1、21 April 1989 SUPERSEDING MIL-H-43879 14 March 1974 MILITARY SPECIFICATION HOOD, SLEEPING BAG This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. a sleeping bag. This specification covers one type and size of hood for use in 2, APP
2、LICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. documents are those listed in the issue of the Department of Defense Index of Specifications
3、 and Standards (DODISS) and supplement thereto cited in the solicitation (see 6.2). Unless otherwise specified , the issues of these SPECIFICATIONS FEDERAL A-A-203 - Paper, Kraft, Untreated DDD-L-20 - Label: For Clothing, Equipage, and Tentage, PPP-B-636 - Boxes , Shipping , Fiberboard (General Use)
4、 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 Document Im
5、provement 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - - - - - flIL-
6、H-q3877A 84 M 9797706 0376735 B MIL-H-43879A MILITARY MIL-L-35078 - Loads, Unit: Preparation of Semiperishable Subsistence Items; Clothing, Personal Equipment and Equipage; General Spe ci fi cati on For Green 483 MIL-C-43358 - Cloth, Knitted, Nylon/Acetate, Tricot, Camouflage STAN DA RD S FEDERAL FE
7、D-STD-751 - Stitches, Seams, and Stitchings MILITARY MIL-STD- 105 - Sampling Procedures and Tables for Inspection MIL-STD-129 - Marking for Shipment and Storage MIL-STD- 147 - Palletized Unit Loads MIL-STD-731 - Quality of Wood Members for Containers and Pallets by Attributes (Unless otherwise indic
8、ated, copies of federal and military specifications, standards, and handbooks are available from the Naval Publications and Forms Center, ( ATTN: NPODS) , 5801 Tabor Avenue, Philadelphia, PA 191 20-5099.) 2.1.2 Other Government documents, drawings, and publications. The following other Government do
9、cuments, drawings, and publications form a part of this document to the extent specified herein. are those cited in the solicitation. Unless otherwise specified, the issues DRA WINGS U .S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 2-2-355 - Hood: Sleeping Bag, Assembly 2 -2-35 6 - Ho
10、od: Sleeping Bag, Details (Copies of drawings are available from the U.S. Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5014.) 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein, Unless otherwise specifie
11、d, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). 2 -. a Provided by IHSNot for
12、ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL -H-43879 A 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 St
13、reet, Philadelphia, PA 19103-1187.) THE COLOR ASSOCIATION OF THE UNITED STATES, INC. Standard Color Card of America (Color cards may be available from the Color Association of the United States, Inc., 343 Lexington Avenue, New York, NY 10016-0927. If color cards are not available from the Color Asso
14、ciation, individual color samples may be obtained from the contracting activity or as directed by the contracting activity.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available
15、in or through libraries or other informational services.) 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 takes precedence. Nothing in this document, however, supersedes applicable laws and regulations u
16、nless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified- (see 6.21, a sample shall be subjected to first article inspection (see 6.3) in accordance with 4.3. 3.2 Guide samples. Guide samples, when furnished, are solely for guidance and information (see 6.4). V
17、ariations from the document may appear in the samples, in which case the document shall govern. 3.3 Material. The materials shall be as specified on Drawing 2-2-355. It is encouraged that recycled material be used when practical as long as it meets the requirements of this document. 3.4 Design and c
18、onstruction. The design and construction of the hood shall conform in all respects to Drawings 2-2-355 and 2-2-356 and as specified herein. 3.4.1 Stitching, machine. All stitching shall conform to FED-STD-751, type 301, with 8 to 10 stitches per inch. 3.4.1.1 Type 301 stitching. Ends of type 301 sti
19、tching shall be backstitched or overstitched 1/2 inch minimum except when caught in other stitching or turned under in a hem. Thread tension shall be maintained so that there will be no 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - flIL-H-4387
20、7A 84 7979706 0376737 I 9 MIL -H -4387 9 A loose bobbin or top thread, or excessively tight stitching resulting in puckering of the materials sewn. material sewn. The interlock shall be embedded in the 3.4.1.1.1 Repairs of type 301 stitching. Repairs of type 301 stitching shall be as follows: a. Whe
21、n thread breaks or bobbin run-outs occur during sewing, the stitching shall be repaired by restarting the stitching a minimum of one inch back of the end of the stitching. b. Thread breaks or two or more consecutive skipped or run-off stitches noted during inspection of the item (in-process or end i
22、tem) shall be repaired by overstitching. the defective area and continue a minimum of one inch beyond the defective area on to the existing stitching. Loose or excessively tight stitching shall be repaired by removing the defective stitching without damaging the materials, and restitching in the req
23、uired manner. When damaged thread has been removed, needle holes do not constitute damage to the material. (When making the above repairs in a. and b. above, the ends of the stitching are not required to be backstitched.) The stitching shall start a minimum of one inch in back of 3.4.1.2 Automatic s
24、titching. Automatic stitching machines may be used to perform any of the required stitch patterns provided the requirements of the stitch pattern, stitches per inch, and size and type of thread are met, and at least three or more tying, overlapping, or back stitches are used to secure the ends of th
25、e stitching. 3.4.1.3 Thread ends. All thread ends that are visible on the finished item shall be trimmed to a maximum length of 1/4 inch. 3.4.2 Location marks. Location marks shall not be drilled. 3.4.3 Repairs. Except as otherwise specified herein, repairs such as mends, darns, patches, or splices
26、are not allowed to be made to the hood. 3.4.4 Replacement of defective components. During the spreading, cutting, and manufacturing process, components of the hood having material defects or damages that are classified as defects in 4.4.3 and 4.4.4 shall be removed from production and replaced with
27、nondefective and properly matched components. 3.5 Marking. The identification marking shall be applied on the outside surface of the hood, either side, in the approximate center, and shall conform to type IV, class 5 of DDD-L-20. 3.6 Workmanship. The end item shall conform to the quality of product
28、established by this specification and the occurrence of defects shall not exceed the applicable acceptable quality levels. 4 * Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 MIL-H-93879A 9 9999906 0396718 3 M MIL-H-43879A 4. QUALITY ASSURANCE PROV
29、ISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contraet or purchase order, the
30、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 this specification where such inspections are deemed
31、necessary to ensure supplies and services conform to prescribed requirements. c 4.1.1 Responsibility for compliance. A11 items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality p
32、rogram, The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufactur
33、ing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.1.2 Responsibility for dimensional requirements.
