Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 210042-000 found under Switch Toggle by Bae Systems Information And Electronic Systems Integration Inc Div Bae Systems. The National Stock Number assigned to this part is 5930006361285, 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 210042-000.