Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M14-1 found under Bushing Electrical by Barker And Williamson. The National Stock Number assigned to this part is 5975004043481, and the Federal Supply Class is 5975 Electrical Hardware And Supplies. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M14-1.