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 6105-01-363-9225
NSN 6220-01-544-7749
NSN 6645-01-442-6476
NSN 6130-01-101-7511
NSN 5960-00-474-8254
NSN 6110-01-492-9694
NSN 6150-01-429-7097
NSN 5998-01-250-1664
NSN 5945-01-542-2187
NSN 2925-00-365-3289
NSN 5965-01-253-0451
NSN 6320-00-160-0899