MIL-T-62032 Trucks, Tank: Fuel Servicing And Aircraft Fuel Servicing, 1,000 To 4,000 Gallon, Diesel And Gasoline Engine Driven, 16,000 To 50,000 Pounds Gvw, 4X2, 4X4, 6X4, And 6X6, Modified CommercialThis specification covers diesel and gasoline engine driven, four-wheel, two- or four-wheel drive, and six-wheel, four- or six-wheel drive, single or dual delivery fuel servicing and aircraft fuel servicing tank trucks, with product capacities from 1,000 to 4,000 gallons, having minimum gross vehicle weights GVW of 16,000 to 50,000 pounds for normal operating conditions. Vehicles procured under this specification are commercial items which are warranted by the manufacturer as specified in acquisition documents.

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MIL-T-62032H

Tank inlet and discharge piping shall comply with 49 CFR, section 178.340-8 of MC-306 for accident damage protection against escape of contents. Piping shall be isolated from direct contact with dissimilar metals at the point of connection with the tank body or the automatic flow control valve. Tubing, pipe, galvanized coatings, gaskets and fittings shall not contaminate the fuel or decompose from contact with fuels. The piping installation shall be designed to

withstand expansion and vibration without failure, and shall conform to the strength and other

requirements of 49 CFR, section 178.340 of MC-306.

3.5.20.1 Grooved-end pipe clamp couplings or flanges. Clamp couplings or flanges, in accordance with MIL-C-10387 (Victaulic or equal), shall be provided on the inlet and outlet sides of the pump, meter, valves, and all other locations where flexible couplings are required.

3.5.20.1.1 Pipe grooves for couplings. Pipe grooves for couplings shall be in accordance with dimensions specified by MIL-P-10388, or by the coupling manufacturer. The groove and outside diameters shall be concentric to each other. The groove and the ends of the pipe shall be deburred to 0.003 to 0.020 inch chamfer or radius. The outside diameter of the pipe between the groove and the end of the pipe shall be smooth without evidence of scale, seams, weld splatter, digs, or scratches.

3.5.21 Suction stub. For types I through IV, the tank-to-pump suction line shall incorporate a suction stub. The stub shall be a 2.5 inch size and shall be provided with a manually operated shutoff valve, a 2.5 inch camlock quick-coupling, and a dust cap, in accordance with MIL-C-27487. The suction stub and shutoff valve shall terminate in the cabinet housing control panel, and shall be easily accessible to an operator standing on the ground.

3.5.21.1 Suction stub strainer. The suction stub line shall incorporate a nonferrous type

40-mesh strainer. The strainer shall be rigidly constructed and adequately sized to allow the rated flow at minimum pressure drop. The strainer screen shall be easily removable for cleaning and inspection.

3.5.22 Drains. All sections of the fuel discharge system, including the pump and the meter, shall be equipped with marked drain plugs. Drain plugs shall be located to assure complete drainage and security from pilferage. Drains that can be opened from outside the pumping compartments shall have provisions for locking the drain valves with a padlock.

3.5.23 Suction and gravity discharge hoses. The fuel servicing system shall be furnished with four 10-foot lengths of 2.5 inch noncollapsible, wire-reinforced hose. The hoses shall be provided with camlock quick-couplers and shall be stowed as specified in 3.5.16. The hoses

shall be in accordance with the requirements of 49 CFR, section 178.340-8.