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 6150-00-467-0803
NSN 5920-01-250-1299
NSN 5960-01-505-2426
NSN 6150-01-212-6559
NSN 2925-01-049-8906
NSN 5835-01-035-9345
NSN 6130-01-441-0080
NSN 6145-00-539-9799
NSN 6145-00-004-5233
NSN 5920-01-218-6191
NSN 5996-00-989-4318
NSN 6320-00-450-7014