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 4140-00-198-4961
NSN 6650-01-012-3290
NSN 6320-00-557-3079
NSN 6240-00-968-9274
NSN 6110-01-654-9018
NSN 5975-01-252-8095
NSN 5895-01-020-8990
NSN 5999-00-300-0264
NSN 6620-01-375-6741
NSN 6220-01-376-3742
NSN 6240-00-491-7191
NSN 5965-00-242-3615