Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J52039 14 found under Spreader Bar Assy Kc by The Boeing Company. The National Stock Number assigned to this part is 1680016584544, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like J52039 14.