Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31-8609 found under Microcircuit Linear by Racal Instruments Wireless Solutions. The National Stock Number assigned to this part is 5962007620633, and the Federal Supply Class is 5962 Microcircuits Electronic. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 31-8609.