1、=5 MIL-C-4325bD 40 9979906 0484520 b W MIL-C-4 3256D 2 Julv 1991 SUPERSEDING MIL-C-43256C 9 June 1989 MILITARY SPECIFICATION CORD, FIBRWS, POLYESTER, SOLID BRAID This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specificatio
2、n covers a solid braided polyester coreless cord. 1.2 Classification. The braided cord shall be of one type, and in the diameters specified in 3.5 (see 6.2). 2. APPLICABLE Ixxmm“ 2.1 Goverment documents. 2. i. i Swcifications, stamaxis, anci .wb 0 The following spec fica- Unless otherwise specified,
3、 the issues of these documents tions, standards, and hanclbooks fonn a part of this doCCmient to the extent specified herein. are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Benefic
4、ial comnents (recomnendations, additions, deletions) ami any pertinent data which may be used in improving this document should be addressed to: Center, Natick, MA 01760-5019 by using the Standaniizatlon Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.
5、 U. distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ . MIL-C-4325bD L(0 9999906 0484521 MIL-C-43256D SPECIFICATIONS FEDERAL UU-T-81 - Tags, Shipping and Stock MILITARY MIL-C-3131 - Cordage; Packaging Of STAND- FEDERAL FED-
6、STD-191 - Textile Test Methods FED-STD-595 - Colors Used in Govenunent Prcxurment MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes (Unless otherwise indicated, copies of federal and military specifications, standanis, and handbooks are available from the Standardiza
7、tion Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Non-Government Publications. The following document fom a part of this document to the extent specified herein. the issues of the documents which are DoD adopted are those listed in the issue of the DODISS
8、cited in the solicitation. the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, Unless otherwise specified, AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 4268 - Testing Fiber Ropes (Application for cop
9、ies should be addressed to the American Society for =sting and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) (Non-Govenunent standards and other publications are nomlly available from organizations that prepare or distribute the documents. also my be available in or through libraries or
10、 other informational services. ) These documents 2.3 Wer of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this documsnt takes precedence. Nothing in this document, hawever, supersedes applicable laws and regulations unless a spe
11、cific exemption has been obtained. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4325bD 40 9999906 O484522 T W MIL-C-4 3256D . 3. REQu- % i 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection
12、 (see 6.3) in accordance with 4.3. a 3.2 Government and contractor purchases. The requirements specified in 3.8 and 3.9 apply only to cord prchased directly by the Government. other requirements apply both to cord purchased by a contractor as a carrponent for an end item and to cord purchased direct
13、ly by the Government. All 3.3 Standard sample. The cord shall match the standard sample for shade and shall be equal to or better than the standard sample with respect to all characteristics for which the standard sample is referenced (see 6.4). 3.4 Material. The yarn used in the fabrication of the
14、cord shall be a mltifilmnt, plied or single polyester yarn. When dyed cord is specified, the shade shall be obtained by yarn dyeing or piece dyeing and subsequently the material shall be processed to stabilize the yani or cord (see 6.5). It is encouraged that recycled material be used when practical
15、 as long as it mets the requirements of this specification. 3.5 Construction and phmical requ irements. The cord shall be a solid braid construction without a core. The fabricated cord shall have a compact structure of locked stitches forming a round, even, solid cord and shall be processed to meet
16、the requirements specified in table I when tested as specified in 4.4.3. The character of the cord shall be qual to the standard sample for roundness and firmness (see 6.4). TW I. Physical reuuirements Dieter Number of Breaking strength, Length Per Elongation in inches stramis porn& pound, feet perc
17、ent (+1/64) (minimum) (minimum) (minimum) (-1 3/32 8 1/8 9 205 310 360 220 25 25 5/32 12 400 140 25 3/16 12 7/32 12 1/4 12 540 725 945 99 25 71 25 53 25 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.- - MIL-C-4325bD 40 99999Ob O484523 II -_ MIL-
