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 5930-01-575-1447
NSN 6650-01-487-4949
NSN 6105-01-030-1272
NSN 5999-01-442-6988
NSN 6685-01-331-7090
NSN 6610-00-053-9565
NSN 5935-01-184-6813
NSN 5985-00-401-7230
NSN 6130-01-099-8482
NSN 6650-01-219-8535
NSN 5996-00-578-9092
NSN 6650-01-360-3848