A fitting used with a union nut and a tailpiece to form a union.
NSN 6610-01-444-4851
NSN 5915-00-968-7515
NSN 5835-01-391-4556
NSN 6135-00-196-5267
NSN 5920-01-348-5280
NSN 5996-01-391-2733
NSN 5990-00-935-5610
NSN 5920-01-483-6830
NSN 5910-01-244-3440
NSN 6620-01-127-8161
NSN 5925-01-307-0693
NSN 5965-01-209-2838