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 6150-01-506-0792
NSN 5935-01-112-0337
NSN 5965-01-442-0490
NSN 6105-00-284-7642
NSN 5930-01-328-8510
NSN 5930-01-282-8972
NSN 6135-01-469-7574
NSN 5990-01-609-4793
NSN 6220-01-512-7392
NSN 6620-01-444-4048
NSN 5910-01-123-5321
NSN 5999-01-145-5084