A fitting used with a union nut and thread piece to form a union.
NSN 5925-01-485-0125
NSN 5895-01-600-4620
NSN 5935-01-634-0668
NSN 5996-01-099-8230
NSN 6650-00-227-8743
NSN 5935-00-899-4236
NSN 6105-00-411-8098
NSN 6135-00-299-6918
NSN 5950-00-244-0938
NSN 6150-00-500-8097
NSN 6150-00-596-9253
NSN 5930-01-049-3618