1、1 MIL-S-126qSC 37 m 7777706 O283333 O s i MIL-S-12645C 1.2 Classification. 6.2): Ins ide Type perimeter (feet) 24 24 February 1984 SUPERSEDING MIL-S- 12645B 9 March 1973 MILITARY SPEC IF ICAT ION SLINGS, ENDLESS, FIBER ROPE AND NYLON mBBING This specification is approved for use by all Departments a
2、nd Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers fiber rope and nylon webbing endless slings. Slings shall be the following types, as specified (see Rope Nylon webbing Number of circumference (inches) width (inches) PlY II 40 III 80 IV 80 V 24 VI 40 VI1 80 VI11
3、 80 3 3-114 3- 1/ 2 4 - Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: USA Belvoir Research and Development Center, ATTN: 22060 by using the sel-addressed Standardization Document Improvement p
4、roposal (DD Form 1426) appearing at the end of this document or by letter. STRBE-DS, Fort Belvoir, VA FSC 3940 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-1264SC 37 = 777770b 0281334 2 = _- - - _ - M IL-S- 12 645C , 2. APPLICABLE DOCUMENTS
5、2.1 Government documents. 2.1.1 Specifications, and standards. Unless otherwise specified, the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standard (DoDISS) speci- fied in the solicitation form a part of this speci
6、fication to the extent speci- fied herein. SPEC IF ICAT IONS FEDERAL T-R-605 T-T-616 PPP-B-601 PPP-B-6 36 PPP-B-640 STANDARDS FEDERAL FED-STD- 19 1 MILITARY MIL-STD-105 MIL-STD- 12 9 MIL-STD-130 MIL-STD- 1188 (Copies of specifi ation - Rope, Manila and Sisal. - Treatment: Mildew Resistant, for Rope
7、- Boxes, Wood, Cleated Plywood. - Boxes, Shipping, Fiberboard. - Boxes, Fiberboard, Corrugated, Triple and Cord. Wall. - Textile Test Methods. - Sampling Procedures and Tables for - Marking for Shipment and Storage - Identification Marking of US Military - Comercial Packaging of Supplies and Inspect
8、ion by Attributes. Property. E qu i pen t. and standards required by contractors in connection with- specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Order of precedence. In the event of a conflict between the test of thi
9、s specification and the references cited herein, the text of this specifi- cation shall take precedence. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-12645C = Type I II III IV 3. REQUIREMENTS 3.1 Description. Each sling shall be a continuo
10、us length of manila rope or nylon webbing with its end spliced together to form a loop. Breaking strength Safe working Rope circumference Perimeter and (minimum) load - 11 (nominal) to 1 er anc e pounds pounds inches feet 8,100 1,620 3 24 + 1.5 9,450 1,890 3-114 40 2.0 10,800 2,160 3-112 80 4.0 13,5
11、00 2,700 4 80 I 7 4.0 3.2 First article. When specified (see 6.21, a sample shall be subjected to first article inspection (see 4.3 and 6.3). 3.3 Materials. Materials shall be as specified herein. Materials not specified shall be selected by the contractor and shall be subject to all provisions of t
12、his specification (see 6.4). 3.3.1 Fiberrope. The fiber rope shall conform to T-R-605, type M, class 2, and shall be mildew resistant treated in accordance with T-T-616. 3.3.2 Nylon webbing. The nylon webbing sling shall be fabricated from con- tinuous-filament heat and light resistant nylon fiber.
