Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VNB31LHK ITEM 6 found under Shaft Shouldered by Mastergear Corp. The National Stock Number assigned to this part is 3040016565216, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VNB31LHK ITEM 6.