Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3M1277E6D19A found under Bolt Close Toleranc by Monogram Aerospace Fasteners Inc. The National Stock Number assigned to this part is 5306016003729, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3M1277E6D19A.