Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 22-999 found under Switch Flow by Bae Systems Technology Solutions And Services Inc Dba Vitro Services. The National Stock Number assigned to this part is 5930007277240, 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 22-999.