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 compressors other than refrigerating and air conditioning compressors
NSN 5999-00-051-5578
NSN 5855-00-089-3974
NSN 5945-00-290-1779
NSN 6240-01-190-5344
NSN 6150-01-207-0144
NSN 4140-00-343-2121
NSN 5915-01-633-9845
NSN 4140-00-983-4083
NSN 5855-01-558-3616
NSN 5975-01-560-2625
NSN 5935-01-224-6024
NSN 5935-00-407-2291