1.236" inside diameter 1.630" outside diameter 0.218" material thickness concentric ring style id tapered 10 deg toward right face, materiel obtained from w. s. shamban company, fscm 97820
0.998" inside diameter 1.273" outside diameter 0.300" material thickness concentric ring style shall be compatible w/hydraulic fluid per mil-h-6083; temp range -65 deg f thru + 275 deg f; material nitrile (buna n)