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 6685-01-248-0946
NSN 6150-00-444-6959
NSN 5950-00-964-9949
NSN 5855-00-151-3853
NSN 5910-01-076-6361
NSN 6650-01-443-5342
NSN 6685-00-309-2210
NSN 5920-01-452-4544
NSN 5835-01-218-5560
NSN 5935-01-291-9249
NSN 5905-01-519-8673
NSN 5935-00-058-2518