Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E10-23643-1 found under Screw Sealing Acces by M And T Company The. The National Stock Number assigned to this part is 5305015164395, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E10-23643-1.