Fragola -6AN O-ring for 9/16-18 radius fittings (pack of 6) in black is a replacement sealing component sized to fit -6AN connections with a 9/16-18 thread interface. Intended as a service part for fluid line assemblies, it provides the specified sealing geometry for radius fittings and threaded connections where that exact O-ring dimension and type are required.
Fragola -6AN x 9/16-18 (6) Radius Fitting O-Ring - Black