Air Brake Cut Off Angle Cock With Vent And Reducing Bush To Rdso Drg No. Wd-88123-S-01 Alt 3, Reducing Bush To Icf Drg No. Emu-M-3-5-053 Alt N/17 Item No. 7, Rdso Spec 02-Abr-02 With Amendment 4 Of Sept-2016, Appx-D