Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11784B found under Chamber Air Brake by T And J Industries Inc. The National Stock Number assigned to this part is 2530002366355, and the Federal Supply Class is 2530 Vehicular Brake Steering Axle Wheel And Track Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 11784B.