A fitting used with a union nut and a tailpiece to form a union.
NSN 5950-01-298-1932
NSN 5925-01-065-8353
NSN 6110-00-583-9821
NSN 2925-01-534-7314
NSN 6620-01-367-2597
NSN 6220-00-660-5539
NSN 5996-00-247-3808
NSN 5915-01-104-4977
NSN 6220-01-600-9687
NSN 5855-01-119-9575
NSN 7035-01-470-9074
NSN 2925-00-398-0253