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 6220-00-865-8069
NSN 4140-00-704-7615
NSN 6645-00-994-6664
NSN 5925-01-146-5528
NSN 6105-01-268-8150
NSN 6130-01-383-0416
NSN 5930-01-532-0640
NSN 5975-00-061-7035
NSN 6320-01-371-3047
NSN 5920-01-614-5983
NSN 6135-01-386-5709
NSN 5895-01-228-0453