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 7035-01-127-9019
NSN 5975-00-099-9312
NSN 5935-01-528-7985
NSN 6145-01-580-2844
NSN 6610-01-200-6861
NSN 5990-01-443-2931
NSN 5930-00-150-2333
NSN 5945-01-307-9828
NSN 5950-01-258-9741
NSN 5895-00-419-3634
NSN 5910-01-323-7086
NSN 6220-01-431-7915