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 2925-01-488-5140
NSN 6320-01-495-1244
NSN 5990-01-581-5103
NSN 6610-00-009-0925
NSN 5950-01-156-0409
NSN 6645-00-183-8812
NSN 6135-00-223-9563
NSN 5910-00-596-1417
NSN 6610-01-582-8181
NSN 5975-00-448-3179
NSN 5985-01-288-1785
NSN 5945-00-328-7300