Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LO-5278 found under Seal Transfer Gearb by Qccllc. The National Stock Number assigned to this part is 5330000225131, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LO-5278.