Martin JA 1/2 Standard QD Bushing, 1/2 in Dia Bore, 1-3/8 in Dia Barrel, 2 in Dia Flange, 1.063 in OAL, Steel
QD (quick detachable) bushings are designed for conventional mounting or reverse mounting. These bushings have a flange.
Martin QD Bushing, Standard, 1/2 in Bore Dia, 1-3/8 in Barrel Dia, 2-1/4 in Hub Dia, 1.665 in Bolt Circle, 2 in Flange Dia, 3/8 in Flange Thickness, 3 Bolt Holes, #10-24 x 1 in Screw, 1000 in-lb, 1.063 in Overall Length, 1/16 x 1/8 in Keyway, Steel