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 6220-01-197-7680
NSN 5965-01-222-2613
NSN 5965-01-185-2026
NSN 6650-00-195-7519
NSN 6320-01-443-4972
NSN 6135-00-947-0406
NSN 6240-00-548-3992
NSN 5920-01-214-5508
NSN 5950-01-581-4571
NSN 6135-01-071-4923
NSN 6110-01-327-0755
NSN 6135-01-451-2120