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 6135-00-686-4777
NSN 6610-00-498-3257
NSN 6135-00-575-8942
NSN 6150-01-199-2603
NSN 6650-01-478-7301
NSN 6320-01-246-4390
NSN 5945-00-222-5974
NSN 5855-01-068-3683
NSN 5910-00-152-4145
NSN 6135-01-528-6896
NSN 6645-01-167-5814
NSN 5975-01-095-7946