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 6130-00-585-9448
NSN 5915-01-445-6577
NSN 6650-01-491-0858
NSN 5975-01-088-6925
NSN 5910-00-258-8383
NSN 5930-01-370-4452
NSN 5998-01-492-8465
NSN 5835-01-150-6084
NSN 5990-00-108-5400
NSN 6650-01-633-9147
NSN 5985-01-339-5677
NSN 6150-00-964-7303