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 6145-01-441-8571
NSN 5965-01-126-4178
NSN 6110-00-169-5722
NSN 6105-00-316-5098
NSN 5935-01-122-8531
NSN 5965-01-415-7080
NSN 6645-01-328-6886
NSN 6645-01-436-9702
NSN 5925-01-240-2137
NSN 6135-01-260-7180
NSN 6135-00-112-8637
NSN 6620-01-520-8601