Used on truck,cargo,dropside 2 1/2ton 6x6 xlwb w/winch. 3a external thread class right-hand external 0.530" overall length dichromate surface treated plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
3b all ends thread class 37 degree flare per MS33584, both ends; do not prime primer nut surface treated swivel, wrenching facilities each end unjf all ends thread series
