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 6130-01-204-8215
NSN 6110-00-738-3400
NSN 6240-01-474-6914
NSN 6685-01-431-6820
NSN 6610-00-421-9853
NSN 6650-01-385-9447
NSN 5996-01-472-2509
NSN 5835-01-080-7784
NSN 5930-01-238-0718
NSN 5855-00-951-6483
NSN 6110-00-162-5519
NSN 6105-01-118-5445