Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P-90-A45 found under Conduit Box Assembly by Lincoln Electric Company. The National Stock Number assigned to this part is 5975013296372, 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 P-90-A45.