Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3-407-00002 found under Prism Assy Instrume by O And S Research Inc. The National Stock Number assigned to this part is 6610009087928, and the Federal Supply Class is 6610 Flight Instruments. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3-407-00002.