Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SD1854-5 found under Absorber Overvoltag by Dean Technology Inc. The National Stock Number assigned to this part is 5920002469589, and the Federal Supply Class is 5920 Fuses Arresters Absorbers And Protector. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SD1854-5.