Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 91589 found under Adapter Fuse by At And T Corp. The National Stock Number assigned to this part is 5920002803766, 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 91589.