Distributor specializing in "O" rings, seals and gaskets of various compounds including silicone, teflon, gore-tex, and nitrile rubber.Seals, o-rings, and gaskets from Sealing Specialties, Inc. in Pennsylvania Sealing Specialties, Inc. is a stocking distributor of all types of o-rings , seals , mechanical seals , braided packings , gaskets , PTFE seals and elastomeric (rubber) seals . Sealing Specialties, Inc. has become recognized throughout the U.S. as a trusted supplier of o-rings and seals of all types. Since our primary focus is on o-rings, we have the inventory and service our customers