1、MIL-B-4416A 4 m 7777706 O40057b 4 S-06-05 MIL-B-44168A 4 May 1988 SUPERSEDING MIL-B-44168 14 May 1985 MILITARY SPECIFICATION G, CARRYING; PROTECTIVE ENSEMBLE, NUCLEAR, BIOLOG1CAL;CHEMICAL (NEC) This specification is approved for use by all Departments and Agencies of the Department of Defense, 1. SC
2、OPE 1.1 Scope. This document covers requirements for the carrying bag (NBC) - fabricated from camouflage nylon duck, webbing and tape, with miscellaneous - hardware. 2. APPLICABLE DOCUMENTS 2.1 Government documents. * 2.1.1 Specifications, standards, and handbooks. The following specifications, stan
3、dards, and handbooks form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicit
4、ation. 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) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this documen
5、t should be addressed to: U.S. Army Natick Research, Development, and Engineering 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. AMSC N/A FSC 8465 DISTRIBUTION STATEMENT A. App
6、roved for public release; distribution is unlimited. /THIS DOCUMENT CONTAINS 13 PAGES, r -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-44168A ML ITARY MIL-L-35078 - Loads, Unit: Preparation of Semiperishable Subsistence Items, Clothing, Pe
7、rsonal Equipment and Equipage; General Specification For STANDARDS FEDERAL . FED-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 o
8、f Wood Members for Containers and Pallets by Attributes (Copies of specifications, standards, and handbooks required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) * 2.1.2 Other Government
9、 documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS U.S. ARMY NATICK RE
10、SEARCH, DEVELOPMENT, AND ENGINEERING CENTER 2-3-439 - Bag, Carrying, Nuclear, Biological, Chemical (NEC) Ensemble 2-3-440 - Body (Copies of drawings, publications, and other Government documents required by contractors in connection with specific acquisition functions should be obtai.ned from the co
11、ntracting activity or as directed by the contracting activity. * 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted shall be those listed in the issue of the D
12、ODISS 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 w 4_ 7 I - I Provided by IHSNot for ResaleNo reproduction or networking permitted
13、without license from IHS-,-,-MIL-B-441bA 4 W 7777906 OY0057 = c 1: MIL-B-44168A AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 3951 - Standard Practice for Commercial Packaging (Copies should be obtained from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 191
14、03-1187.) (Nongovernment standards and other publications are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informational services. 1 * 2.3 Order of precedence. In the event of a confl
15、ict between the text of this specification and the references cited herein, the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Guide sample. S
16、amples of the item, when furnished, are solely for guidance and information to the contractor (see 6.3). Variations from this document may appear in the sample, in which case this document shall govern. 3.2 First article. When specified in the contract or purchase order, a sample shall be subjected
17、to first article inspection (see 4.3, 6.2, and 6.4). 3.3 Materials and components. Materials (see 6.5) and components shall be as specified On Drawing 2-3-439. O 3.4 Construction. The construction shall conform in all respects to the drawings listed in section 2 and as specified herein. 3.4.1 Stitch
18、es,-seams, and stitchings. All stitching, except bartacking, shall conform to- FED-STD-751 as follows: a. For all stitching except bartacking - Stitch type 301, 10 to 12 stitches per inch. 3.4.1.1 Automatic stitching. Automatic stitching machines may be used to perform any of the required stitch pat
19、terns provided the requirements of the stitch pattern, stitches per inch, and size and type of thread are met; and at least three tying, overlapping, or back stitches are used to secure the ends of stitching. 3.4.1.2 Type 301 stitching. Ends of stitching shall be backstitched or overstitched not les
20、s than 1 inch except when caught in other seams and stitching. Thread tensions shall be maintained so that there will be no loose stitching resulting in puckering of the materials sewn. embedded in the materials sewn. The lock shall be 3 Provided by IHSNot for ResaleNo reproduction or networking per
21、mitted without license from IHS-,-,-MIL-B-44LbA 4 m 7777706 0400577 T m MIL-B-44168A 3.4.1.2.1 R-epairs of type 301 stitching. Repairs of type 301 stitching shall be as follows: a; When thread breaks or bobbin run-outs occur during stitching, the stitching shall be repaired by restarting the stitchi
22、ng a minimum of 1 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 item) shall be repaired by overstitching. The stitching shall start a minimum of 1 inch in back of the defective are
23、a (1/2 inch on box, box-x and W-W stitching), and continue a minimum of 1 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 required manner. (Wh
24、en making the above repairs in a. and b. above, the ends of the stitching are not required to be backstitched. ) 3.4.1.3 Bartacks. Unless otherwise specified, bartacks shall be as specified on the applicable drawing and as follows: a. Length - 3/4 inch (2 1/16 inch) b. Width - 1/8 inch (2 1/32 inch)
25、 C. Stitches per bartack - 42 Bartacks shall be free of tread breaks and loose stitching. 3.4.1.4 Thread ends. All thread ends that are visible on the finished item shall be trimmed to a length of not more than l/4 inch. 3.4.2 Fusing of ends of nylon tape and webbing. All exposed raw ends of nylon t
26、ape and webbing shall be fused. The apparatus used to fuse the tape ends shall be capable of providing sufficient heat to provide a smooth edge with the cut ends of the tape yarns all fused together. Fusing of the webbing and tape ends shall be accomplished prior to being assembled for stitching. 3.
