MIL-S-62076 Semitrailer Chassis: Intermodal Cargo Container Carrying, Commercial And Container, Cargo: Intermodal, Demountable, CommercialThis specification covers 20 and 40 foot semitrailer chassis and 20 and 40 foot demountable closed cargo containers intermodal type for transporting and storage cargo. The semitrailer chassis and demountable containers may be procured as a combined unit or as individual items to supplement an existing system. The semitrailer chassis are of the tandem axle type and have minimum gross weight ratings of 51,050 pounds for the model A, 20 foot chassis, 74,500 pounds for the model B, 40 foot chassis, and 75,800 pounds for the model C, 40 foot chassis. Items procured under this specification are commercial items which shall be warranted by the manufacturer as specified in procurement documents.

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MIL-S-62076B(AT)

placed in the travel position, the landing gear legs shall remain positively locked. The landing gear shall be protected to preclude the entrance of foreign matter which would impair its functioning or mechanical efficiency. The semitrailer unit, loaded to its gross weight rating (see 3.2.3.1), shall not nose over when resting on the landing gear.

3.4.7.1 Range of adjustment. The landing gear shall have a range of adjustment sufficient to vary the height of the upper fifth wheel plate at the kingpin from 46 inches to not less than

54 inches from the ground. The minimum ground clearance with the landing gear retracted shall be 12 inches at a 48-inch upper fifth wheel plate height.

3.4.8 Rear end protection. Semitrailer unit rear end protection shall be provided in accordance with Federal Motor Carrier Safety Regulation 393.86.

3.4.9 Lighting. All lights and reflectors shall be protected from operational hazards by mounting in recessed or otherwise guarded locations. Lights and reflectors shall not be mounted on vertical surfaces of rub rails (unless recessed and fully protected) or on the semitrailer bumper. Turn signal lamps conforming to SAE J588 shall be furnished at the rear of the semitrailer. All electrical wiring shall conform to SAE J1292. Clearance and identification lights shall be constructed for easy removal and replacement of lamps and lenses without the use of hand tools.

3.4.9.1 Receptacle 12-volt. The front of the semitrailer chassis shall be equipped with a

7-contact receptacle conforming to SAE J560 with the connectors connected and color coded as

specified therein. The receptacle shall be provided with a spring loaded cover. The receptacle shall be located in accordance with SAE J702.

3.4.9.2 Twelve-volt direct current (dc) system. A 12-volt dc lighting system conforming to

3.4.9 and 3.4.9.1 shall be provided. The 12-volt dc lighting system shall conform to Federal

Motor Carrier Safety Regulations 393.14, 393.20, 393.22, 393.23, 393.25 through 393.29,

393.32, and 393.33.

3.4.9.3 Independent 24-volt dc system. When specified (see 6.2), a 24-volt dc lighting system, independent of the 12-volt dc lighting system, shall be provided. Separate wiring and bulbs shall be provided for the 24-volt dc system. The system shall conform to 3.4.9. The