MIL-D-3156C, MILITARY SPECIFICATION: DRAIN, FLOOR - CAST-IRON (22-AUG-1979) [S/S BY A-A-52028]

MIL-D-3156C, MILITARY SPECIFICATION: DRAIN, FLOOR - CAST-IRON (22-AUG-1979) [S/S BY A-A-52028]., This specification covers a flush-type cast-iron floor drain with slotted style open grate employed in temporary building construction.