Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U2146F09B250V1 found under Fuse Cartridge by Unifab Industries Inc. The National Stock Number assigned to this part is 5920002803175, 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 U2146F09B250V1.