Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 737494 found under Nut Self Locking Single Ball Seat Hexagon by Case J I Co. The National Stock Number assigned to this part is 5310004778893, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 737494.