Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MILB7838 found under Bolt Internal Wrenc by National Aerospace Standards. The National Stock Number assigned to this part is 5306005319513, 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 MILB7838.