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 5920-01-396-5325
NSN 6620-01-044-3371
NSN 5985-01-268-1804
NSN 6130-01-199-7595
NSN 6620-01-354-2824
NSN 5855-01-244-4978
NSN 6150-01-534-8917
NSN 6685-00-305-9603
NSN 6320-01-162-5977
NSN 5920-01-616-0011
NSN 5905-01-390-5694
NSN 6610-01-463-5368