Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WVTB-NOVA DN-0200 ITEM 12 found under Bearing Washer Thru by World Valve B V. The National Stock Number assigned to this part is 3120171107477, and the Federal Supply Class is 3120 Bearings Plain Unmounted. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WVTB-NOVA DN-0200 ITEM 12.