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 7035-01-153-1767
NSN 5835-00-166-9413
NSN 5996-00-144-8091
NSN 5990-00-187-5249
NSN 5960-00-552-0287
NSN 5905-01-552-4645
NSN 6130-00-209-6716
NSN 5935-00-578-2827
NSN 5965-01-568-5399
NSN 6220-00-314-1751
NSN 5999-01-064-5745
NSN 5960-01-156-7469