Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LEMR40AZAAB0K0AT-ITEM 23.50 found under Impeller Vacuum Pump by Sihi Pumps Inc. The National Stock Number assigned to this part is 4310015754332, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LEMR40AZAAB0K0AT-ITEM 23.50.