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 5925-00-075-5534
NSN 7035-01-292-7439
NSN 5855-01-294-2804
NSN 4140-00-134-9116
NSN 5905-01-467-7567
NSN 5998-00-471-9047
NSN 7035-01-145-5059
NSN 6240-01-463-0026
NSN 6130-00-226-0417
NSN 6145-01-113-5282
NSN 6685-01-357-4424
NSN 6105-00-596-9962