Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QZ400325-0-7337 found under Brushelectrical Contact by Helwig Carbon Products Inc. The National Stock Number assigned to this part is 5977016810665, and the Federal Supply Class is 5977 Electrical Contact Brushes And Electrodes. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like QZ400325-0-7337.