1、- I J -s-L) MIL-S-1698G 28 August. 1984 SUPERSEDING MIL-S-1698F 15 June 1972 * MILITARY SPECIFICATION SLINGS, BAG AND CASE CARRYING This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This document covers three types of adjustable
2、carrying slings. made of webbing with hardware attached. 1.2 Classification. 1.2.1 Types. Slings shall be of the following types as specified (see 6.2). Type I - General Purpose Type II - ST-19-A Type III - 19-3/4 Inches Long 2. APPLICABLE DOCUMENTS * 2.1 Government documents. Unless otherwise speci
3、fied, the following documents, of the issue in effect on date of invitation for bids or request for proposal, farm a part of this document to the extent specified herein. Berief-icial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this docume
4、nt should be addressed to: U.C. Army Natick Research and Development Center, Natick, MA 01760-5014, by using the self-addressed-Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. FSC 8465 3.- . THIS DOCUMENT CONTAINS /3. FAG-ES. 1 License
5、d by Information Handling ServicesSPECIFICATIONS FEDERAL V-T-285 TT-E-529 W-P-268 DDD-L-20 PPP-B-636 MILITARY MIL-F-495 MIL-C-496 MIL-W-530 MIL-B-543 MIL-L-3851 MIL-S-1698G Thread, Polyester. Enamel, Alkyd, Semigloss Paper, Kraft, Wrapping. Label; For Clothing, Equipage, and Tentage, Boxes, Shipping
6、, Fiberboard. (General Use). Finish, Chemical, Black, For Copper Alloys. Clips, End, Strap. Webbing, Textile, Cotton, General Purpose, Natural Buckles, Tongueless and Web Strap. Loops, Slide (For Equipage). or in Colors. MIL-L-11075 - Loops, Strap Fastener. MIL-S-43770/1- Snap Hooks, Wire Body, Fixe
7、d Loop Eye, Flat Spring MIL-W-44049 - Webbing, Textile and Tape, Textile, Polypropylene, Closure, with Retainer. General Purpose, Natural or in Colors. FEDERAL FED-STD-751 - Stitches, Seams, and Stitchings. MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking
8、 for Shipment and Storage. MIL-STD-147 - Palletized Unit Loads Attributes. DRAWINGS U.S. ARMY NATICK RESEARCH AND DEVELOPMENT CENTER 2-1-80 - Sling, Bag and Case Carrying, Type I, General 2-2-256 - Sling, Bag and Case Carrying, Type III, 19-3/4 2-4-68 - Sling, Bag and Case Carrying, Type II, ST-19-A
9、 Purpose. Inches Long; Assembly and Details. Assembly Complete. 2 c l Licensed by Information Handling ServicesMIL-S-1698G (Copies of documents required by manufacturers connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting
10、officer). * 2.2 Other publications. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this document to the extent specif ied herein. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) B .633 D 3951 - Standard Practice for Commercial
11、Packaging - Electrodeposited Coatings of Zinc on Iron and Steel (Application for copies should be addressedto the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Technical society and technical association documents are generally available for reference from l
12、ibraries. They are also distributed among technical groups and using Federal agencies .) * 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document shall take precedence. 3. REQUIREMENTS 3:l .Guide samples. Sampl
13、es of the end item, when furnished, are solely for guidance and information to the manufacturer (see 6.3). Variation from this document may appear in the sample, in which case this document shall govern. 3.2 First article. When specified a sample shall be subjected to first article inspection (see 4
14、.3, 6.2, and 6.4). 3.3 Materials. (See 6.6). 3.3.1 Webbing. I. * 3.3.11 Webbing for type I sling. The 2-inch webbing shall be cotton conforming to type IIa, class 4 of MIL-W-530, or as an alternate, the webbing shall be polypropylene conforming to type IIa, class 4, of MIL-W-44049. The webbing shall
15、 be dyed color Olive Drab 7. 3.3.1.2 Webbing for type II sling. The webbing shall be dyed O.D. 7 and shall conform to type III, class 4, 2-inch width of MIL-W-530. 3.3.1.3 Webbing for type III sling. The webbing shall be dyed O.D. 7 and shall conform to type III, class 4, 1-inch width of MIL-W-530.
