1、MIL-T-4 183 OE 30 September 1986 SUPERSEDING MIL-T-4 183 OD 26 November 1976 MILITARY SPECIFICATION TE“, VEHICLE MAINTENANCE, COMPLETE WITH A-FRAME This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This document covers a cotton d
2、uck tent with a lightweight metal A-frame support assembly. 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
3、 issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation SPECIFICATIONS FEDERAL T-T-871 - Twine, Cotton, Wrapping T-T-911 - Twine, Fibrous, Jute V-T-285 - Thread, Polyester Beneficial comments (recommendations, additions, de
4、letions) 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 Improvement Proposal (DD Form 1426) appearing at the end o
5、f this document or by letter. -_ -_ . - AMSC N/A FSC 8340 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. THIS DOCUMENT CONTAINS 27 PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-4L30E 3 W 9797906 03935
6、5 4 W QQ-A-2 0018 QQ-A-22518 QQ-A-2 501 11 QQ-A-596 QQ-A-601 QQ-W-423 IT-E - 52 9 TT-P-5 95 TT-P - 17 5 7 W-T-7 001 6 ccc-c -42 9 CCC -C -4 6 7 DDD-L-20 PPP -B -60 1 PPP-B-621 MILITARY MIL-C-4 96 MIL -W -53 O MIL -B - 5 4 3 MIL-R-1670 MIL-L-1709 MIL-S-173 4 MIL-C-2399 MIL-R-3390 MIL-C-5 541 MIL -P-
7、1 O9 7 1 MIL-G-164 91 MIL-T-40625 MIL-T -43 5 6 6 MIL-C-43627 MIL-W-44049 MIL-T-4 183 OE - Aluminum Alloy 6061, Bar, Rod, Shapes, Tube and - Aluminum Alloy 6061, Bar, Rod, Wire, and Special - Aluminum Alloy 6061, Plate and Sheet - Aluminum Alloy Permanent and Semipermanent Mold - Aluminum Alloy Sand
8、 Castings - Wire, Steel, Corrosion-Resisting - Enamel, Alkyd, Semigloss - Preservative Coating, Canvas - Primer Coating, Zinc Chromate, Low-Moisture- - Tube, Aluminum Alloy, Drawn, Seamless, 6061 - Cloth, Osnaburg, Cotton - Cloth, Burlap, Jute (or Kenaf) - Label: for Clothing, Equipage, and Tentage
9、- Boxes, Wood, Cleated-Plywood - Boxes, Wood, Nailed and Lock-Corner Wire, Extruded Shapes: Rolled, Drawn, or Cold Finished Castings Sensitivity (General Use) - Clips, End, Strap - Webbing, Textile, Cotton, General Purpose, - Buckles, Tongueless and Web Strap - Rope, Tent-Lay - Lines, Tent - Slips,
10、Tent Line - Cement, Liquid, Tent Patching - Rings, Dee - Chemical Conversion Coatings on Aluminum and - Pins, Spring, Tubular (Coiled and Slotted) - Grommet, Metallic - Tubing, Bias Sewn (Burlap or Onasburg), Cloth - Tape, Textile, Cotton, General Purpose, Natural - Cloth, Duck, Cotton, Plied Yarns,
11、 Fire, Water, Natural or in Colors Aluminum Alloys or in Colors Weather and Mildew Resistant Treated, Lightdry Finish Polypropylene, General Purpose, Natural or in Colors - Webbing, Textile and Tape, Textile, 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
12、 IHS-,-,-STANDARDS MIL-T-LI3830E 83 9799706 0373557 b MIL -T -4 183 OE FEDERAL FED-STD-7 51 - Stitches, Seams, and Stitchings MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection MIL-STD-129 - Marking for Shipment and Storage by Attributes DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPM
13、ENT, AND ENGINEERING CENTER 5 -4-3 6 9 - Tent Cover, for General Purpose Use 5-4-81 4 - Tent, Vehicle Maintenance, Complete With A-Frame; Assembly and Details 5 -4-8 1 5 - Erection Instructions 5-4-816 - Frame Assembly 5-4-817 - Frame Details Sheet No. 1 5-4-818 - Frame Details Sheet No. 2 5-4-819 -
14、 Erection Instructions, Frame 5-4-820 - Details and Sections + at least three tying, overlapping, or back stitches shall be used to secure the ends of stitching. 3.3.1.3 Skipped stitches. Two or more consecutively skipped stitches occurring in type 301 stitching shall be overstitched not less than 1
15、 inch. Any skipped stitch in type 401 stitching shall be overstitched not less than 1 1/2 inches. type 301 stitching. repaired as specified for thread breaks (see 3.3.1.1). Skipped stitches in 401 stitching may be overstitched with Skipped stitches noted during inspection shall be 3.3.1.4 Thread lub
16、ricant. The addition of any lubricant to the polyester thread prior to or during the sewing operation is prohibited. n 303.1.5 Stitching margins. Unless otherwise specified, all stitching margins shall be 1/8 however, not more than three pieces per reinforcement shall be permitted and no spliced pie
17、ce shall be less than 24 inches in length. 3.3.7 Welding. The surfaces of parts to be welded shall be free from oxide, scale, paint, grease, and other foreign matter. Welds shall be continuous, sound, smooth, and -free from burn through area, porosity, cracks, incomplete fusion, and deformation of m
