1、c -Lt-CBs) MIL-S-43489D i3 October 1987 SUPERSEDING MIL-S-43489C 31 July 1974 MILITARY SPECIFICATION SLING, BAG AND CASE CARRYING: ST-35 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This document covers one type of cotton we
2、bbing sling with metal hardware components. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Documents. The following documents form a part of this document to the extent specified herein, Unless otherwise specified, the-issues of these documents shall be those listed in the issue of the Depa
3、rtment of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. SPECIFICATIONS FEDERAL A-A-203 - Paper, Kraft, Untreated V-T-285 - Thread, Polyester DDD-L-20 - Label: For Clothing, Equipage, and Tentage PPP-B-636 - Boxes, Shipping, Fiberboard (Gene
4、ral Use) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5014 by using the self-addressed Standardization Documen
5、t Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8465 DISTRIBUTION STATEMENT A, Approved for public release; distribution is unlimited. . THIS DOCUMENT CONTAINS /-/ PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted witho
6、ut license from IHS-,-,-MIL-S-43487D 4 a 7777706 03740bb 7 a MIL-S-43489D MIL I TARY MIL-W-530 - Webbing, Textile in Colors Cotton, General Purpose, Natural or MIL-B-543 - Buckles, Tongueless and Web Strap MIL-R-2327 - Rings, Connecting, Round MIL-L-35078 - Loads, Unit: Preparation of Semiperishable
7、 Subsistence Items; Clothing, Personal Equipment and Equipage; General Specification For Natural or in Colors MIL-T-43566 - Tape, Textile, Cotton or Polyester, General Purpose, MIL-S-43770/9 - Snap Hooks, Cast Body, Fixed Loop Eye, Trigger Closure MIL-W-44049 STANDARDS FEDERAL FED-STD-751 MIL I TARY
8、 MIL-STD-105 MIL-STD-129 MIL-STD-147 MIL-STD-731 - Webbing, Textile and Tape, Textile, Polypropylene, General Purpose, Natural or in Colors - Stitches, Seams, and Stitchings - Sampling Procedures and Tables for Inspection - Marking for Shipment and Storage - Palletized Unit Loads - Quality of Wood M
9、embers for Containers and Pallets by ,Attributes DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 2-3-204 - Sling, Bag and Case, Carrying. ST-35; Assembly (Copies of documents required by contractors in connection with specific acquisition functions should be obtained from the
10、 contracting activity or as directed by the contracting activity.) 9 2.2 Other publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the docments which are DOD adopted shall be those listed in the issue of the DOD
11、ISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issues of the nongovernment documents which are current on the date of the solicitation. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
12、 from IHS-,-,-MIL-S-43489D AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 3951 - Standard Practice for Commercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) (Technical society and technical
13、association documents are generally available for reference from libraries, and using Federal agencies.) They are also distributed among technical groups 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 s
14、hall take precedence. Nothing in this document, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Samples. 3.1.1 Guide samples, Samples of the end item, when furnished, are solely for guidance and information to the manufactur
15、er (see 6.3). document may appear in the sample, in which case the document shall govern. Variation from this J: 3.1.2 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3, 6.2, and 6.4). 3.2 Materials (see 6.5). 3.2.1 Webb
16、ing. f: 3.2.1.1 Webbing, 2-inch. The 2-inch webbing shall be cotton conforming to type II, class 4 of MIL-W-530, or as an alternate, the webbing shall be poiypropylene conforming to type II, class 4 of MIL-W-44049. * 3.2.1.2 Webbing, 1-inch, The 1-inch webbing shall be cotton conforming to type III,
17、 class 4 of MIL-W-530, or as an alternate, the webbing shall be polypropylene conforming to type III, class 4 of MIL-W-44049. 3.2.1.3 Webbing, 3/4-inch. The 3/4-inch webbing shall be cotton conforming to type IIa, class 4 of MIL-W-530, or as an alternate, the webbing shall be polypropylene conformin
18、g to type Ia, class 4 of MIL-W-44049. - 3.2.1.4 Color. The color of the webbing shall be Olive Drab 7. 3.2.2 Tape, cotton. The cotton tape shall be type I, class 4, 1 inch The color of the tape shall be Olive Drab 7. conforming to MIL-T-43566. 3 Provided by IHSNot for ResaleNo reproduction or networ
19、king permitted without license from IHS-,-,-MIL-S-43489D 3.2.3 Thread, polyester. The polyester thread shall be type I, class 1, of sub-class A, size FF conforming to V-T-285. Thread shall be dyed OD S-1 C.A. 66022 and shall show fastness to weathering equal to or better- than the standard sample. W
20、hen no standard sample is available, the thread shall show good fastness to weathering. 3.2.4 Buckle. The steel buckles shall be tongueless, one-bar, type I, style 2, class 3, construction A, sizes 3/4 inch and 1 inch conforming to MIL-B-543, 3.2.5 Snap hook. The snap hook shall be cast malleable ir
21、on, 3/4 inch conforming to MIL-S-43770/9. 3.2.6 Ring, The ring shall be steel wire, class 2, size 7 conforming to MIL-R-2327. 3.3 Construction. The construction of the sling shall conform in all respects to the drawing listed in section 2 and shall be as specified herein. 3.3.1 Stitches, seams, and
22、stitchings. All stitches, seams, and stitchings shall be performed using stitch type 301 of FED-STD-751, with 6 to 8 stitches per inch and 1/8 inch stitching margin. 3.3.1.1 Automatic stitching. Any of the stitching operations cited in this document may be performed with an automatic machine provide
23、d the requirements for stitch pattern, stitches per inch, and size and types of thread are met; and at least three tying, overlapping or backstitches are used to secure the ends of stitching. 3.3.1.2 Type 301 stitching. Ends of all stitching shall be backstitched or overstitched 1/2 inch minimum exc
24、ept when caught in other seams or stitching, Thread tensions shall be maintained so that there will be no loose stitching resulting in loose bobbin or top thread, or excessively tight stitching resulting in puckering of the materials sewn. The lock shall be embedded in the materials sewn. 3.3.1.3 Re
25、pairs 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 of 1/2 inch back of the end of the stitching, L/ b. Thread breaks or two or more consecu
