MIL-T-62319 Trucks, Cargo: Diesel Or Gasoline Engine Driven, 19,000 To 24,000 Pounds Gvw, 4X2 And 4X4, CommercialThis specification covers diesel or gasoline engine driven, four-wheel, two-rear-wheel drive, and four-wheel, four-wheel drive cargo trucks, having minimum gross vehicle weights GVW of 19,000 to 24,000 pounds, for normal operating conditions. The vehicles procured under this specification are commercial items which shall be warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62319C

3.2.6  Weight distribution.  The distribution of the GVW for the purpose of establishing suspension, axle, and tire capacities shall be determined with the payload uniformly distributed over the load area.

3.2.7  Ratings.  Vehicle ratings shall be the manufacturer's published ratings.  Component and vehicular ratings shall not be raised to meet the requirements of this specification.  When published ratings are not available, verification of ratings shall be made available to the engineering office of the procuring activity.  Minimum GVW ratings shall conform to table II for the specified class of vehicle.

*                                                    TABLE II.  GVW minimum ratings.

*    3.2.8  Overall width.  The overall width of the vehicle, exclusive of tires and safety related items such as mirrors, lights and reflectors, shall be not more than 96 inches.  The width over the tires shall be not more than 100 inches.

*    3.2.9  Accessibility.  The design of the vehicle and optional equipment shall permit access for routine servicing and shall permit access for replacement and adjustment of component parts and accessories with minimal disturbance of other components and systems.

*    3.2.10  Asbestos.  Asbestos materials shall not be used in any form in any part of the vehicle.

3.3  Performance.  The vehicle shall meet the following performance requirements.  For

4x4 model vehicles, performance requirements shall be met with front wheel drive disengaged except that a vehicle equipped with interaxle compensating devices shall meet the performance with the front wheel drive engaged.

3.3.1  Speeds and gradeability.  High and low speed requirements shall be met with the vehicle loaded to specified GVW.

3.3.1.1  High speed gradeability.  The vehicle shall ascend continuous grades specified in table III at 50 miles per hour (mph).  Gradeability requirements shall be met with the main transmission in direct drive, and when multispeed axle is furnished, with the axle in high speed range.  Gradeability shall be verified with calculations in accordance with SAE J688 (see 6.3).

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