Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4-22131P found under Microcircuit Linear by Bastogi Sistemi Spa. The National Stock Number assigned to this part is 5962001937587, 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 4-22131P.