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 4140-01-294-0007
NSN 5835-00-111-3419
NSN 5930-01-422-4262
NSN 6650-01-386-5787
NSN 5925-00-279-1353
NSN 4140-01-305-8262
NSN 5925-01-039-6220
NSN 6105-00-246-5899
NSN 5996-01-186-9731
NSN 5985-01-633-4803
NSN 5998-01-029-2863
NSN 5920-01-441-2481