Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BW10-4045 found under Indicator Sight Liquid by Timken Gears And Services Inc. The National Stock Number assigned to this part is 6680002356008, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BW10-4045.