Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 632 642 found under Bearing Roller Tapered by Amarillo Gear Co. The National Stock Number assigned to this part is 3110014197790, 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 632 642.