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 6105-01-129-8826
NSN 6150-00-169-8558
NSN 6150-00-288-6245
NSN 4140-01-067-0533
NSN 5960-01-194-4506
NSN 6145-00-494-2847
NSN 5835-01-272-4087
NSN 6240-00-043-2266
NSN 6685-01-340-6824
NSN 7035-01-562-7857
NSN 5950-00-007-2115
NSN 6650-00-269-5000