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, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts
NSN 6220-01-407-5639
NSN 6320-01-562-1599
NSN 5915-01-443-3881
NSN 5998-00-157-6975
NSN 5835-01-540-4995
NSN 5915-01-166-7135
NSN 5950-01-258-4994
NSN 5990-01-333-8678
NSN 5998-01-449-1575
NSN 6320-01-418-2611
NSN 6320-01-299-6367
NSN 5930-01-611-2557