Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BM663 found under Bearing Roller Needle by Cooper Cameron Corp. The National Stock Number assigned to this part is 3110001203094, 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 BM663.