Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S432-61199 B03-63A found under Switch Rotary by Scandinavian Boiler Serviceinc. The National Stock Number assigned to this part is 5930222691756, 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 S432-61199 B03-63A.