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 5999-00-206-7317
NSN 6105-00-580-1435
NSN 6645-01-575-6955
NSN 5930-00-405-6153
NSN 5945-01-220-2615
NSN 5905-01-422-1670
NSN 6150-00-349-4790
NSN 5905-01-406-2720
NSN 6645-00-399-4551
NSN 6110-01-439-5212
NSN 6135-01-255-9129
NSN 5985-01-284-6306