Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U2146143728W2 found under Bearing Front Rear by Unifab Industries Inc. The National Stock Number assigned to this part is 3110012093550, and the Federal Supply Class is 3110 Bearings Antifriction Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U2146143728W2.