18、aterial. The deposited weld metal shall be thoroughly fused with the base metal along all surfaces and edges of the union. 3.3.8 Castings. Sand or mold castings, if used as an alternate method of construction for items so specified on Drawing 5-4-818, shall be sound and free from burrs, porosity, or
19、 cracks, and shall be as specified in 3.2.12.5. 3.3.9 Extrusions. Extrusions, if used as an alternate method of construction for items so specified on Drawing 5-4-818, shall be as specified in 3.2.12.6. 3.3.10 Finish of frame. Exterior surfaces of aluminum frame components shall be treated in accord
20、ance with class 1A of MIL-C-5541, except that corrosion-resisting properties of unpainted surfaces need not apply. of other metallic components shall be thoroughly cleaned. Exterior surfaces, including chains, eyes of eye bolts, and toggles, shall be coated so as to produce good coverage with primer
21、 specified in 3.2.15. the primed surfaces shall be coated with enamel specified in 3.2.16. The enamel finish shall be continuous and uniform, without objectionable runs, drops, streaks, area of thin film or no film, and shall not be blistered, Surfaces When thoroughly dry, 8 Provided by IHSNot for R
22、esaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-4L30E 3 m 999970b 03915b5 L m e MIL-T-41830E flaky, or peeled. has been damaged during erection for examination. When touch up painting is performed, adequate ventilation controls and appropriate personal protective equi
23、pment should be provided. The contractor shall touch up any areas where the finish 3.4 Marking. All labels and markings, except frame identification marking, shall conform to DDD-L-20. * 3.4.1 Nomenclature. The letters “US“ on the tent and cover and the nomenclature on the cover shall conform to typ
24、e 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. . 3.4.2 Identification labels. The identification labels shall be stitched to the tent and cover in the location shown on the drawing
25、s and shall conform to type VI, class 6. The size of the labels shall be 3 1/2 inches by 5 1/2 inches minimum with a blank space of at least 1 1/4 inches provided on the bottom of the label for the Department of Defense inspectors stamp. 3.4.3 Erection instruction labels. Labels of erection instruct
26、ions for the tent and frame shall conform to type VI, class 7 and shall be stitched to the tent and cover in the locations shown on the drawings. The labels shall be proportionate copies of Drawings 5-4-815 and 5-4-819 as reproduced from glossary prints of these drawings furnished by the contracting
27、 officer. The size of the labels, borderline to borderline, shall be 10 iIuches 1: 1/4 inch in the longer dimension, with a minimum 1/2 inch margin outside of the borderline on all sides. 3.4.4 Frame identification marking. One end cap on the outer face of the frame shall be permanently and distinct
28、ly indented or etched, prior to finishing, with the letters “US“ in characters 1/4 inch high, with the name of the manufacturer or brand or mark of such known characters as to make the source of manufacture easily determined and with the number and year of the contract in characters 1/8 inch high. M
29、arking for molded parts (alternate construction) may be incorporated in the mold. after enameling. The marking shall be legible No other brands or marking shall be shown on the frame. 3.5 Workmanship. Cloth components shall be clean and free from holes, cuts, tears, or cloth defects such as multiple
30、 floats or broken or missing yarns. components shall be free of cuts or breaks. Thread tension shall be maintained so that there will be no loose stitching, and seam allowances shall be maintained so that no run-Offs, twists, pleats, or open seams shall result. All thread ends shall be trimmed to 1/
31、2 inch or less. Care shall be taken in sewing to see that no needle chews occur. Metal components shall be free from burrs, sharp edges, or corroded areas and shall not be broken or malformed. Webbing and tape shall not have frayed or scalloped edges, and rope I 9 Provided by IHSNot for ResaleNo rep
32、roduction or networking permitted without license from IHS-,-,-MIL-T-Ll1d30E 3 7797706 03715bb 3 MIL-T-4 1830E 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the Except as otherwise contract or purchase order, the contractor is responsible for the pe
