Image Air Brake Union Tee Markets Transportation Jump to Section Product Options Related Products Product Options Part Number Length Tube Size Thread Thread Size Material 64NAB4 .95" 1/4" Straight 7/16"-24 Brass 64NAB6 1.24" 3/8" Straight 17/32"-24 Brass 64NAB8 1.45" 1/2" Straight 11/16"-20 Brass 64NAB10 1.58" 5/8" Straight 13/16"-18 Brass Related Products Image Air Brake Female Connector Image Air Brake Male Branch Tee Image Air Brake Male Run Tee Image Air Brake Sleeve Image Air Brake Union Image Air Brake Union Elbow Image D.O.T. Air Brake Tubing