Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Q46 NI-CU ALLOY found under Nut Coupling Pump by Buffalo Pumps Inc. The National Stock Number assigned to this part is 5310011887821, 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 Q46 NI-CU ALLOY.