Polychloroprene /neoprene/ coatedpolyester /dacron/ material, 4.297 in. O/a dia, 0.375in. Diameter center hole, 0.009 in. Thk
Reference Number Differentiating Characteristics
As differentiatedby special requirements for nuclear propulsion plantequipment contained in individual repair parts orderingdata, instrumentation control no. Ac0211a, line no. 0004