Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UDB-131875 found under Spotter Blind Hole by United Drill Bushing Corporation. The National Stock Number assigned to this part is 5120010464994, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like UDB-131875.