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 7035-00-861-7913
NSN 5975-00-949-8461
NSN 5835-01-498-9410
NSN 5999-01-306-8599
NSN 5998-01-384-9034
NSN 6105-01-082-1208
NSN 6145-00-138-4658
NSN 6220-00-397-6910
NSN 5930-01-329-7837
NSN 5996-01-013-6177
NSN 5996-01-227-2555
NSN 5975-00-269-4365