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 6240-01-499-6109
NSN 5975-01-133-3975
NSN 6130-01-650-3932
NSN 6620-01-306-1347
NSN 5945-01-053-5550
NSN 5998-01-176-0576
NSN 5895-01-575-5026
NSN 5965-01-167-3495
NSN 5910-01-222-0196
NSN 5935-00-531-0361
NSN 6145-00-715-1186
NSN 5975-01-374-8597