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 5855-01-175-3990
NSN 5945-01-577-9180
NSN 5935-01-181-6661
NSN 6135-01-642-0733
NSN 6145-01-115-6642
NSN 6110-00-323-9816
NSN 5925-01-161-3265
NSN 4140-01-585-7827
NSN 6135-01-255-9129
NSN 5998-00-673-8570
NSN 6240-01-389-3858
NSN 4140-01-019-0555