Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 66910677-1 found under Screw Cap Socket Head by Elop Electro Optical Industries Ltd. The National Stock Number assigned to this part is 5305013746353, 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 66910677-1.