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 5985-01-485-2416
NSN 5905-01-254-5191
NSN 5895-01-172-8078
NSN 6105-01-485-1846
NSN 6650-00-220-2839
NSN 5835-01-091-2553
NSN 5910-01-416-2965
NSN 5950-01-141-7019
NSN 5965-01-005-0341
NSN 6240-01-391-6833
NSN 6685-01-534-6330
NSN 5985-01-492-1033