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 6685-01-447-1188
NSN 5950-01-233-0351
NSN 6145-01-193-0273
NSN 5990-00-827-4891
NSN 5965-01-464-9885
NSN 5905-01-168-8793
NSN 5910-01-228-6829
NSN 5925-01-504-0934
NSN 4140-00-081-6814
NSN 5990-00-185-5888
NSN 6240-00-800-4668
NSN 5930-00-116-4033