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 5999-01-093-9488
NSN 6620-00-474-0605
NSN 7035-01-512-5396
NSN 6620-00-170-5296
NSN 4140-01-354-2686
NSN 5905-00-780-6052
NSN 6220-01-505-5102
NSN 7035-01-544-2069
NSN 5945-01-307-3574
NSN 6645-01-249-7209
NSN 5925-01-383-1463
NSN 5960-01-589-6846