18、C-43256D TABLE I. Physical requirements (contd) * a Diameter Munber of Breaking strength, Ungth per Elongation in inches strands Po- pound, feet percent (+1/64) (minimum) (minimum) (minimum) 5/16 12 1575 34 25 3/8 12 1/2 12 1925 2950 25 14 25 25 3.6 Color. Unless otherwise specified (see 6.2), the c
19、olor of the cord shall be natural. When colored cord is specified, the cord shall be ctyed Camouflage Green 483, to approximate color chip 34094 of FED-STD-595 (see 6.6). 3.6.1 Colorfastness. The dyed cord shall Shaw fastness to weathering equal to or better than the standard sample or equal to or b
20、etter than a rating of “good“ when tested as specified in 4.4.3. 3.6.2 Matchinq. The color of the dyed cord shall match the standad sample when viewed under filtered tungsten lamps that approximate artificial daylight and that have a correlated color temperature of 7500 _+ 200K, with illumination of
21、 100 f 20 foot candles, and shall be a good match to the standard sample der incandescent lamplight at 2300 f 200K. * 3.7 Non-fibrous material (chloroform-soluble materiall. No extraneous material shall be added for the purpose of weighting the cord. formsoluble material of the coni shall not exceed
22、 4.0 percent when tested as specified in 4.4.3. The chloro- 3.8 Put-up. Unless otherwise specified (see 6.2), the cord shall be furnished without knots or splices on spools (reels) in the minimum lengths specified in table II. A plus tolerance of 10.0 percent shall be allowed on the length of spool
23、(reel) specified. Broken lengths will be permitted, but a spool (reel) shall contain not more than three pieces and no piece shall be less than 100 feet in length, or no more than two pieces with no applicable minimum length. The cord shall be wound on the spools (reels) so that each turn and layer
24、is free frm entanglement. sealed to prevent fraying. The ends of the coni shall be heat 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 i. MIL-C-4325bD 40 99999Ob 0484524 3 MIL-C-43256D TABLE II. Put-up spool (reel) lenath Diameter in inches Leng
25、th of spool (reel) feet (minimum) 3/32 1/8 5/32 3/16 3/16 7/32 1/4 5/16 3/8 3000 3000 3000 3000 100 lJ 2000 2000 1000 1000 1/2 1000 - i/ only one piece permitted. 3.9 Identification. Each spool (reel) of (identification tag) or label attached to it The ticket shall conform to the requirements of -T-
26、81. The ticket shall be made of not cord shall have a ticket for identification purposes. for type B, class 1, size 4 or 5 less &an 15 point paper stock and shall have a minimum tearing resistance in both directions (total) of 850 grams when tested as specified in -T-81. When labels are used, the la
27、bel shall be attached in such a manner as to remain in place and be clearly legible until all coni has been removed. All ticket or label entries shall be legibly printed, stamped, or ty with water insoluble ink. The ticket or label shall contain the follawing information: Stock number Namenclatm Siz
28、e (diameter) Specification number Contract number and date Contractor s name -nm 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- MIL-C-4325bD 40 W 999990b84525 5 W MIL-C-43256D 3.10 Workmanship. The end item shall conform to the quality of produ
29、ct established by this specification and the occurrence of defects shall not exceed the applicable acceptable quality levels. 4. QUALITY ASSURANCE PEIOVISIONS 4.1 Resuonsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the perfor
30、mance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the perfonn- ance of the inspection requirements specified herein, unless disapprove
31、d by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. Ail items shall meet all requi
32、rements of sections 3 and 5. specification shall became a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies sutmitted t
33、o the Government for acceptance comply with all requirements of the contract. inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize suhission of knuwn defective material, either indicated or actual, nor d
34、oes it camit the Government to accept defective material. The inspection set forth in this Sampling 4.1.2 Certificates of compliance. When certificates of compliance are sWtted, the Government reserves the right to inspect such items to determine the validity of the certification. 4.2 Classification
