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 6105-00-871-3868
NSN 6150-01-614-1396
NSN 5999-00-141-0291
NSN 6685-01-620-9893
NSN 6685-01-212-3972
NSN 6620-01-312-6350
NSN 5945-00-925-9992
NSN 5910-01-351-2265
NSN 2925-01-032-3814
NSN 5950-00-389-7139
NSN 5915-01-490-6471
NSN 6685-01-481-3864