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 6145-01-238-4979
NSN 6320-01-103-6218
NSN 5895-01-214-9145
NSN 4140-00-482-9221
NSN 5975-01-189-8957
NSN 4140-01-535-5269
NSN 5915-00-761-6890
NSN 5915-00-131-6344
NSN 5915-01-273-7428
NSN 5960-01-125-2356
NSN 7035-01-206-9143
NSN 5920-00-254-8429