A fitting used with a union nut and a tailpiece to form a union.
NSN 6110-01-109-6986
NSN 6220-01-372-4094
NSN 6135-01-590-8320
NSN 5996-00-100-1238
NSN 5990-01-206-3606
NSN 5920-01-069-2992
NSN 4140-00-285-6042
NSN 5945-01-210-4991
NSN 5996-01-027-1342
NSN 5915-01-249-3113
NSN 6145-01-285-2104
NSN 5895-00-288-5878