Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 66 0400 1 found under Contact Assembly El by Grimes Aerospace Company. The National Stock Number assigned to this part is 5999011335362, 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 66 0400 1.