1、9 MIL-T-44222A 83 m 9999906 0468905 I W I- a a, - MIL-T-44222A 1 March 1991 SUPERSEDING MIL-T-44222 3 April 1986 MILITARY SPEC IF ICAT ION TENT LINER SECTIONS; INSULATED (TEMPER) This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE AND CLASSIF
2、ICATION 1.1 Scope. This specification covers insulated tent liner sections and covers for use with the tent, expandable, modular, personnel. 1.2 Classification. Tent liner sections shall be of the following types as specified (see 6.2). Type I - End section Type II - Intermediate section Type III -
3、Intermediate door section 2. APPLICABLE 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. Unless otherwise specified, the issues of these documents ar
4、e those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be used in improving this document should
5、be addressed to: U.S. Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5017 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 8340 DISTRIBUTION STATEMENT A. Approved for public release
6、; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-44222A SPE C IF I CAT IONS FEDERAL DDD-L-20 PPP-B-601 PPP-B-636 STANDARDS FEDERAL FED-STD-751 MIL I TARY MIL-STD-105 MIL-STD-129 MIL-STD-147 MIL-STD-731 ( Un 1 e s s o
7、 t ii e rw i s e - Label: for Clothing, Equipage, and Tentage, - Boxes, Wood, Cleated-Plywood - Boxes, Shipping, Fiberboard (General Use) - Stitches, Seams and Stitchings - Sampling Procedures and Tables for Inspection - Marking for Shipment and Storage - Palletized Unit Loads - Quality of Wood Memb
8、ers for Containers and Pallets by Attributes stand Desk, indicated, copies of federal and military specifications, .ards, and handbooks are available from the Standardization Documents Order Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawings, an
9、d publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 5 -4 -
10、33 5 9 5-4 -4 12 7 5-4-4128 5-4-4129 5 -4 -4 1 3 O 5-4-4131 5-4-4132 5-4-4133 Tent Cover End Section Liner (Insulated) End Liner (Insulated) Door Section Liner (Insulated) Intermediate Door Section Liner (Insulated) Intermediate Section Liner (Insulated) Flap Assemblies Vent Sleeve 2 Provided by IHS
11、Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-P MIL-T-44222A 83 = 9999906 0468907 5 d d MIL-T-44222A 5 -4 -41 34 - Lanyard Assemblies 5 -4 -4 1 3 5 - Toggle Lanyard 5-4 -4 1 3 6 - Light Support Assembly 5-4 -41 3 7 - Hook, Chain, “S“ (Copies of drawings are avail
12、able from the U.S. Army Natick Research, Development, and Engineering Center, ATTN: STRNC-UX, Natick, MA 01760-5017.) PUBLICATION U.S. DEPARTMENT OF THE ARMY FIELD MANUAL FM 10-16 - General Repair of Tents, Canvas and Webbing (Copies of documents required by contractors in connection with specific a
13、cquisition functions may be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD
14、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). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 3951 - Standard Practic
15、e for Commercial Packaging (Copies may be obtained from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These docum
16、ents also may be available 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 applic
17、able laws and regulations unless 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 6.31, in accordance with 4.3. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted with
18、out license from IHS-,-,- MIL-T-44222A 83 W 9999906 0468908 7 MIL-T-442 2 2 A 3.2 Materials and components. Materials and components shall be as specified on the applicable drawings. Materials not definetely specified shall be of the quality normally used by- the contractor provided that the complet
19、ed item complies with all the provisions of this specification. It is encouraged that recycled material be used when practical as long as it meets the requirements of this specification. 3.3. Construction. Construction shall conform to the drawings listed in section 2 and be as specified herein. 3.3
20、.1 Stitching machine. 3.3.1.1 Types of stitching. All stitch types shall conform to FED-STD-751 as follows: For all stitching except binding - Type 301, 5 to 7 stitches per inch For binding or stitching - Type 401, 5 to 7 stitches per inch appear on the outside of cover or pile fastener tape indicat
21、ed by “Z“ on drawings - Chain portion of stitching shall not 3.3.1.2 Thread breaks. Thread breaks in stitching shall be overstitched not less than 1 inch at each break on stitch type 301 and not less than 1-1/2 inches at each break on type 401 stitching. Thread breaks on type 401 stitching may be ov
22、erstitched with stitch type 301. Thread breaks noted during inspection shall be repaired by overstitching the existing stitching starting from a distance of 1 inch before the break, across the defective area, to a distance of 1 inch beyond the break. The ends of repair stitching are not required to
23、be backstitched. 3.3.1.3 Stitching ends. Stitching at the ends shall be overstitched not less than 1 inch on stitch type 301 except where ends are turned under in a hem, held down by other stitching. Where 301 stitching is performed automatically on stitch patterns such as box, box with cross-stitch
24、, “W“ stitching, or straight line tacking, at least three tying, overlapping, or back stitches shall be used to secure the ends of stitching. 3.3.1.4 Skipped stitches. Two or more skipped stitches occurring consecutively in stitch type 301 shall be overstitched not less than 1 inch on each side of t
25、he skip. Any skipped stitch on stitch type 401 shall be overstitched not less than 1-1/2 inches on each side of the skip. stitches on type 401 stitching may be overstitched with stitch type 301. Skipped 3.3.1.5 Lubrication of thread. The addition of any lubricant to the polyester thread prior to or
26、during the sewing operation is prohibited (see 4.4.2). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4. G MIL-T-44222A 83 = 999990b 0468909 9 MIL-T-442 22A 3.3.2 Setting of grommets. Holes punched to receive grommets shall be smaller than the out
