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 5920-01-418-1821
NSN 5950-01-241-9890
NSN 5960-01-481-3722
NSN 5915-01-414-8607
NSN 6145-01-468-2923
NSN 6130-01-591-0869
NSN 7035-00-541-8516
NSN 5895-01-536-6435
NSN 5975-00-526-4701
NSN 5895-01-583-8575
NSN 5985-00-661-2263
NSN 5920-00-584-4592