Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MW50-11 found under Pumping Unit Sewage by Baker And Associates Inc. The National Stock Number assigned to this part is 4630010573422, and the Federal Supply Class is 4630 Sewage Treatment Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MW50-11.