27、4.3 Setting of eyelets. Holes shall be prepunched to receive the eyelets. barrel so that the barrel must be forced through the hole. The holes shall be smaller than the outside diameter of the eyelet 3.4.3.1 Eyelets, with washer, brass. The brass eyelets with washer shall be securely clinched in a m
28、anner that will prevent detachment from or cutting of the surrounding material. The eyelets shall be clinched without splitting. 3.5 Marking. The identification marking shall be applied in the location shown on the applicable drawing and shall conform to type IV, class 5 of DDD-L-20, 4 Provided by I
29、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-44L68A 84 m 7797706 000600 2 c f MIL-B-44168A 3.5.1 Location marks. Location marks shall not be drilled. Printed markings for component location shall not be more than 1/32 inch wide. 3.6 Repairs. Repairs such
30、 as mends, darns, patches, or splices are not permitted on the bag. 3.7 Replacement of defective components. During the spreading, cutting, and manufacturing process, components having material defects or damages that are classified as defects in 4.4.3, shall be removed from production and replaced
31、with nondefective and properly matched components. 3.8 Workmanship. The finished and assembled bag shall conform to the quality of product established by this document and the occurrence of defects shall not exceed the applicable acceptable quality levels. 4. QUALITY ASSURANCE PROVISIONS 4.1 Respons
32、ibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for
33、 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 document where such inspections are deemed necessary to assure supplies and services conform to presoribed req
34、uirements. Except as otherwise 4.1.1 Responsibility 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 requirement in th
35、e document shall not relieve the contractor 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 indic
36、ated or actual, nor does it commit the 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 dimen
37、sions cannot be 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 dimensional requirements. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a
38、. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). 5 /- A Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-B-44LbA 4 W 7777906 04OObOL 4 . MIL-B-44168A I 4.3 First article inspection. When a first article is requi
39、red (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. 4.4 Quality conformance inspection. Unless otherwise specified, sampling for inspection shall be performed in accordance with MIL-STD-105. 4
40、.4.1 Component and material inspection. In accordance with 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 in
41、spection. Inspection shall be made at any point or during any phase of the manufacturing process to determine whether cut lengths, cut parts, markings for location of components, and location of assembled component parts are in accordance with specified requirements, and that the prepunched holes fo
42、r receiving eyelets are as specified in 3.4.3. Whenever nonconformance is noted, corrections shall be made to the parts affected and lot in process. Parts which cannot be corrected shall be removed from production. 3 4.4.3 End item visual examination. The end item shall be examined for the defects l
43、isted in table I. The lot size shall be expressed in units of bags. The sample unit shall be one bag. 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 10.0 for total (major and minor combined
44、defects . TABLE I. End item visual defects , Examine Defect Classification I Fabric .Major Mlnor Hole, cut, tear, smash, broken or missing yarn, or open place clearly visible at normal inspection distance (approximately 3 feet) X Tape and webbing Not firmly and tightly woven; edges frayed or scallop
45、ed X -Multiple floats X Any cut, hole, bear, or smash X Abrasion mark, slub, broken end or pick x .Ends .not fused as specified (where requlred 1 X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 C a l MIL-B-44168A TABLE I. End item visual defects
46、- Continued Examine Defect Classification Hardware (general) Eyelet Open seam NOTE : Raw edge (on edge required to be finished) NOTE : Run (see open seam) Seam and stitch tY Pe Bar tacks Major Minor - Broken or malformed failing to serve intended purpose, corroded area, Not assembled as specified (u
47、nless burr, or sharp edge X otherwise classified herein) X Not specified type, size, or style X Finish omitted, partially omitted, or not as specified on brass X Insecurely clinched or clinched excessively tight, cutting fabric X More than 1/2 inch 1/2 inch or less X A seam shall be classified as op
48、en when one or more stitches joining a seam are broken or when two or more consecutive skipped or run-off stitches occur. More than 1/2 inch in length when securely caught in stitching X Raw edge not securely caught in stitching shall be classified as an open seam. Wrong seam or stitch type X One or
49、 more bartacks omitted X Any bartack not as specified or not Loose stitching, incomplete, or in specified location broken 7 P . X X X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-q41bA q m 7777706 0400603 MIL-B-44168A TABLE I. End item visual defects - Continued Examine Defect Clas si f icat ion Stitch tension Stitches per inch NOTE : Th
