MIL-T-62222 Tank, Combat, Full-Tracked: 105Mm Gun, M48A5This specification covers one type of full-tracked, armored combat vechiles, which mounts a 105MM gun as the primary weapon.

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MIL-T-62222(AT)

TABLE I. Speeds and distances for break-in run.

Division of run

Speed

mph

Distance

miles

Test

conditions

a • • • • • • b • • • • • • c • • • • • • d • • • • • •

0 to 10

11 to 15

16 to 20

21 to Max.

Track (road) Track (road) Track (road) Track (road)

3.4 Physical characteristics.

3.4.1 Sealing. Unless otherwise specified, all seals and sealer shall prevent the entrance of water and foreign matter. Static seals shall provide an interference fit of sealing surfaces preventing the loss of leakage of fluids intended to contained by the seals. Dynamic seals shall prevent fluid leakage in the form of a drip (see 6.5.1) when the vehicle is standing idle. Evidence of lubricant at seals specifically designed to allow exit of flushed lubricants shall be permitted (see 4.6.2.1).

3.4.1.1 Hatch seals. Hatch seals shall prevent leakage of water into the crew compartment

(see 4.6.2.1.1).

3.4.1.2 Vision device and receptacle seals. When installed, the driver's, gunner's, and commander's periscopes shall be sealed to prevent any entry of water into the vehicle. The driver's infrared (IR) periscope shall not permit water entry in excess of a continuous drip (see 6.5.1) into the vehicle (see 4.6.2.1.1 and 4.6.2.1.2).

3.4.2 Hydraulic lines. Provisions shall be made to assure internal cleanliness of hydraulic lines and connections. Brake hydraulic lines and connections shall be free from leakage in the form of a drip (see 6.5.1) (see 4.6.3).

3.4.3 Ventilation system.

3.4.3.1 Vent blower. The vent blower shall pressurize the air inside the occupied areas of the vehicle (see 4.6.4.1).

3.4.3.2 Carbon monoxide. The ventilation system shall prevent harmful accumulations of carbon monoxide (CO) in the occupied areas of the vehicle. The concentrations of CO shall not exceed the percentage levels as indicated below throughout the respective time periods specified in table II (see 4.6.4.2).