16、4 .:- i. 3 Licensed by Information Handling ServicesMIL-S-16986 3.3.2 Thread, polyester. The polyester thread for the slings shall be dyed O.D. S-1 C.A. 66022 and shall conform to type I, class 1, sub-class A, size FF of V-T-285, The dyed thread shall show fastness to weathering equal ta or better t
17、han the standard sample. When no standard sample is available, the thread shall show “good“ fastness to weathering. 3.3.3 Metal components for type I sling. 3.3.3.1 Loop, slide. The slide loop for the type I sling shall be brass or steel and shall conform to class 1 or class 3, style 2, size 2 inch,
18、 construction A, of MIL-L-3851, 3.3.3.2 Loop, strap. The strap loop for the type I sling shall be brass or steel wire and shall conform to type I or III, style- E, 2-1/16 by 1/4 inch, of MIL-L-11075, 3.3.3.3 Snaphook. The snaphooks for type I sling shall be brass or steel wire and shall conform to d
19、ash No. CWBC3 or SWZE3 of MIL-S-43770/1. 3.3.4 Metal components for type II sling. 3.3.4.1 Loop, slide, brass. The slide loop for the type II sling shall be brass, 2-1/4 inch, conforming to North and Judd Manufacturing Company No. 4883 or equal (see 4.3.1.1). contractor shall submit the item to the
20、contracting officer with supporting data for approval. corif orming to MIL-F-495. Prior to the use of the “or equal“ item, the The slide loop shall have a black chemical finish 3.3.4.2 Snap, swivel, loop eye. The loop eye swivel snaps for the type II: siing shall be cast malleable iron, 2 inch, conf
21、orming to North and Judd Manufacturing Company No. 017 or Covert Manufacturing Company No. 017 or equal (see 4.3.1.1). Prior to the use of the “or equal“ item, the contractor shall submit the item to the contracting officer with supporting data for approval. The finish shall consist of electroplated
22、 zinc followed by a phosphate treatment and bake enameling. The phosphate zinc plate shall be 13 um thick conforming to ASTM B 633. After phosphating and drying, surfaces shall be given a finish of black enamel conforming to type II of TT-E-529, shall level out to a continuous uniform film without o
23、bjectionable orange peel, wrinkles, drops, streaks or area of no film. The coating 3.3.5 Metal components for type III sling. 3.3.5.1 Buckle. The 2-bar tongueless buckle shall conform to type II, style 1, class 1 or class 3, size 1 inch of MIL-B-543. 3.3.5.2 Clip. The end clip shall conform to type
24、I, class 1 or class 2, size 1 inch of MIL-C-496. 3.4 Construction. The construction shall conform in all respects to the drawings listed in section 2 and as specified herein. 4 Licensed by Information Handling ServicesMIL-S-1698G 3.4.1 Stitching, machine. All stitching shall conform to type 301 of F
25、ED-STD-751, with 6 to 8 stitches per inch. 3.4.1.1 Automatic stitching. Any of the stitching operat.ions cited in this document may be performed with an automatic machine provided the requirements for stitch pattern, stitches per inch, size and types of thread are met; and at least three tying, over
26、lapping or backstitches are used to secure the ends of stitching. 3.4.1.2 Type 301 stitching. Ends of all stitching shall be backstitched or backtacked not less than 1/2 inch except where ends are caught in other seams and stitching. loose or tight stitching and the lock will be imbedded in the mate
27、rials sewed. Thread tensions shall be maintained so that there will be no 3.4.1.2.1 Repairs of type 301 stitching, Repairs of type 301 stitching shall be as follows: a. When thread breaks or bobbin run-outs occur during sewing, the- stitching shall be repaired by restarting the stitching a minimum o
28、f 3/4 inch back of the end of stitching. L/ b. Thread breaks or two or more consecutive skipped or runoff stitches noted during inspection of the item (in-process or end item), shall be repaired by overstitching. The stitching shall start a minimum of 3/4 inch in back of the defective area, continue
29、 over the defective area, and continue a minimum of 3/4 inch beyond the defective area onto the existing stitching. the defective stitching without dama ing the materials, and c. Loose or excessively tight stitching shall be repaired by removing restitching in the required manner. - H/ - l/ When mak
30、ing the above repairs, the ends of stitching are not required to be backstitched. 3.4.1.3 Thraad ends. All thread ends shall be trimmed to 1/4 inch maximum length. 3.4.2 Setting of end clip (type III sling). The webbing shall be inserted the full depth of the clip. The clip shall be securely attache
31、d without cutthg the webbing and the webbing shall be flat at the pointof entry. 3.4.3 Wax dipping of webbing end (type III sling). Thecut end of the cotton webbing not enclosed in end clip shall be dipped 1/4 inch full width minimum into a melted mixture of approximately 50 percent beeswax and 50 p
32、ercent paraffin. Temperature of the melted mixture shall be 180 - + 20 F. * 3.4.4 Fusing of ends of polypropylene webbing (type I sling). All ends of polypropylene webbing shall be fused. The apparatus used to fuse the webbing ends shall be capable of providing sufficient heat to provide a smooth ed
