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 6685-01-150-9474
NSN 5835-01-459-8664
NSN 6240-01-506-2059
NSN 6145-00-251-4970
NSN 6645-01-110-7397
NSN 5925-01-449-3952
NSN 6110-00-186-2542
NSN 6145-01-132-4136
NSN 6620-00-663-8962
NSN 5935-01-394-4968
NSN 5855-01-304-3064
NSN 5835-00-912-5656