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 7035-01-485-2134
NSN 6130-01-451-5137
NSN 6150-01-299-2642
NSN 2925-01-197-6777
NSN 5895-00-466-3100
NSN 5945-01-529-7321
NSN 5999-01-495-0468
NSN 2925-01-184-9604
NSN 5960-01-201-6316
NSN 6105-01-645-7033
NSN 6650-01-064-8941
NSN 5950-01-634-0677