33、ge 5 Licensed by Information Handling ServicesI MIL-S-LbSG 4 m SSS9SOb 0372335 4 m MIL-S-1698G with the cut end of the webbing yarns all fused together. webbing ends shall be accomplished prior to being assembled for stitching. Fusing of the 3.5 Marking, 3:5.1 Marking on webbing. The identification
34、marking shall be applied in the location shown on the applicable drawing and shall conform to kype IV, class 5 of DDD-L-20. required, shall be applied in the size characters and the location indicated on the applicable drawing, and shall conform to type IV, class 9 of LiDD-L-20. Fastness of class 9
35、marking shall be as specified for class 5 marking. The marking “US“ for type I or “ST-19-A“ for type II, as 3.5.2 Alternate marking on polypropylene webbing (type I sling), A type VI label of DDD-L-20 may be used in lieu of direct item marking. The label color shall be medium green and the marking s
36、hall conform to the type I sling marking requirements specified in 3.5.1, The label shall not be wider than, or any portion of it allowed to extend beyond the edge of the webbing which it is to be attached to. 3.6 Workmanshie. The finished and assembled sling shall conform to the quality of product
37、established by this document. not exceed the applicable acceptable quality levels. Occurrence of defects shall 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all ins
38、pection requirements 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 performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserve
39、s the right to perform any of the inspections set forth in the document where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Certificate of compliance. When certificates of compliance are submitted, the Government reserves the right to
40、 check test such items to determine the validity of the certification. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. b. First article inspection (see 4.3). Quality confornance inspection (see 4.4). 4.3 First article inspection. When a fi
41、rst article is required (see 6.2), it shall be examined for the defects specified in 4.4.3 and 4.4.4. The , presence of any defect shall be cause for rejection of the first article. 6 e Licensed by Information Handling ServicesMIL-S-1698G 4.4 Quality conformance inspection, Unless otherwise specifie
42、d, sampling for inspection shall be performed in accordance with MIL-STD-105. 4.4.1 Component and material inspection. In accordance with 4.2, components and materials shall be inspected in accordance with all requirements of referenced documents unless otherwise excluded, amended, modified, or qual
43、ified in this document or applicable purchase document. 4.4.1.1 Certification. The contractor shall furnish a certificate of compliance for the requirements specified in3.3.4.1 and 3.3.4.2. 4.4.2 In-process inspection (types I and 11). Inspection shall be performed prior to fabrication of the type I
44、 or II sling to determine compliance with cut length requirement. Any cut length of webbing not within the specified tolerance shall be classified as a defect. be expressed in units of unassembled slings. unassembled sling. The inspection level shall be S-3 and the acceptable quality level (AQL), ex
45、pressed in terms.of defects per hundred units, shall be 2.5. The lot size shall The sample unit shall be one 4.4.3 End item visual examination. The end item shall be examined for the defects listed below. The lot size shall be expressed in units of slings. The sample unit shall be one sling. The ins
46、pection level shall be I and the AQL, expressed in terms of defects per hundred units, shall be 4.0. Webbing Hardware Defect Any hole, cut,- or tear Frayed or scalloped edges; not firmly or Abrasion mark, multiple floats tightly woven . Broken or malformed, failing to serve intended purpose, finish
47、omitted, corroded area, burr, or sharp edge Not as specified Finish . Not as specified Assembly Any hardware component not assembled as specified. End clip (type III) Not properly or securely set Snap hook (tyqes I Defective, fails to function properly and 11) Open seam Any Licensed by Information H
48、andling ServicesExamine NOTE : RunodYf s Seam: and stitch typa Stitch tension Stit:ches per inch Stitching mark in Thread breaks “W“ stitching . Box stitching Stitching ends Components and assembly MIL-S-367G L1 m 777770b 0372337 B m MIL-S-1698G Defect A seam shall be classified as. open when one or
49、 more stitches joining a seam are broken or when two or more continuous skipped or runoff stitches occur. (See open seam) Wrong seam or stitch type Loose, resulting in a loosely exposed top ar bobbin thread; tight, resulting in tightness of geeams One or more stitches less thanminimum specfied One or more stitches in excess of maximum ssgecified Not within specified tolerance- Overstitched less than 3/4 inch (all types) One or more rows of stitching omitted (all types) One or more rows of stitching omitted (type I) Backstitched less than 1/2 inch Any component part or requ
