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 5835-00-466-8544
NSN 5965-01-399-8454
NSN 5915-00-156-2083
NSN 5985-01-217-5881
NSN 6110-00-435-0414
NSN 6240-01-071-2127
NSN 5920-01-038-1122
NSN 5920-01-396-2068
NSN 5985-01-422-0534
NSN 5905-00-497-7170
NSN 5925-01-578-0404
NSN 5930-01-032-4502