Image Air Brake Sleeve Markets Transportation Jump to Section Product Options Related Products Product Options Part Number Length Tube Size Material 60NAB3 .23" 3/16" Brass 60NAB4 .30" 1/4" Brass 60NAB6 .39" 3/8" Brass 60NAB8 .43" 1/2" Brass 60NAB10 .49" 5/8" Brass 60NAB12 .54" 3/4" Brass Related Products Image Air Brake Female Connector Image Air Brake Insert Image Air Brake Male Branch Tee Image Air Brake Male Connector Image Air Brake Male Elbow Image Air Brake Nut Image D.O.T. Air Brake Tubing