A fitting used with a union nut and thread piece to form a union.
NSN 6110-01-110-7739
NSN 5985-00-289-9862
NSN 6105-01-108-1688
NSN 5895-01-381-3328
NSN 6220-00-229-4125
NSN 6645-00-574-9712
NSN 6650-01-383-2163
NSN 6110-01-084-8217
NSN 6150-00-167-2272
NSN 5965-00-592-0812
NSN 6320-01-089-9086
NSN 6620-01-187-7267