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 6105-00-999-6208
NSN 5950-01-547-2693
NSN 6645-01-484-9847
NSN 5835-00-588-2196
NSN 6610-00-582-1107
NSN 5925-00-683-7877
NSN 5925-00-627-2011
NSN 6240-01-093-5553
NSN 5910-00-773-8049
NSN 6105-00-234-3504
NSN 4140-01-518-3646
NSN 6320-00-779-5923