13、long chain polymer made of hexamethylene diamine and adipic acid, or a long chain polymer of epsilon amino caproic acid. Mixtures of nylon fiber types shall not be employed in any one sling. The nylon shall be a 3.4 Construction. 3.4.1 Sling characteristics. Fiber rope slings shall conform to table
14、I and the nylon webbing slings shall conform to table II. i/ Safe working load is the maximum recommended load based on a safety factor of 5. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE II. Nylon webbing sling characteristics. a V VI VI1
15、VI11 Breaking strength Safe working Sling width Type I (minimum) 1 load - i/ I pounds pound s inches 9,000 1,800 1 15 O00 7 , O00 2 22 500 4 , 500 3 30,000 6,000 4 1 1 1 1 to ler ance feet 24 + 1.5 40 2.0 80 4.0 80 T4.0 - - if Safe working load is the maximum recommended load based on a ssfety facto
16、r of 5. - 3.4.2 Splices. Fiber rope short splices shall have five tucks on each side, consisting of three fullstrand tucks and two half-strand tucks. Before the last two tucks of each strand are made, the strands shall be reduced in thick- ness by one-half to taper the splice. form a tight and neat
17、splice. The ends of each strand shall protrude at least 3/4 inch beyond the last tuck. with nylon thread. Each tuck shall be pulled up snugly to Nylon webbing shall be splice: by stitching 3.5 Performance. The sling shall meet the breaking strength requirements shown in tables I and II when subjecte
18、d to the test specified in 4.5.2.1. 3.6 Identification. Identification shall be in accordance with MIL-STD-130. A metal tag shall be securely attached to each sling. corrosion resistant and of O. 016 inch minimum thickness, securely fastened with corrosion resistant wire of 0.047 inch minimum diamet
19、er. the following information etched or embossed legibly thereon: Metal tags shall be This tag shall have 1. Nomenclature. 2. Specification and type. 3. National stock number. 4. Safe working load, pounds 5. Manufacturers code and 6. u. s. (see 3.4.1). Contract No. Sling, endless (fiber rope or nylo
20、n webbing) MIL-S- 12645 NSN 3940- Safe working load: pounds - KFRs Code : Contract No, U.S. 3.7 Workmanship. The finished slings shall be clean and shall conform to the quality and grade of product as required by this specification. 4 Provided by IHSNot for ResaleNo reproduction or networking permit
21、ted without license from IHS-,-,-MIL-S-12645C 4. 4.1 Responsibility for inspection. Unless otherwise specified in the QUALITY ASSURANCE PROV IS IONS contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise s
22、peci- fied in the contract or purchase order, the 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 th
23、e specification where such inspections are deemed necessary to assure that supplies and services con- form to prescribed requirements. 4. I. 1 Cmponent and material inspection. The contractor is responsible for insuring that components and materials used are manufactured, examined, and tested in acc
24、ordance with referenced specifications and standards. 4.2 Classification of inspections. Inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). c. Inspection of packaging (see 4.6). 4.3 First article ins
25、pec tion. 4.3.1 Examination. The first article sling(s) shall be examined as speci- fied in 4.5.1. Presence of one or more defects shall be cause for rejection. 4.3.2 Test. The first article sling(s) shall be tested as specified in 4.5.2.1. Failure of the test shall be cause for rejection. 4.4 Quali
26、ty conformance inspection. 4.4.1 Sampling. 4.4.1.1 Examination. Sampling for examination shall be in accordance with MIL-STD-105. 4.4.1.2 Test. inspec tion level S-2. Sampling for test shall be in accordance with MIL-STD-105, - 4.4.2 Examination. Samples selected in accordance with 4.4.1.1 shall be
27、examined for the defects specified in 4.5.1. de fec tive. The AQL shall be 1.5 percent 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.4.3 Test. Samples selected in accordance with 4.4.1.2 shall be tested in Failure of any sample shall be cause f
28、or rejection of * accordance with 4.5.2.1. the entire lot represented by the sample. 4.5 Inspection procedure. 4.5.1 Examination. The sling shall be examined as specified herein for the following defects: 101. Materials not as specified. 102. 103. Sling not spliced as specified. 104. Identification
29、marking missing, incorrect or illegible. 105. Workmanship not as specified. Sling does not meet dimensional requirements. 4.5.2 Test. 4.5.2.1 Breaking strength. The sling shall be tested for breaking strength h accordance with FED-STD-191, method 6015, except that the tensile load shall be applied t
