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 5965-01-545-5971
NSN 6145-01-361-8985
NSN 5920-01-472-6199
NSN 5910-01-156-9037
NSN 5950-00-262-6054
NSN 5895-00-709-2617
NSN 5915-01-224-5594
NSN 6110-01-254-7971
NSN 6620-00-248-6950
NSN 5985-00-922-6219
NSN 5999-01-367-2616
NSN 5996-00-070-4315