Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 90K-S337-6 found under Plate Identificatio by Eaton Aerospace Ltd. The National Stock Number assigned to this part is 9905016309268, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 90K-S337-6.