Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4EF6-73354-4AF3 found under Gear Internal by Rexnord Llc Div Falk Gear Group. The National Stock Number assigned to this part is 3020005751657, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4EF6-73354-4AF3.