A fitting used with a union nut and a tailpiece to form a union.
NSN 6240-01-541-0327
NSN 6685-00-542-1902
NSN 5975-01-598-9045
NSN 5985-00-821-3897
NSN 6135-01-576-9616
NSN 6240-00-462-7246
NSN 6320-01-271-0247
NSN 6220-01-526-2726
NSN 5950-00-058-2668
NSN 5975-00-189-0857
NSN 6610-01-139-4713
NSN 5835-00-339-3020