Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 11SM23 found under Switch Sensitive by Du Pont E I De Nemours And Co Inc. The National Stock Number assigned to this part is 5930006177330, 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 11SM23.