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 5895-00-081-2219
NSN 5915-01-261-6754
NSN 4140-01-389-6444
NSN 5998-01-245-0382
NSN 6650-01-434-6434
NSN 5965-01-526-8967
NSN 7035-01-438-2108
NSN 6130-00-153-9468
NSN 6645-01-078-4887
NSN 6610-01-453-1610
NSN 5998-00-434-2171
NSN 5925-01-041-5385