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 6685-01-267-1861
NSN 5855-01-428-9456
NSN 6130-01-434-6091
NSN 6130-00-889-0693
NSN 5895-01-236-7372
NSN 6645-01-347-4865
NSN 6650-01-094-3214
NSN 5975-00-519-9060
NSN 6220-01-605-9623
NSN 5960-00-948-1487
NSN 7035-00-553-6951
NSN 2925-00-118-4887