1、 MIL-DTL-549L 14 November 2001 - SUPERSEDING MIL-P-549K 20 March 1988 DETAILED SPECIFICATION POLES, TENT, UPRIGHT AND RIDGE This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers requirements for wooden tent
2、poles, upright and ridge (see 6.1). *1.2 Classification. (See 6.2). Type I - Upright Class 1 Solid Size - 5 feet 8 inches Size - 6 feet 2 inches Size - 7 feet Size - 21 Feet Class 2 Jointed Size - 8 feet 3 inches Size - 9 feet Size - 10 feet 3 inches Size - 12 feet 3 inches Beneficial comments (reco
3、mmendations, additions, deletions, clarifications) and any pertinent data which may be of use in improving this document should be addressed to: Defense Supply Center Philadelphia, Clothing and Textiles Directorate, Attn: DSCP-CNR, 700 Robbins Ave., Philadelphia, PA 19111-5096 by using the Standardi
4、zation Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8340 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-549L 2 Type II - Ridge Class 1 Solid Size - 5 feet 11 inches
5、Size - 7 feet Size - 9 Feet Class 2 Jointed Size - 11 feet 10 inches including connector Size - 17 feet 3 inches Size - 20 feet 3 inches 2. APPLICABLE DOCUMENTS *2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include d
6、ocuments cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 o
7、f this specification, whether or not they are listed. 2.2 Government documents. *2.2.1 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 documen
8、ts are 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). SPECIFICATIONS FEDERAL A-A-208 - Ink, Marking, Stencil, Opaque (Porous and Non-Porous Surfaces) A-A-1558 - Paint, Stencil STANDARD
9、S DEPARTMENT OF DEFENSE MIL-STD-130 - Identification Marking of U.S. Military Property 2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise spec
10、ified, the issues are those cited in the solicitation. U.S. ARMY BIOLOGICAL Poles, Tent, Upright 5-4-123 - Poles, Tent, Upright and Ridge; Poles, Tent, Ridge Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-549L 3 5-4-124 - Poles, Tent, Uprigh
11、t and Ridge; Sleeves, Spindles and Ferrules 5-4-197 - Poles, Tent, Ridge; 5 feet 11 inches 5-4-198 - Poles, Tent, Ridge; Complete, Jointed 11 feet 10 inches and Connector 5-4-5526 - Pole, Tent, Ridge Assembly (20 feet 3 inches) 5-4-5527 - Pole, Ridge Male 5-4-5528 - Pole, Ridge Female 5-4-5530 - Fer
12、rule, Ridge Pole (Copies of drawings are available from the U. S. Army Biological and Chemical Command, ATTN: SSCNC-EMSS, Natick, MA 01760-5017.) *2.3 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the i
13、ssues 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). AMERICAN SOCIETY FOR TESTING AND MATER
14、IALS (ASTM) ASTM-A-108 - Steel Bar, Carbon, Cold Finished, Standard Quality ASTM-A-153 - Zinc Coating (Hot Dip) on Iron and Steel Hardware ASTM-A-513 - Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing ASTM-A-519 - Seamless Carbon and Alloy Steel Mechanical Tubing ASTM-A-575 - Stee
15、l Bars, Carbon, Merchant Quality, M-Grades, Standard Specification for ASTM-A-827 - Plates, Carbon Steel, for Forging and Similar Applications ASTM-B-633 - Electrodeposited Coatings of Zinc on Iron and Steel ASTM-A-1001 - Standard Specification for High Strength Steel Castings in Heavy Sections ASTM
16、-A-1008 - Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability ASTM-D-4442 - Wood and Wood-Base Materials, Direct Moisture Content Measurement of (Applications for copies of referenced documents should
17、 be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19426-2959.) SOCIETY OF AUTOMOTIVE ENGINEERS SAE-AMS-QQ-S-700 - Steel, Sheet and Strip, Medium and High Carbon (Applications for copies of referenced documents should be addressed to the Soc
18、iety of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096-0001) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-549L 4 *2.4 Order of precedence. In the event of a conflict between the text of this specification and the refere
19、nces cited herein, the text of this specification takes precedence. Nothing in this specification, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS *3.1 First article. When specified (see 6.2), a sample shall be subjected to first art
