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 5920-01-371-3112
NSN 5910-01-422-4924
NSN 6130-00-625-8208
NSN 5935-00-477-1320
NSN 5999-00-596-1930
NSN 6110-01-265-8720
NSN 5925-01-388-3325
NSN 6240-00-006-3725
NSN 6110-01-008-1856
NSN 5835-01-354-0566
NSN 4140-01-089-9724
NSN 2925-01-548-6674