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 6645-00-489-8575
NSN 5965-00-083-8157
NSN 6130-01-436-7771
NSN 7035-00-225-6499
NSN 6145-01-278-8444
NSN 5920-00-948-7088
NSN 5925-01-429-0162
NSN 5925-01-265-0314
NSN 6220-01-389-3756
NSN 6105-00-926-7958
NSN 6685-01-467-0378
NSN 5945-01-169-4838