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 5998-01-091-1532
NSN 5999-01-316-6276
NSN 5960-01-359-6630
NSN 5999-00-794-2510
NSN 5895-01-283-6058
NSN 5998-01-044-7203
NSN 5999-01-370-0335
NSN 5975-01-166-2399
NSN 6150-01-106-8675
NSN 6130-01-435-3430
NSN 6135-00-044-3860
NSN 5945-00-520-5636