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 5835-01-031-7265
NSN 5965-00-647-3972
NSN 5915-00-171-1812
NSN 5945-01-477-5531
NSN 6610-00-446-2880
NSN 5905-01-599-3258
NSN 5935-01-054-5554
NSN 6135-01-190-2628
NSN 6240-00-533-1493
NSN 6150-01-359-1253
NSN 6150-00-985-3385
NSN 6105-01-152-2800