Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 508443 found under Door Check Assembly by Budd Co The. The National Stock Number assigned to this part is 2510007373288, and the Federal Supply Class is 2510 Vehicular Cab Body And Frame Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 508443.