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 6610-01-126-5616
NSN 6650-01-491-4406
NSN 6145-00-614-4075
NSN 6130-01-151-7811
NSN 5930-00-888-7520
NSN 5915-01-188-1569
NSN 5930-01-104-8503
NSN 6130-01-364-4881
NSN 5915-01-559-8039
NSN 5945-01-634-0588
NSN 5855-01-243-2355
NSN 5905-01-400-5968