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 5960-00-245-2645
NSN 6610-01-032-5335
NSN 5930-01-483-6351
NSN 5996-01-125-3334
NSN 5999-01-010-3039
NSN 5920-01-371-1248
NSN 5965-00-122-6426
NSN 5910-01-216-0271
NSN 6110-00-553-1853
NSN 6685-01-326-0901
NSN 5915-00-464-9106
NSN 6145-00-468-1261