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 7035-01-318-6578
NSN 5975-01-019-7873
NSN 6105-01-512-8752
NSN 5855-00-051-2792
NSN 5999-00-243-2134
NSN 5915-01-120-3340
NSN 4140-01-501-0928
NSN 2925-00-827-2326
NSN 6685-00-693-7275
NSN 5999-01-041-4904
NSN 5950-00-056-4502
NSN 5965-00-215-5866