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 6130-01-198-2243
NSN 5915-01-128-4549
NSN 5855-01-437-6161
NSN 5998-01-485-0348
NSN 6105-00-011-3671
NSN 5915-00-232-7404
NSN 5925-01-130-0613
NSN 6145-01-564-2518
NSN 2925-01-244-3016
NSN 6105-00-647-3955
NSN 5945-01-398-6873
NSN 6110-01-098-1202