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 6145-01-043-0158
NSN 6110-01-020-9495
NSN 5920-01-123-9854
NSN 4140-01-015-9283
NSN 5950-01-163-4040
NSN 5975-00-422-8500
NSN 7035-01-217-7474
NSN 5990-00-827-0684
NSN 5996-01-658-6647
NSN 6220-01-077-3461
NSN 5835-01-050-7882
NSN 6620-01-640-6761