Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM-B-179206 found under Switch Rotary by Philips Ecg Inc. The National Stock Number assigned to this part is 5930005489964, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SM-B-179206.