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 6105-01-117-2486
NSN 6610-01-614-7191
NSN 6220-01-509-3536
NSN 2925-00-422-5159
NSN 5895-01-461-2700
NSN 5965-01-142-1807
NSN 5945-00-517-9566
NSN 5855-01-128-1762
NSN 5915-01-201-5575
NSN 5925-00-186-0765
NSN 6620-01-067-8336
NSN 6105-01-493-8690