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 5920-01-524-4126
NSN 4140-00-679-9512
NSN 4140-01-267-5137
NSN 6620-01-421-3917
NSN 5915-01-569-5655
NSN 5945-00-442-4276
NSN 5855-01-315-6180
NSN 6150-00-710-1753
NSN 5855-01-282-4881
NSN 6240-01-055-5193
NSN 7035-01-062-0184
NSN 6130-01-605-0942