Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12378726 found under Dummy Coupling Automotive Air Br by Bae Systems Land And Armaments L P. The National Stock Number assigned to this part is 2530014222827, 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 12378726.