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 6110-01-487-4532
NSN 6105-01-315-6809
NSN 6685-00-279-3620
NSN 6145-01-398-8811
NSN 5990-00-594-7291
NSN 5999-00-926-3241
NSN 5855-01-381-6052
NSN 4140-01-062-4561
NSN 5996-00-705-4972
NSN 5920-00-174-6641
NSN 5935-01-442-6139
NSN 5999-00-005-9073