20、icle inspection (see 4.2 and 6.4). 3.2 Materials and components. The materials (see 6.5) and components shall be as specified on the applicable drawings and as specified herein. 3.2.1 Wood. The wood used for the poles shall be uniformly dried, without brashness, honeycombing or case hardening. At th
21、e time of fabrication, the wood shall have a moisture content of not less than 8% or more than 12% when tested as specified in 4.4.1.1. The wood shall be any of the following species: Soft woods Hard woods Cedar, Alaska Yellow Ash, White Cedar, Port Oxford Beech Cypress Birch Douglas-Fir Elm, Rock H
22、emlock, West Coast Hickory Larch, Western Maple, Sugar or Black Pine, Red (Norway) (Hard) Pine, Southern Yellow Oak Redwood Pecan Spruce, Sitka or Eastern Kerruig/Apitong Phillippine Hardwood Kapur Malaysian Hardwood Soft wood shall have not less than four annual rings per inch, measured radially at
23、 either end of the pole. When tested as specified in 4.4.1.1, hard wood, excluding ash, shall weigh not less than 32 lbs/ft3 at a moisture content of 12%. Ash shall weigh not less than 38 lbs/ft3 at a moisture content of 12%. 3.2.2 Steel tube. Steel tube shall conform to killed or semikilled, seamle
24、ss or electric resistance welded, numbers MT1020, condition HR or CD of ASTM-A-513 or ASTM-A-519. *3.2.3 Steel sheet and strip. Steel sheet and strip shall be cold rolled commercial quality, conforming to ASTM A 1008, hot rolled of ASTM A 1011 or numbers 1025-1030 of SAE-AMS-QQ-S-700. 3.2.4 Steel ba
25、r. Steel bar shall conform to grades M-1015 through M-1031 of ASTM A 575 or grades 1015 through 1035 of ASTM A 108. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-549L 5 *3.2.5 Steel plate. Steel plate shall conform to ASTM A 827 except that
26、 the composition shall be SAE 1015 through SAE 1030. 3.2.6 Marking ink. The marking ink shall be black in color conforming to type I or II of A-A-1558 or type II or III of A-A-208. 3.2.7 Metal fasteners. Rivets, wood screws, bolts, nuts and washers shall be of commercial grade conforming to types an
27、d sizes as specified on the applicable drawings. 3.3 Construction. The construction shall conform in all respects to the drawings listed in section 2 and shall be as specified herein. 3.3.1 Ferrules and sleeves. Sleeves shall be fabricated of steel tube specified in 3.2.2 or steel sheet or strip spe
28、cified in 3.2.3. Ferrules shall be fabricated of steel specified in 3.2.2, 3.2.3 or 3.2.4. Ferrules and sleeves shall be driven fit where specified on the drawings. 3.3.2 Poles. Wood used in the fabrication of the tent poles shall conform to the requirements of 3.2.1. The wood components shall be cu
29、t in the direction of the grain and shall be smoothly surfaced on all faces. Wood components shall be free of decay, split, wane, unsound knots and other defects. Other defects shall be limited as follows: a. Irregularity of grain. Local irregularity of grain shall not exceed one-third the inscribed
30、 diameter on a type I pole or one-third the width of face on which it occurs on a type II pole. b. Knots. Naturally sound, tight knots shall not exceed one-third the inscribed diameter on a type I pole or one-fourth the width of face on which they occur on a type II pole and shall be at least 12 inc
31、hes apart. (1) The knot holes are cleaned out and are free of any bark, pitch and sap. (2) The cleaned knot holes are completely filled with an epoxy filler. (3) The epoxy fillings within the holes are sound, tight and shall not exceed the dimensional requirements of sound, tight knots as specified
32、herein. c. Holes. Holes shall not exceed 1/16 inch in diameter and shall not occur within 2 inches of each other. d. Bark and pitch pocket. Bark and pitch pocket shall not exceed 1/8 inch in width and 8 inches in length, or inch in width and 4 inches in length. There shall be not more than two such
33、permissible pockets in any pole or section of pole. e. Checks. Surface checks shall not exceed 1/32 inch in width and 10 inches in length. There shall be not more than two such permissible surface checks in any pole or section o pole, and they shall be located at least 24 inches apart. f. Shakes. Sh
34、akes shall be limited in the same manner as checks. g. Warp. Warp shall be measured from a line drawn end to end of the piece and shall not exceed 1/32 inch for each foot of length of any pole or section of pole. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
