Gasket, Connection Size 1: 5/16 in, Connection Type 1: SAE 45-deg Flared, Copper, For Use With: Aluminum, Brass, Copper, Steel Hydraulic Tubing That Can Be Flared, 1200 psi, -65 to 250 deg F, Additional Information: 0.22 in ID x 0.42 in OD, 0.032 in Tube Wall Thickness