33、rformance 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 the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserve
34、s 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. Ir z * 4.1.1 Responsibility for compliance. Al1 items must meet all requirements of sections 3 and 5. The inspectio
35、n 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 the document shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for
36、 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 Government to acceptance of defective material. 4.1.2 Certificates of compliance. When certificates
37、of compliance are submitted, the Government reserves the right to inspect such items to determine the validity of the certification. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. b. First article inspection (see 4.3). Quality conformanc
38、e inspection (see 4.4). 4.3 First article inspection. When a first article is required (see 6.2), it shall be examined for the defects specified in 4.4.3 through 4.4.7 and tested as specified in 4.5.1. any test shall be cause for rejection of the first article. The presence of any defect or failure
39、to pass 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, components and materials shall be inspected in accordance with all the requirements of r
40、eferenced documents unless otherwise excluded, amended, modified, or qualified in this document or applicable purchase document. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-4183 OE 4.4.2 In process examination. Examination shall be made
41、to determine whether the following are as specified: a. There shall be no lubrication of polyester thread prior to or during sewing operations for compliance with 3.3.1.4. b. Holes punched to receive grommets are in compliance with 3.3.2. C. Surfaces to be welded shall be clean for compliance with 3
42、.3.7. d. Surface of frame components shall be treated, prior to application of primer, for compliance with 3.3.10. e. Primer coat has produced good coverage and is thoroughly dry prior to application of enamel for compliance with 3.3.10. Whenever nonconformance is noted, correction shall be made to
43、the item affected and to the process. * 4.4.3 Tent and cover visual examination. The completely fabricated tent or cover, as applicable, shall be examined for the defects listed in table i: The lot size shall be expressed in units of tents or covers, as applicable. The sample unit shall be one tent
44、or cover, as applicable. For inspection of tents, the inspection level shall be I and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 6.5 for major defects, 15.0 for combined major and minor A defects, and 40.0 for total combined (major, minor A, and min
45、or B) defects. For inspection of covers, the inspection level shall he S-3 and the AQL shall be 10.0 for major defects, 15.0 for combined major and minor A defects, and 40.0 for total combined (major, minor A, and minor B) defects. e 11 Provided by IHSNot for ResaleNo reproduction or networking perm
46、itted without license from IHS-,-,-MIL-T-4L3OE 3 9797906 0373568 7 MIL-T-4 1830E TABLE I. Tent and cover visual defects , Examine Defect Classification Major Minor AB - Cut, tear, or hole (including exposed drill hole) greater than 1/8 inch in length or diameter: - on tent - on cover drill hole) 1/8
47、 inch or less in length or diameter: - more than 20 holes: Fabric Cut, tear or hole (including exposed - on tent - on cover 20 holes : - on tent - on cover 10 holes : - more than 10 but not more than - more than 5 but not more than - on tent Broken or missing yarn; multiple floats, clearly visible a
48、t normal inspection distance (approximately 3 feet) Webbing and tape Hardware Edge frayed or scalloped Broken Malformed: - fails to perform intended function - but will perform intended function Corroded area Burr or sharp edge which may cause injury in handling or damage to fabric 12 X X X X X X X
49、X X X X X X x. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-T-LiL30E 83 m 7777906 0391569 9 MIL-T-4 183 OE TABLE I. Tent and cover visual defects - Continued Examine Defect C las si f ica t i on Hardware - continued 1) Clip ends Gr omme t s Buckles Rope components Major Minor AB - Improperly clinched (i .e. webbing not Clinched excessively tight, cutting Webbing not i