35、 of inspections. The inspection requirements specified herein are classified as follows: a. b. First article inspection (see 4.3). Quality conformance inspection (see 4.4). 4.3 First article inspection. When a first article is required (see 3.1 and 6.2), it shall be examined for the defects specifie
36、d in 4.4.2.1 and 4.4.2.2 and tested for the characteristics specified in 4.4.3. 4.4 Quality confonnance inspection. Unless otherwise spified, sampling for inspection shall be performed in accordance with MIL-STD-105. 4.4.1 Ccinuonent and material inspection. In accordance with 4.1, cqnents and mater
37、ials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase documnt. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
38、-c v MIL-C-4325bD 40 9999906 O484526 7 W L MIL-C-43256D 4.4.1.1 Caramnent and material certification. A certificate of cqliance my be acceptable as evidence that the material conforms to the requirements Q) specified in 3.4. 4.4.2 End item examination. 4.4.2.1 End item visual examination. The cord s
39、hall be examined for the defects listed in table III. their proximity to each other. The lot size shall be expressed in units of spools or reels of cord. cord. examined on each spool or reel of cord in the sample. The inspection level shall be II, and the acceptable quality level (AQL), expressed in
40、 term of defects per hundred units, shall be 1.5 for major defects and 4.0 for total (major and minor combined) defects. All defects shall be counted regardless of - The sample unit shall be one spool or reel of Wn percent of the total footage, but not less than 100 feet, shall be TABziE III. End it
41、em visual defects Classification Examine Defect Maior Minor Appearance and Any cut 101 workmanship Abraded surface, chafed or damaged 102 Kinks or unevenly braided resulting in open places, breaks in continuity of braids, or soft spots 103 Loosely braided 104 Broken, loose, or projecting strand or e
42、nd 105 Not equal to standard sample for roundness and firmness 106 Color other than specified Not unifonn 107 201 Cleanness Spot or stain clearly visible L/ 202 Identification Unitted, incorrect, illegible, ticket or insecurely attached label Ticket or label not as specified 203 204 - i/ At nonna1 i
43、nspection distance (approxhately 3 feet). for the defects listed beluw. The lot size shall be expressed in units spools or reels of cord. The sample unit shall be one spool or reel of 4.4.2.2 Lencath and windinu examination. The end item shall be examined 7 Provided by IHSNot for ResaleNo reproducti
44、on or networking permitted without license from IHS-,-,-MIL-C-4325bD 40 I -, I 9999906 0484527 9 E MIL-C-43256D a cord. and the acceptance number shall be 1. inspection level shall be S-3 and the AQL, expressed in tem of defects per hundred units, shall be 4.0. For lots consisting of 500 or fewer Un
45、its, the sample size shall be 10 The Defects shall be as listed below. mgth less than specified or more than 10 percent in excess of length specified. Length of cord on the spool (reel) is less thanmarked on the ticket or label. Improperly or not firmly wound resulting in kinking, knotting, entangli
46、ng, or slippage during unwinding, or otherwise affecting free unhampered unwinding of cord. Put-up not as specified. Any end not heat sealed. Any spool (reel) found to contain more than three pieces. Any piece less than 100 feet in length (except when there are only two pieces per spool). Any knot o
47、r splice. 4.4.3 End item testing. The methods of testing specified in FED-SlD-191, wherever applicable, ami as listed in table IV shall be follawed. When the data in the Wmber of determinations“ and “Results reported as“ columns are not specified in table IV, they shall be as required by the referen
48、ced test method. The physical and chemical values specified in section 3 apply to the average of the determinations made on a sample unit for test purposes as specified in the applicable test methods. units of spools or reels of cord, as applicable. one spool or reel of cord. table V. expressing the
49、 final result. The lot shall be unacceptable if one or more units fail to meet any requirement specified. Wsts to determine cmpliance with specification reqyirements, including quantity of delivery, may be made under prevailing atmospheric conditions. In cases of dispte, tests shall be made upon material which has reached equilibrium under standard conaitions as defined in FED-STD-191. The lot size shall be expr
