Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 858-227443 found under Protector Thermal Overload Elect by Snydergeneral Corp. The National Stock Number assigned to this part is 6110004704654, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 858-227443.