Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D405212 ITEM 31 found under Bearing Roller Needle by Harding Safety Usa Inc. The National Stock Number assigned to this part is 3110012919127, 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 D405212 ITEM 31.