30、hrough mandrels not less than 4 inches in diameter. the sling to be tested shall be a single length of sling which shall be cut from that portion of the sling containing the splice and which shall be positioned so that the splice will be midway between the mandrels when making the tensile strength t
31、ests. Nonconformance to 3.5 shall constitute failure of the test. The specimen of 4.6 Inspection of packaging. 4.6.1 Qualis conformance inspection of pack. 4.6.1.1 Unit of product. For the purpose of inspection, a completed pack prepared for chipent shall be considered a unit of product. 4.6.1.2 Sam
32、pling. Sampling for examination shall be in accordance with MIL-STD-105. 4.6.1.3 Examination. Samples selected in accordance with 4.6.1.2 shall be examined or the following defects. AQL shall be 2.5 percent defective. 106. 107. Box closure and sealing not as specified for level A. 108. 109. Quantiti
33、es of slings packed together exceed the size or Containers not as specified for level A or B. Slings of unlike description packed together for level A or B. weight limitations of the applicable box specification for level A or B. document for commercial. 110. Preservation and packing not in accordan
34、ce with the referenced 111. Marking missing, illegible, incorrect or incomplete. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. t - MIL-S- 12645C b 5. PACKAGING 5.1 Preservation. Preservation shall be level A or commercial as specified (see 6.2)
35、. O 5.1.1 Level A. Each sling shall be coiled to the minimum practicable size, secured to prevent uncoiling and placed in a close-fitting box conforming to PPP-B-636, type CF, class weather resistant, variety SW, grade as applicable to the weight of the sling. Method V in accordance with the appendi
36、x to the box specification. Box closure and sealing shall be as specified for 5.1.2 Commercial. Slings shall be preserved in accordance with MIL-STD-1188. 5.2 Packing. Packing shall be level A, B or commercial as specified (see 6.2). 5.2.1 Level A. Slings of like description shall be packed together
37、 in a close-fitting box conforming to PPP-B-601, overseas type, style optional, in quantities not to exceed the weight limitation of the box, strapping shall be in accordance with the appendix to the box specification. Box closure and 5.2.2 Level B. Slings of like description shall be packed togethe
38、r in a closefitting box conforming to PPP-B-601 domestic type, style optional; or in a close-fitting fiberboard box conforming to PPP-B-640, class 2, style optional, or PPP-B-636, V3c Vllc, V13c or V15c. The gross weight or size of each box shall not exceed the limitations of the applicable box spec
39、ification. Box closure and strapping shall be in accordance with the appendix to the applicable box spec if icat ion. * 5.2: 3 Commercial. Slings shall be packed in accordance with MIL-STD-1188. 5.3 Marking. 5.3.1 Military. Marking for military levels of protection (level A or B) shall be in accorda
40、nce with MIL-STD-129. 5.3.2 Coinmercial. Marking for commercial packaging shall be in accordance with MIL-STD-1188. 6. NOTES 6.1 Intended use. The endless slings are intended for use in cargo and material handling operations. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
41、hout license from IHS-,-,-6.2 Ordering data. Acquisition documents should specify the following: a. Title, number and date of this specification. b. Type af sling required (see 1.2). c. When a first article is required for inspection and approval and the number of units required (see 3.2, 4.3 and 6.
42、3). d. Degree of preservation and degree of packing required (see 5.1 and 5.2). 6.3 First article. When a first article inspection is required, the item will be tested and should be a preproduction model. The first article should consist of one or more units. The contracting officer should include s
43、pecific instructions in acquisition documents regarding arrangements for examinations, test and approval of the first article. 6.4 Recycled material. It is encouraged that recycled material be used, when practical, as long as it meets the requirements of this specification (see 3.3). Cus todians: Aw
44、 -ME Air Force - 99 Preparing activity: Army - ME Project 3940-0164 Review ac t ivi t ies : AT - MT, AV Air Force - 84 DLA - IS User Activity: Navy - YD, SH *U.S. GOVERNMENT PRINTING OFFICE: 1984-705-040/A1489 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
