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 5996-00-543-1566
NSN 5990-00-283-1324
NSN 5930-01-420-6372
NSN 6105-01-295-5307
NSN 5920-01-523-7428
NSN 6620-01-104-5510
NSN 2925-01-463-3899
NSN 5925-01-157-1289
NSN 4140-00-328-1527
NSN 6240-01-036-5884
NSN 5915-01-004-1784
NSN 5930-01-354-2592