A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6610-01-229-3679
NSN 5915-01-459-7303
NSN 5855-01-443-3970
NSN 5910-01-517-7403
NSN 6610-01-633-8931
NSN 6685-01-369-0601
NSN 5965-00-234-7338
NSN 5945-01-502-7339
NSN 5855-00-494-9581
NSN 6130-01-254-3934
NSN 5990-01-437-4876
NSN 5935-01-478-4251