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 5920-01-520-4447
NSN 6650-01-602-7567
NSN 5920-00-779-9560
NSN 2925-01-394-9658
NSN 5975-00-889-0496
NSN 5855-01-358-5253
NSN 6145-00-078-9917
NSN 5999-01-154-1058
NSN 5920-01-604-9045
NSN 4140-01-578-1559
NSN 5910-01-561-3912
NSN 6105-01-171-0271