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 6110-01-468-5955
NSN 5945-01-296-3496
NSN 6150-01-419-3806
NSN 5965-01-299-4568
NSN 5920-01-603-6441
NSN 6650-00-801-1681
NSN 6610-01-646-1609
NSN 6135-01-576-9616
NSN 5895-00-059-3889
NSN 5950-00-542-2168
NSN 5965-01-476-8539
NSN 7035-01-566-0779