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 6685-01-090-8880
NSN 5910-00-273-3862
NSN 6620-01-352-5640
NSN 5965-01-308-9582
NSN 5920-01-212-9504
NSN 6620-00-527-9280
NSN 6240-00-099-8606
NSN 5999-01-420-7102
NSN 6620-01-656-1896
NSN 6645-00-400-3115
NSN 6685-01-504-9486
NSN 7035-00-096-9986