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 5935-00-295-6966
NSN 6320-01-605-7059
NSN 6240-01-268-2223
NSN 5935-00-628-8533
NSN 6685-01-302-0977
NSN 4140-00-019-0928
NSN 5930-01-218-9453
NSN 6105-00-938-2946
NSN 6105-00-202-2469
NSN 6685-01-245-8952
NSN 5990-00-594-7291
NSN 6110-01-319-7177