MIL-M-82021B, MILITARY SPECIFICATION: MONORAIL TRACK BEAM SYSTEMS FOR TROLLEY SUSPENDED HOISTS (29 DEC 1984) [S/S BY ANSI-MH27.1-81]

MIL-M-82021B, MILITARY SPECIFICATION: MONORAIL TRACK BEAM SYSTEMS FOR TROLLEY SUSPENDED HOISTS (29 DEC 1984) [S/S BY ANSI-MH27.1-81]., This specification covers overhead monorail track beam systems for use with trolley suspended hoist(s) of 1/2 through 10-ton capacity.