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 6685-00-483-1417
NSN 5985-00-992-4511
NSN 5965-00-153-5216
NSN 4140-01-049-3977
NSN 6150-01-327-3770
NSN 6650-01-512-8103
NSN 5990-01-337-9859
NSN 5945-00-295-4990
NSN 5965-00-088-1722
NSN 5910-00-161-3977
NSN 6645-01-076-4655
NSN 5975-01-187-4696