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 5895-00-218-1139
NSN 5985-01-023-8377
NSN 6105-01-524-6020
NSN 6145-01-342-7763
NSN 5835-01-482-1591
NSN 5935-01-504-3062
NSN 6220-01-165-8768
NSN 5910-00-150-8653
NSN 5925-00-840-7058
NSN 6135-01-031-8078
NSN 5998-01-621-8794
NSN 5950-00-888-1217