Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 157D1-1342 found under Belt V by Kurz Instruments Inc. The National Stock Number assigned to this part is 3030006321543, 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 157D1-1342.