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 5950-01-298-6326
NSN 5965-01-325-0627
NSN 5915-00-420-1557
NSN 6650-00-253-9195
NSN 6105-00-082-7002
NSN 6650-01-461-7713
NSN 5945-00-573-7220
NSN 6620-01-124-0947
NSN 6645-01-122-3803
NSN 5996-01-212-4102
NSN 6150-01-527-2618
NSN 5930-00-604-0945