Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4641 found under Shaft Mixing Machine by Middleby Marshall Inc. The National Stock Number assigned to this part is 3040003901488, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4641.