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 5960-01-489-1510
NSN 6685-01-262-2366
NSN 5960-01-197-4461
NSN 6105-01-587-4908
NSN 6220-01-156-1168
NSN 5996-01-055-6572
NSN 5920-01-587-2675
NSN 5950-01-575-1859
NSN 6320-01-552-8721
NSN 6620-00-118-1983
NSN 6145-00-027-4824
NSN 5999-01-634-0576