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 6685-01-093-4682
NSN 5996-01-130-8057
NSN 5996-00-269-2655
NSN 7035-00-517-8232
NSN 5965-00-836-2690
NSN 6220-01-604-7897
NSN 5945-00-135-4134
NSN 5985-01-630-4854
NSN 5960-01-268-8674
NSN 5895-01-552-6283
NSN 5975-00-360-2166
NSN 6130-01-199-2068