From the compliance plate:
Truck, Fire Fighting, Air Transportable, Multipurpose Specification MIL-T-83235
Oshkosh Truck Corp. Model No M-1500
Capacity: Water 1500 Gal, Foam Concentrate 180 Gal
Vehicle Weight: 30,410
Gross Weight Max: 45,500
Date of Acceptance: November '76
Department of Defense
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