Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 342003 found under Duct Air Splitter by Littelfuse Inc. The National Stock Number assigned to this part is 1560005725336, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 342003.