26、tive skipped or runoff stitches The stitching shall start a minimum of 1/2 inch in back of noted during inspection of the item (in-process or end item) shall be repaired by overstitching. the defective area, continue over the defective area, and continue a minimum of 1/2 inch beyond the defective ar
27、ea onto the existing stitching. Loose or excessively tight stitching shall be repaired by removing the defective stitching without damaging the materials, and restitching in the required manner. i-/ 4 a 1 e Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
28、-,-,-3.5 WoriunanshiE. The finished sling with assembled components as required shall conform to the quality of product established by this document and the occurrence of defects shall not exceed the applicable acceptable quality levels (AQL) 4. QUALITY ASSURANCE PROVISIONS MIL-S-43489D - i/ When ma
29、king the above repairs, the ends of the stitching are not required to be backstitched. 3.3.1.4 Thread ends. All thread ends shall be trimmed to 1/4 inch maximum length. 3.4 Marking. The identification marking shall be applied in the location The shown on the drawing and shall conform to type IV, cla
30、ss 5 of DDD-L-20. marking “ST-35“ shall be applied in the size characters and in the location indicated on the drawing and shall conform to type IV, class 9 of DDD-L-20. Fastness for the class 9 marking shall be as specified for class 5 marking. 4.1 Responsibility for inspection. Unless otherwise sp
31、ecified in the contract or purchase order, the contractor is responsible for the performance of all inspection 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
32、 inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this document where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 2: 4.1.1 Res
33、ponsibility for compliance. All items must meet all requirements of sections 3 and 5. The inspection set forth in this document shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the document shall not relieve the contra
34、ctor of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the
35、Government to acceptance of defective material, * 4.1.2 Responsibility for dimensional requirements. Unless otherwise specified in the contract or purchase order, the contractor is responsible for assuring that all specified dimensions have been met. When dimensions cannot be examined on the end ite
36、m, inspection shall be made at any point, or at all points in the manufacturing process necessary to assure compliance with all dimensional requirements. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-43L187D L1 7779706 037L1070 O MIL-S-4348
37、9D 4.2 Classification of inspection. 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 6.3), it shall be examined for the defe
38、cts specified in 4.4.3. The presence of any defect shall be cause for rejection of the first article. 4.4 Quality conformance inspection. Unless otherwise specified, sampling for inspection shall be performed in accordance with MIL-STD-105. 4.4.1 Component and material inspection. In accordance with
39、 4.1, components and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified or qualified in this document or applicable purchase document. 4.4.2 In-process inspection. Inspection shall be made at any point or during a
40、ny phase of the manufacturing process to determine whether cut lengths for components listed below and construction details are in accordance with specified requirements. When ever non-conformance is noted, corrections shall be made to the items affected and the process. shall be removed from produc
41、tion. Items which cannot be corrected Component Drawing Item number 5; 3/4 inch width strap 2-3-204 Item number 3; 1 inch width strap 2-3-204 4.4.3 End item visual examination. The end itemshall be examined for the defects listed below, The lot size sha-11 be expressed in units of slings, The sample
42、 unit shall be one sling. acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 6.5. The inspection level shall be II and the Examine De ects Webbing and tape Any hole, cut, tear, smash, or club. Not firmly and tightly woven, edges frayed or Multiple floats or abr
43、asion mark. Broken or missing end or pick. Spliced, i.e., not one continuous piece. scalloped. Hardware Broken or malformed, failing to serve intended purpose, finish partly or totally omitted, corroded area, burr, or sharp edge. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted
44、 without license from IHS-,-,-MIL-S-43489D Examine Defect Hardware (continued) Not construction, type, or style specified. Not formed as specified, Spring portion of snap hook loose or defective causing spring to jam. Open seams Any. NOTE: A seam shall be classified as open when one or more stitches
45、 joining a seam are broken or when two or more consecutive skipped or runoff stitches occur. Seam and stitch type Wrong seam or stitch type. Stitching Stitches per inch Stitching margin Stitching ends Thread breaks Components and ass emb 1 y Ends Marking Cleanness Thread ends Incomplete or any row m
46、issing. Less than minimum specified. More than maximum specified. Not as specified. Backstitched less than 1/2 inch. Backstitched less than 1/2 inch. NOTE: Thread break not backstitched shall be classified as an open seam. Any component part or required operation omitted Mend or darn. Any component
47、reversed, i.e., not assembled to body as Needle chews. (unless otherwise classified herein). indicated on drawing. Not finished as specified. Abutted ends of binding more than 1/16 inch apart, Omitted, incorrect, illegible, misplaced, or size characters not as specified. Grease or oil stains clearly
48、 noticeable. Not trimmed to 1/4 inch maximum length. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-Lt34SD 4 W 777770b 037Y072 4 MIL-S-43489D 4.4.4 Packaging examination. The fully packaged end items shall be examined for the defects listed
49、below. The lot size shall be expressed in units of shipping containers, packaged. The inspection level shall be S-2 and the AQL, expressed in terms of defects per hundred units, shall be 2.5. The sample unit shall be one shipping container fully Examine Defect Marking (exterior Omitted; incorrect; illegible; of improper size, and interior) location, sequence, or method of application. Ma ter ia 1 s Any component missing, damaged, or not as
