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 for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil
NSN 5999-01-171-3750
NSN 6320-01-318-6518
NSN 6220-00-837-2848
NSN 6320-01-491-8786
NSN 5950-01-414-6930
NSN 6650-00-097-8359
NSN 5945-00-990-3933
NSN 2925-01-209-9245
NSN 6240-01-069-7693
NSN 5905-01-141-5529
NSN 5905-01-657-5358
NSN 5855-01-375-6690