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 4140-00-456-2268
NSN 6620-00-400-4237
NSN 5905-00-977-0964
NSN 6130-00-305-7717
NSN 6110-01-447-6813
NSN 5930-00-299-7623
NSN 6620-01-195-9758
NSN 5965-01-406-6320
NSN 4140-01-509-9036
NSN 6685-01-448-4056
NSN 7035-00-390-6917
NSN 6620-01-572-8734