MS51890A, MILITARY STANDARD: FITTINGS, HYDRAULIC TUBE, FLARED 37 DEGREE AND FLARELESS, STEEL; CAP ASSEMBLY, TUBE, FLARELESS TYPE, HYDRAULIC (USE SAE-J514) (16 FEB 1988).
MS51890A, MILITARY STANDARD: FITTINGS, HYDRAULIC TUBE, FLARED 37 DEGREE AND FLARELESS, STEEL; CAP ASSEMBLY, TUBE, FLARELESS TYPE, HYDRAULIC (USE SAE-J514) (16 FEB 1988).