NAVY MIL-C-81104 A-1971 CORD POLYAMIDE HIGH TEMPERATURE RESISTANT《耐高温聚酰胺软线》.pdf

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1、MIL-C-8110C(Weps) 30 June 1964 MILITARY SPECIFIC A TION CORD, POLYAMIDE, HIGH TEMPERATURE RESISTANT This specification has been approved by the Naval Air Systems Command, Department of the Navy, 1. SCOPE 1.1 This specification covers the requirements for a high temperature resistant cord for use in

2、anti-G coveralls and related clothing. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of the specification to the extent speci- fied herein. SPECIFICATIONS Federal UU-T-81 Milit a ;y MIL-C-3 13 1 STANDARD

3、S Federal FED-STD- 19 1 Miiitary MIL-STD- 105 Tags, Shipping and Stock Cordage, Preparation for Delivery of Textile Test Methods Sampling Procedures and Tables for Inspection by Attribut es I FSC 4020 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,

4、-e -. . MIL-C-81104A(AS) MIL-C-LL04A 40 W 333330b 0423587 5 b- (When requesting any of the applicable documents, refer to both title and number. All requests should be made via the cognizant Government inspector. Copies of this specification and other unclassified specifications and drawings require

5、d by contractors in connection with specific procurement functions should be obtained upon application to the Commanding Officer, Naval Publications and Forms Center, 5801 Tabor Avenue, Philadelphia, Pennsylvania 19120. All other docu- ments should be obtained from the procuring activity or as direc

6、ted by the contract- ing officer.) i 3. REQUIREMENTS 3.1 Materials. 3.1.1 35 - Yarn. The yarn used in the manufacture of the cord shall be made from high strength, nonmelting, aromatic polyamide yarn. The yarn shall not carbonize (turn black or become a soft friable char) at a temperature below 427

7、C when tested as specified in 4.4. The plied yarns shall be twisted oniy from denier specified in Table I. TABLE I PHYSICAL PROPERTIES CHARACTERISTICS Yarn Denier Ply Twist (turns/inch) Spin Ply Picks per inch No, of carriers and ends per carrier Breaking strength, pound, min Elongation, percent, mi

8、n Length per pound of cord, yard, min REQUIREMENT 200 3 7.0 - 9.5 4-6 26 - 28 16/1 100 30 3 50 c 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-8 1104A(AS) 1c 3.2 - Color. Unless otherwise specified, the color (shade) shall be as specified b

9、y the procuring activity. 3.3 Construction and physical requirements. The finished cord shall conform to the requirements specified in Table I when tested as specified in 4.4. 3. 4 Identification ticket. Each holder of cord shall have a ticket attached with not finer than 5-ply cotton string doubled

10、 to not less than 8 inches in length, The ticket shall conform to the requirements for Type B, Class 1, Size 4 or 5 of -T-81, The ticket shall be made of not less than 20-point paper stock. The color shall be manila, light in intensity to permit easy reading of printed, stamped, typed, or penciled m

11、arkings, The ticket shall have clipped corners at the end when a reinforcing patch (with or without a metal eyelet) is firmly affixed for attaching the tying string. The ticket shall be legibly printed with the following information: Stock No. Nomenclature . Date of manufacture Spec if icat ion MIL-

12、C - 8 1104A(A S) Length Contract No. and date Suppliers name 3.5 Put-up and length. Unless otherwise specified (see 6.2), the cord shall be put-up in continuous lengths on spools (reels) as specified by the procuring activity . 3.6 Workmanship. The finished cord shall conform to the quality and grad

13、e of product established by this specification. The occurrence of defects shall not exceed the applicable acceptable quality levels. 4, QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the pe

14、rformance of all inspection requirements as specified herein. Except 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 Governmen

15、t reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed neces- sary to assure supplies and services conform to prescribed requirements, * 4.1.1 Certificate of compliance, Where certificates of compliance are submitted in accordance with

16、 4.4, they shall contain verifiable acttial test and inspection data. the cord to verify the validity of the certification. The Government reserves the right to inspect and test 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-BLLO4A 40 m 7777

17、70b 0427587 7 m MIL-C-81104A(AS) t 4.2 Inspection, Sampling for inspection shall be performed in accord- ance with MIL-STD- 105, except where otherwise indicated hereinafter, 4.2.1 Component and material inspection, In accordance with 4.1, com- ponents and materials shall be tested in accordance wit

18、h all the requirements of referenced specifications, drawings, and standards unless otherwise excluded, amended, modified, or qualified in the specification or applicable documents. 4.2.2 Samples for visual examination. The unit of product for this examination shall be one spool (reel). A sample siz

19、e for the visual examination shall be selected in accordance with MIL-STD-105, Inspection Level II, with an Acceptable Quality Level of 2.5 for major defects and 6.5 for minor defects per 100 units. The defects found shall be identified and classified in accordance with Table II. Defects listed shal

20、l be counted regardless of their proximity to each other, except where two or more defects represent a single local condition, in which case only the more serious defect shall be counted. TABLE II CLASSIFICATION OF VISUAL DEFECTS DEFECT Cut or hole, any. Abrasion, chafe area or distortion in the ori

21、entation of yarn, Kinks, or unevenly braided resulting in open places, breaks in continuity of braid or soft spots. Floats, broken or missing ends or picks, Over 1 knot per 10 linear yards in plied yarns. One knot per 10 linear yards in plied yarns. Color other than specified. Put-up other than spec

