Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SFL-2204-57 found under Switch Rotary by Brenner Metal Products Inc. The National Stock Number assigned to this part is 5930005569869, 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 SFL-2204-57.