DIXON DF Pneumatic Threaded Plug, 1/2 in, Male FNPT, 500 psi, -40 to 250 deg F, Steel, Trivalent Chrome, 1.23 in Dia, 2-1/2 in L, For: Foster 3, 4, 5 and 6 Series, Parker 30 Series Automatic and 20 Series Manual Interchange, Hansen F-Series 3000, 4000, 5000, 6000 and D Series 1000, 400 and 500 Coupler