Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BLC4R31N found under by Satair Hardware Uk Ltd Sh Uk. The National Stock Number assigned to this part is 5315009696645, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BLC4R31N.