Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LE1428C found under Switch Fiber Optic by Ibi Systems Inc. The National Stock Number assigned to this part is 6021015813760, and the Federal Supply Class is 6021 Fiber Optic Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LE1428C.