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 6610-00-186-9180
NSN 5975-01-421-9934
NSN 6240-00-531-3187
NSN 5985-00-119-4619
NSN 6240-01-463-8276
NSN 5905-00-471-3041
NSN 6110-01-260-7183
NSN 5999-01-508-2326
NSN 5895-01-656-9178
NSN 6220-01-492-2563
NSN 6650-01-317-2101
NSN 6145-01-454-9612