Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3M1277E6D9A found under Screw Cap Socket Head by B And B Specialties Inc. The National Stock Number assigned to this part is 5305016003736, 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 3M1277E6D9A.