MIL-S-62549 Semitrailer, Low Bed, 40 Ton Nominal Payload For Transportation Of Heavy Engineer Construction Equipment, M870A2This specification covers a level frame, low bed semitrailer equipped with a folding gooseneck for front loading and movement of heavy engineer construction equipment.

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MIL-S-62549(AT)

SAE J848 - Fifth Wheel Kingpin, Heavy Duty, Commercial Trailers and

Semitrailers.

SAE J875 - Trailer Axle Alignment.

SAE J1292 - Automobile, Truck, Truck-Tractor, Trailer and Motor Coach

Wiring, Recm. Practice.

(Application for copies should be addressed to the Society of Automotive Engineers,

400 Commonwealth Drive, Warrendale, PA 15096.) THE TIRE AND RIM ASSOCIATION, INC.

Yearbook

(Application for copies should be addressed to the Tire and Rim Association, Inc.,

3200 W. Market Street, Akron, OH 44313.)

(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.)

2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), 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 First article. Unless otherwise specified (see 6.2), the contractor shall furnish semitrailers which shall be subjected to first article inspection (see 4.4). First article inspection samples, properly marked with identifying information shall be representative of the unit to be furnished to the Government. All subsequent semitrailers delivered to the Government shall conform to these samples in all of their pertinent physical and performance attributes.

3.2 Life cycle operation. The reliability and maintainability requirements shall be demonstrated over the life cycle operations of the semitrailer when operated for a total of

6,000 miles (mi) per vehicle in accordance with the operational profile in table I, the payload and distribution requirements of 3.2.1, and the environmental conditions of 3.2.2.