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 5990-01-544-0364
NSN 5990-00-898-2675
NSN 5925-01-182-1220
NSN 6620-01-054-9346
NSN 6240-01-161-3727
NSN 6320-00-174-1362
NSN 5996-00-159-1056
NSN 6150-00-242-4885
NSN 6620-00-868-7104
NSN 5950-00-221-0848
NSN 6320-01-374-9924
NSN 7035-01-499-5506