Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J40-1648 found under Roller Bearing by Federal Mogul Corp. The National Stock Number assigned to this part is 3110001203732, 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 J40-1648.