Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 314605EMK42-4 found under Bolt Machine by Babcock And Wilcox Co. The National Stock Number assigned to this part is 5306002133823, 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 314605EMK42-4.