Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 50T10 1240 found under Belt Positive Drive by Jason Incorporated. The National Stock Number assigned to this part is 3030016522937, and the Federal Supply Class is 3030 Belting Drive Belts Fan Belts And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 50T10 1240.