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 5905-01-401-5325
NSN 6620-01-324-7809
NSN 5950-01-381-2280
NSN 6105-01-552-5659
NSN 5915-01-428-1665
NSN 5920-01-312-1538
NSN 5915-01-512-8026
NSN 6620-01-036-6687
NSN 5998-00-976-5367
NSN 5930-01-301-8476
NSN 6220-01-531-4502
NSN 5965-00-067-7393