Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AL10C28HC ITEM 64 found under Valve Plug by Duffnorton Co Inc. The National Stock Number assigned to this part is 4810012640632, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AL10C28HC ITEM 64.