Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PZ0031 found under Switch Rotary by Phaostron Instrument And Electronic. The National Stock Number assigned to this part is 5930005666848, 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 PZ0031.