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 5996-01-519-3843
NSN 6645-00-078-5126
NSN 6320-01-103-6218
NSN 6620-00-959-6614
NSN 5910-01-227-5744
NSN 5925-01-075-4598
NSN 6685-01-406-4482
NSN 7035-01-172-0250
NSN 6130-01-181-8221
NSN 5855-01-250-2421
NSN 5945-00-451-5996
NSN 5960-00-256-1203