A fitting used with a union nut and a tailpiece to form a union.
NSN 5835-01-642-4705
NSN 5855-00-832-9341
NSN 5996-01-247-4407
NSN 6105-01-442-4343
NSN 6110-01-561-3135
NSN 6130-01-585-6481
NSN 6240-01-339-9698
NSN 6105-01-296-3778
NSN 5945-01-643-4005
NSN 5960-00-389-2915
NSN 5975-01-425-0802
NSN 5950-01-380-0962