Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E101 found under Switch Disconnect by Koolant Koolers Inc. The National Stock Number assigned to this part is 5999015235357, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E101.