Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PR2232 B1 B found under Switch Proximity by Scandinavian Boiler Serviceinc. The National Stock Number assigned to this part is 5930222691982, 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 PR2232 B1 B.