Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 644597 found under Shelf Electrical Equipment by Cdw Government Llc. The National Stock Number assigned to this part is 5975015614436, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 644597.