OO-S-2771, FEDERAL SPECIFICATION, SCRAPER-TRACTORS: EARTH MOVING, HYDRAULIC OPERATED, 12 AND 20 CUBIC YARD MINIMUM HEAPED CAPACITY, DED (14 SEP 1992)

OO-S-2771, FEDERAL SPECIFICATION, SCRAPER-TRACTORS: EARTH MOVING, HYDRAULIC OPERATED, 12 AND 20 CUBIC YARD MINIMUM HEAPED CAPACITY, DED (14 SEP 1992)., This specification covers self-propelled, diesel-engine-driven, hydraulic operated, 12 and 20 cubic yard (cu yd) heaped capacity, earth moving, scraper-tractors.