35、om IHS-,-,-MIL-DTL-549L 6 3.3.3 Pole connector. The pole connector shall conform to Drawing 5-4-198 and shall be fabricated of steel specified in 3.2.4 or 3.2.5. 3.3.4 Swivel plate. The swivel plate shall conform to Drawing 5-4-198 and shall be fabricated of steel specified in 3.2.4 or 3.2.5. 3.3.5
36、Spindles. The spindles plate shall conform to Drawing 5-4-124 and shall be fabricated of steel specified in 3.2.4. 3.3.6 Welding. Welding, except spot or projection welds on ridge pole ferrules, shall be continuous, sound, smooth and free from pits, holes, and fissures. Rough or projecting edges sha
37、ll be ground smooth. Spot and projection welds shall be sound, smooth and free from pits, burns or flashes. Ridge pole sleeves shall be welded at the center of the bottom, as shown on Drawing 5-4-124, or along the lower left or right corner of the sleeve with a continuous weld end to end. 3.4 Finish
38、. All metal components shown on drawings and specified herein prior to zinc coating shall have all welding and drilling of holes when applicable completed and be thoroughly cleaned. The zinc coating on all surfaces except fasteners indicated on drawing shall conform to ASTM A 153. All fasteners (bol
39、ts, nuts, washers, screws, cotter pins and rivets) shall be zinc plated in accordance with type IV finish, service condition SC3 of ASTM B 633. 3.5 Marking. Each pole of section shall be marked with the letters “U.S.”, the contractors name, trade name or trademark, and the year of contract approxima
40、tely in the center of its length in legible characters with ink specified in 3.2.6. All marking shall conform to MIL-STD-130. In addition, each pole shall be marked with the following information, as applicable: Upright - 5 feet 8 inches Upright - 6 feet 2 inches Upright - 7 feet Upright - Male sect
41、ion for 8 foot 3 inch pole Upright - Female section for 8 foot 3 inch pole Upright - Male section for 9 foot pole Upright - Female section for 9 foot pole Upright - Male section for 10 foot 3 inch pole Upright - Male section for 12 foot 3 inch pole Upright - Female section for 10 foot 3 inch or 12 f
42、oot 3 inch pole Upright - 21 feet Ridge - 5 feet 11-1/4 inches Ridge - 7 feet Ridge - 9 feet Ridge - Male section for 11 foot 10 inch pole with connector Ridge - Female section for 11 foot 10 inch pole with connector Ridge - Male section for 17 foot 3 inch pole Ridge - Extension piece for 17 foot 3
43、inch pole Ridge - Female section for 17 foot 3 inch pole Ridge - Male section for 20 foot 3 1/2 inch pole Ridge - Female section for 20 foot 3 1/2 inch pole The marking shall be legible, retain the original color, not smear with vigorous rubbing or crack or peel when immersed in water and tested as
44、specified in 4.4.5. 3.6 Workmanship. The tent poles shall conform to the quality of product established by this document. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-549L 7 *3.7 Recycled, recovered, or environmentally preferable materials
45、. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 4. VERIFICATION 4.1 Responsibility for dimen
46、sional requirements. Unless otherwise specified in the contract or purchase order, the contractor is responsible for ensuring that all dimensions specified have been met. When dimensions cannot be examined on the end item, inspection shall be made at any point, or at all points in the manufacturing
47、process necessary to ensure compliance with all dimensional requirements. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3). b. Conformance inspection (see 4.4). 4.3 First article inspection. When a first
48、article is required (see 6.2) it shall be examined for the defects listed in 4.4.3 and 4.4.4 and tested as specified in 4.4.5. The presence of any defect or failure of any test shall be cause for rejection of the first article. 4.4 Conformance inspection. Sampling for inspection shall be as specifie
49、d in the contract or purchase order. *4.4.1 Component testing. In addition to the quality assurance provisions of the subsidiary documents and drawings, testing shall be performed on components listed in table I for the test characteristics shown. The lot size shall be expressed in terms of wood (100 blanks). The sample unit shall be as speci
