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: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 5835-01-620-0675
NSN 6130-00-106-8252
NSN 6645-01-381-6084
NSN 5945-00-296-8464
NSN 5950-00-068-0657
NSN 6240-01-619-2122
NSN 5925-01-152-4955
NSN 7035-01-543-6085
NSN 5930-00-491-1111
NSN 7035-01-494-1161
NSN 6685-01-268-2294
NSN 5935-01-170-7592