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 5925-01-335-4415
NSN 6685-00-923-2972
NSN 6610-01-519-3080
NSN 5985-00-114-3915
NSN 6130-01-415-3345
NSN 6220-00-346-0738
NSN 5895-00-188-8156
NSN 6130-01-578-6832
NSN 6110-01-448-1736
NSN 5915-00-973-6803
NSN 5965-01-388-5296
NSN 6105-00-149-7956