A fitting used with a union nut and thread piece to form a union.
NSN 6110-01-500-0768
NSN 5985-01-639-8150
NSN 5950-00-288-5994
NSN 6320-01-544-2799
NSN 5855-00-904-9572
NSN 5985-00-773-7311
NSN 5985-01-073-1529
NSN 5975-00-189-0857
NSN 5895-00-849-0672
NSN 2925-00-295-8109
NSN 6145-01-596-0267
NSN 5935-01-218-0839