Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EXP 3403 found under Lead Assembly Electrical by Exponent Inc. The National Stock Number assigned to this part is 6150016265194, and the Federal Supply Class is 6150 Miscellaneous Electric Power And Distribution Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like EXP 3403.