Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1590T 2.50IN IT11 found under Handwheel by Valve Automation And Control Of San. The National Stock Number assigned to this part is 5340014250836, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1590T 2.50IN IT11.