Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C1553PQBR2 found under Switch Toggle by Arcolectric Corp. The National Stock Number assigned to this part is 5930014394365, 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 C1553PQBR2.