34、Unless otherwise specified in the contract or purchase order, the contractor is responsible fr ensuring that all specified dimensions have been met. examined on the end item, inspection shall be made at any point, or at all points in the manufacturing process necessary to assure compliance with all
35、. dimensional requirements. When dimensions cannot be 4.2 Classification of inspections. The inspection requirements specified O herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). 4.3 First article inspection. When a first article is
36、 required (see 3.1 and 6.21, it shall be examined for the defects specified in 4.4.3 and 4.4.4. 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 4.1
37、, components and materials 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 document. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted witho
38、ut license from IHS-,-,- _ - MIL-H-Y3!77A 4 7977906 0376737 5 W MIL -H-4 38 798 4.4.2 In-process inspection. Inspection of subassemblies shall be made to ascertain that construction details which cannot be examined in the finished product are in accordance with specified requirements. The Government
39、 reserves the right to exclude from consideration for acceptance, any material or service for which in-process inspection has indicated nonconformance. 4.4.3 End item visual examination. The end items shall be examined for the defects listed in table I. The lot size shall be expressed in units of ho
40、ods. The sample unit shall be one hood. The inspection level shall be II and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 2.5 for major defects and 6.5 for total (major and minor combined) defects. TABLE I. End item visual defects Cl ass i fic a tion
41、Examine Defect Major Minor Cloth Fastener tape Open seams NOTE : Seams and stitch tY Pes Stitch tension Stitches per inch Any hole, cut, tear, or abrasion 101 Slubs; broken, loose, or missing yarn 20 1 Any hole, cut, or tear 102 1 O3 Hooks flattened, broken, or missing impai ring f unc t i on Less t
42、han 1/2 inch 1 /2 inch or more A seam shall be classified as open when one or more stitches joining a seam are broken or when two or more consecutive skipped or run-off stitches occur. Wrong seam or stitch type Loose tension, resulting in a loose top or bobbin thread Tight tension, resulting in puck
43、ering of material One to two stitches less than minimum Three or more stitches less than One or more stitches in excess of s peci f i ed minimum specified maximum specified 202 104 105 203 204 205 106 20 6 6 7- - Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
44、om IHS-,-,-MIL -H -4 3879A TABLE I. End item visual defects (contd) a C1 ass i f ica tion Examine Defect Major Minor Stitches per inch (cont d) NOTE: Variation in the number of stitches per inch, caused by the operators speeding up the machine and pulling the material in order to sew over heavy plac
45、es, or in turning corners, shall be classified as follows: (a) Within the minor defect classi- (b) Within the major defect classi- fication - no defect. fication - minor defect. Stitching ends Thread breaks Cleanness Components and ass embl y Not secured as specified (except where ends are held down
46、 by other stitching or turned under in a hem) Thread breaks or two or more consecutive skipped or run-off stitches overstitched less than one inch in each direction beyond the defective stitching area NOTE: Thread breaks or two or more consecutive skipped or run-off stitches not overstitched shall b
47、e classified as open seams. Grease, ink, or oil stains clearly Thread ends not trimmed throughout noticeable as specified Any component or required operation omi tted (unless otherwise classi- f ied herein) 1 O7 Napped sides of panels on outside, in lieu of inside 108 Mend, darn, or patch 109 207 20
48、8 209 210 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-8 211 110 MIL -H-4 387 9 A TABLE I. End item visual defects (contd) Classification Examine Defect Major Minor Components and assembly (contd) Needle chews: -up to 1/8 inch in length -over 1/
49、8 inch in length Ident i fi cat i on Omitted, incorrect, illegible, misplaced, or size of characters not as specified 212 4.4.4 End item dimensional examination. The end items shall be examined for conformance to the dimensions specified on Drawings 2-2-355 and 2-2-356. those dimensions that can be evaluated without damaging or disassembling the end items shall be examined, The lot size shall be expressed in
