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 5925-01-615-8626
NSN 6685-01-407-8675
NSN 5835-01-544-5183
NSN 5910-01-424-0225
NSN 6685-01-553-8638
NSN 6150-00-967-5488
NSN 6110-01-030-9457
NSN 5996-01-568-4832
NSN 6135-01-523-3198
NSN 5999-00-955-5704
NSN 5905-01-111-8424
NSN 6110-00-072-9394