22、ified. Spot or stain clearly visible J/. Objectionable odor. 4 MAJOR X X X X X X X MINOR X X X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-81104A(AS) MIL-C-BLLOYA 40 m 777970b 0427570 5 m TABLE II (Continued) DEFECT 1 MAJOR 1 MINOR Iddent i

23、f ic atio n omitted. Idormation incorrect, illegible. Ticket not as specified, X X X - i/ At normal inspection distance (approximately 3 feet). 4.2.3 Examination for length and winding. The sample unit for this examination shall be one spool (reel), The determination of the lot size shall be as spec

24、ified in 4.2.2. The inspection level shall be Level S-3 and the Acceptable Quality Level shall be 4. O percent defective. For lots consisting of 500 or fewer units, the sample size shall be 10 and.the acceptable number 1. The lot size shall be the number of spools (reels) in the lot. Defects shall b

25、e as listed in 4.2.3,l and 4.2.3.2. The length on the spool (reel) shall be determined by measuring or by using the following formula: W x L = Length per spool (reel) in feet where W = net weight of the spool (reel) in O. 1 pounds L = lot average of the weight - length relationship (length/pound) as

26、 determined in 4.3.1 4.2.3.1 Defects with regard to length. Defects shall be considered to exist if any of the following are determined during inspection: (a) The length of cord is less than specified or more than 10 percent in excess of the length specified. (b) Length of cord on spool (reel) is mo

27、re than 6 feet less than length marked on ticket or label. 4.2.3.2 Defects with regard to windiag. Defects shall be considered to exist if any of the following are determined during inspection: (a) Improperly or not firmly wound resulting in kinking, knotting, entangling, or slippage during unwindin

28、g or otherwise affecting free unhampered unwinding of cord, (b) put-up not as specified. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-BLL04A 40 W 9999706 0435355 3 I MILC-81104A( AS) t examination shall be made to determine that packaging,

29、and packing require- ments of Section 5 of this spicification are. complied FJith. shall be in accordance with provisions of MIL-G-3131, except that the inspection levei shall. be S-2 snd the AQL shall be 2.5 defects pr 100 units. f it 4.3 Examination of preparation for delivery requirements, An The

30、 examination )+*A Testins of the end item, The methods of testing specified in FED-STD-131 wherever applicable and as listed in Table IV shall be followed. to the results of the determinations made on a sample unit for test purposes as specified in the applicable test methods. All test reports shall

31、 contain the individual valuss utilized in expressing the final result. size shall be in accordance with Table III. if one or more units fail to meet any requirement specified. shall be expressed in units of 1 yard, be 6 yards of cord. The physical and chemical values specified in Section 3 apply Th

32、e sample The lot shall be unacceptable The lot size The sample unit for testing shall TABLE III, SAMPLING FOR TESTS ISAMPLE SIZE I NO, OF UNITS IN LOT El00 or less 2 801 up to and including 22,000 3 22,001 and over 5 TmLE IV TEST METHODS CHARACTERISTI Yarn Melting point Denier PlY Twist Spin Ply Pic

33、ks per inch Breaking strength Elongation Length per pound TEST METHOD 1534 I/ 4021 1/ Vi cual 4052 4054 Visual 4102 4102 2/ 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-P _. . . .- ._I . MIL-C-!llOL+A( AS) Unless otherwise specified, a certifica

34、te of compliance shall be submitted and will be accepted for the stated requirement. Jt 4.4.1 Determination of length per Dound. A specimen of cord shall be put under a tension load equal to 1 percent of the minimum specified breaking strength. accurately measured and marked on the specimen to the n

35、earest 1/4 inch. After marking, the tension load shall be removed and length measured shall be cut out of the test specimen and accurately weighed to within plus or minus 1.0 percent of its total weight. be made per sample unit and the results averaged to the nearest 0.1 foot. A minimum length of 10

36、 feet shall be Three determinations shall I * 5. PREPARATION FOR DELIVERY 5.1 (see 6.2). Packaging. Packaging shall be Level A or C as specified 3.1.1 Levels A and C. Cord shall be packaged in accordance wit.h the applicable requirements of MIL-C-3131. 5.2 Packing. Packing shall be Level A, B or C a

37、s specified (see 6.2). 5.2.1 Levels A, B and C. Cord shall be packed in accordance with the applicable requirements of MIL-(3-3131. 5 -3 Marking. In addition to any special marking required by the contract or order, interior packages and shipping containers shall be marked in accordance with MIL-C-3

38、131. 6. NOTES 6.1 Intended use. The cord covered by this specification is intended for use in the construction of anti-G coveralls arid related clothing. 6.2 Ordering data. Procurement documents should specify the following : (a) (b) Title, number, and date of this specification. Color (shade) requi

39、red (see 3.2). (c) (d) Length of roll (see 3.5). Selection of applicable levels of packaging and packing (see 5.1 and 5.2). 7 -, ! Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-c-oA ( AS) * 6.3 Marginal notations. ”he margins of this specificat

40、ion are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. to evaluate the requirements of this docum

41、ent based on the entire content irrespective of the marginal notations and relationship to the previous issue. This was done . Bidders and suppliers are cautioned Preparing activity: Project No. 4020-NO07 Navy - AS 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-