Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 68A450648-2003 found under Packing Nut by Aerometals Inc. The National Stock Number assigned to this part is 4730012480398, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 68A450648-2003.