any inspection requirements in the specification 8 Provided by IHSNot for ResaleNo reproduct
38、ion or networking permitted without license from IHS-,-,-MIL-T-5661 E 4.2 Classification of inspections. The inspections specified herein are classified as quality conformance inspections, 4.3 Quality conformance inspection. Quality conformance sampling and inspection shall be performed in accordanc
39、e with the provisions herein and in MIL-STD-105, except where otherwise indicated. 4.3.1 Inspection of the end item. The end item shall be inspected for defects in accordance with 4.3.1.1 through 4.3.1.5. 4.3.1.1 Yard-by-yard examination. The required yardage of each roll, spool or tube shall be ins
40、pected on both sides and.visua1 defects classified as listed in Table II. All defects found shall be counted regardless of their proximity one to another except where two or more defects represent a single local condition of the tape or webbing, in which case only the more serious defect shall be co
41、unted. 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 examination shall be one linear yard. The sample size shall be in accordance with Inspection Level II of MIL-STD-105. Level shall be 2.5 for major defec
42、ts and 6.5 for total defects per 100 units. The lot size shall be expressed in units of one linear yard each. An approximately equal number of yards shall be examined from each rol 1 selected. be in accordance with Table III of this specification. The Acceptable Qual i ty The number of rolls from wh
43、ich thesample is to be selected shall TABLE II. Classification of defects. -.- Exami ne Defects ,-=- I_I_ I_.y.- *“ -.- - -In .- - - . .-. I -. - Abrasion mark, Resulting in rupture of individual brui se 1 yarns or plies, distortion in the distortion, areas visibly thinner than Broken or mi ssi ng 1
44、 Any end i I Broken or missing I 2 or more within a linear inch, regard- less of the size of missing portion 1 orientation of threads, dimensional t i adjoining unaffected areas i pick 1 I i width Single, missing for more than 1/4 inch i Coarse filling I Yarn larger in diameter than in bar adjoining
45、 unaffected area resulting in increased stiffness or thickness Crease i Twisted or distorted, will not lay flat; . upon application of manual pressure i Cut, hole, tear i (See “Broken ends“ and “Broken picks“) i (including edges) i t X I “ -. . - - . , Mi nor 9 Provided by IHSNot for ResaleNo reprod
46、uction or networking permitted without license from IHS-,-,-MIL-T-SbbLE 83 = 997770b 0375251 MIL-T-5661 E TABLE II. Classification of defects (continued). I Double end ! 1 1 Drop-ply ; I 1 i : Edges cut or i frayed i Edges beaded or i corded I 1 Edges folded or , rolled i Edges loopy i i Edges loose
47、 I 1 ; Edges tight Edges scalloped ! i Fine or light i filling bar i i Float ? ! t i Identification label Resulting from wrong draw (see “Wrong draw II 1 Clearly visible, on more than 2 ends within same length and extending over 9 linear inches or more Clearly visible, on 1 or 2 ends within same len
48、gth and extending over 9 linear inches or more i Clearly visible j , i Visible increase in thickness or mis- ! formed selvage i (See llCreasell : Forming clearly visible filling loops : or edges tied loosely to body for 2 ; 1 inear inches or more I Resulting in waviness, distortion in 1 orientation
49、of filling, or looseness : along edges ; Resulting in visible tension along edge, I or pucker, waviness, bagginess or slack- : ness that cannot be flattened by manual : pressure ;Any visib Clearly v Hu1 tiDle. e indentation of edge sible 112 inch or more in combined warp and-f i 11 i ng directions, or single, floating over more than 1 inch Multi
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