Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EC3A found under Contact Assembly Electrical by E C C Spares And Services Electro Work. The National Stock Number assigned to this part is 5999004980017, and the Federal Supply Class is 5999 Miscellaneous Electrical And Electronic Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like EC3A.