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 6150-01-519-3153
NSN 5960-01-641-3788
NSN 5935-01-066-5502
NSN 6145-01-654-6699
NSN 5895-01-500-4470
NSN 5999-01-365-2581
NSN 5950-00-932-4260
NSN 6610-01-096-0894
NSN 5905-01-140-1218
NSN 5935-01-420-5785
NSN 5985-00-957-8962
NSN 5930-00-116-8924