27、side diameter of the grommet barrels so that the barrel must be forced through the hole. cutting the material (see 4.4.2). The grommets shall be securely clinched without 3.3.3 Splicing of ground cloth. If required, the ground cloth shall be spliced as shown on Drawing 5-4-4128. 3.3.4 Repairs. All n
28、ecessary repairs shall be effected in accordance with the Department of the Army Field Manual FM 10-16, except that hand-sewn patches other than as specified herein, will not be acceptable. 3.4. Marking. All markings and labels shall conform to DDD-L-20. 3.4.1 Indentification label. Identification l
29、abels shall conform to type VI, class 6 and shall be 3-1/2 inches by 5-112 inches minimum with a blank space of at least 1-114 inches provided at the bottom of the label for the Department of Defense inspectors stamp. Identification labels shall be stitched to the liner in the location shown on the
30、drawing. 3.4.2 Special markings. The letters “US“ on the liner and nomenclature on the cover shall conform to type IV, class 9 in the size characters and in the locations shown on the drawings. Class 9 markings shall be clearly legible after subjection to accelerated weathering. 3.5 Workmanship. Clo
31、th components shall be clean and free of holes, cuts, tears, or cloth defects such as multiple floats or broken or missing yarns. Webbing and tape shall not have frayed or scalloped edges and rope components O shall be free of cuts OK breaks. Thread tension shall be maintained with seams properly se
32、wed so that no runoffs, twists, pleats, or open seams shall result. All thread ends shall be trimmed to 1/2 inch or less. Metal components shall be free of burrs, sharp edges, and corroded areas and shall not be broken or malformed. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.
33、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 contract or purchase order, the contractor may use his own or any other f
34、acilities 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 necessary to ensure supplies and service
35、s conform to prescribed requirements. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-44222A 83 W 9999906 0468910 5 = MIL-T-44 2 2 2 A 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspec
36、tion set forth in this specification shall become a part of the contractors overall inspection system or quality program. 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
37、Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, n
38、or does it commit the Government to accept defective material. 4.1.2 Responsibility for dimensional requirements. Unless otherwise specified in the contract or purchase order, the contractor is responsible for ensuring that all specified dimensions have been met. examined on the end item, inspection
39、 shall be made at any point, or at all points in the manufacturing process necessary to ensure compliance with all dimensional requirements. When dimensions cannot be 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspectio
40、n (see 4.3) b. Quality conformance inspection (see 4.4) 4.3 First article inspection. When a first article is required (see 3.1 and 6.2), it shall be examined for the defects specified in 4.4.3 and 4.4.4. Any nonconformance shall be cause for rejection of the first article. 4.4 Quality conformance i
41、nspection. 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, components and materials shall be inspected in accordance with all the requirements of referenced documents unless otherw
42、ise excluded, amended, modified, or qualified in this specification or applicable purchase document. 4.4.2 In-process inspection. Inspections shall be made at any point or during any phase of the manufacturing operation to determine that the following are as specified: a. There shall be no lubricati
43、on of polyester thread prior to or or during sewing operations for compliance with 3.3.1.5. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-44222A 83 W 9999906 0468933 7 W MIL-T-44222A Whenever nonconformance is noted, correction shall be ma
44、de to the items affected and to the process. production. Items which cannot be corrected shall be removed from O b. Holes punched to receive grommets are in compliance with 3.3.2. 4.4.3 End item visual examination. The end itens shall be examined for the defects listed in table I. The lot size shall
45、 be expressed in units of tent liner sections and covers. The sample unit shall be one complete tent liner section and cover. The inspection level shall be II and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 10 for major defects, 25 for major and mino
46、r A combined defects, and 100 for total (major, minor A and minor B combined) defects. TABLE I. End item visual defects Classification Examine Defect Major Minor AB Cloth, quilted Any hole, cut, tear, or open place: - a. On the outside surface 101 b. On the inside surface: - up to 1/4 inch in any di
47、rection 201 ,- more than 1/4 in any direction 102 Loose yarn, snagged yarn, misweave, slub, float, missing or broken yarn, or woven-in waste: - up to 1/4 inch - more than 1/4 inch of 3 feet or more drawing O Knot, clearly noticeable at a distance Stitch pattern not as specified on Color not as speci
48、fied Abrasion resulting in a weak .place Broken or missing yarn, multiple or any weak place floats, clearly visible at normal inspection distance of approximately 3 feet Cloth, coated, cover 301 202 302 203 103 104 204 Cut, tear, or hole (including exposed drill hole) greater than 1/8 inch in length
49、 or diameter 105 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - MIL-T-44222A 83 9999906 0468932 9 MIL-T-442 22A TABLE I. End item visual defects (contd) Classification Examine Defect Major Minor AB - Cloth, coated, Cut, tear, or hole (including exposed or diameter cover (contd) drill hole) 1/8 inch or less in length Webbing and tape Any hole, cut, tear, or smash Abrasion m
