Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40011220-000 found under Nrp Surge Protector by L3 Communications Corp. The National Stock Number assigned to this part is 1680016415225, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 40011220-000.