Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 49-011-920-050 found under Wash Solution Automated Analyzer by Serono Baker Diagnostics Inc. The National Stock Number assigned to this part is 6630012419669, 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 49-011-920-050.