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 6105-01-032-1774
NSN 6650-00-601-8944
NSN 6650-00-009-8249
NSN 6110-01-170-5379
NSN 5985-00-332-4008
NSN 6110-00-984-4273
NSN 6150-00-542-8668
NSN 5915-01-361-9026
NSN 5855-01-145-2457
NSN 5975-00-189-7849
NSN 6135-00-295-2614
NSN 6110-01-054-8245