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 5905-01-311-8693
NSN 6220-01-204-2767
NSN 6135-01-476-4697
NSN 5975-00-518-0780
NSN 5855-01-472-3963
NSN 5999-01-089-6974
NSN 5975-00-879-8756
NSN 5905-00-814-2689
NSN 5930-01-187-2540
NSN 6685-01-193-4125
NSN 5945-01-415-1506
NSN 5960-00-519-6954