Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3408503 found under Sensor Exhaust Valve Position Em by Kalmar Limited. The National Stock Number assigned to this part is 2990014886089, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3408503.