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 4140-00-555-3856
NSN 5960-00-071-4602
NSN 5950-01-334-7881
NSN 5960-01-496-7837
NSN 6150-01-597-7690
NSN 6135-01-583-9620
NSN 6620-01-228-1571
NSN 6150-00-281-3447
NSN 5920-00-276-8657
NSN 5975-00-572-9118
NSN 6110-01-463-1576
NSN 6685-01-519-9250