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 5950-01-137-1404
NSN 5996-01-605-7650
NSN 4140-01-419-5505
NSN 5930-00-265-6293
NSN 5985-00-287-7309
NSN 5915-00-437-9703
NSN 6130-01-178-8291
NSN 5935-01-538-2225
NSN 6150-00-882-7247
NSN 5945-00-681-0371
NSN 6320-00-857-4073
NSN 5905-01-501-2913