Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 107634ERW18R found under Tube Rear Wall Wate by Babcock And Wilcox Co. The National Stock Number assigned to this part is 4710008505684, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 107634ERW18R.