Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5907-105B ITEM 12 found under Bearing Roller Needle by Speco Corp. The National Stock Number assigned to this part is 3110012946821, 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 5907-105B ITEM 12.