Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 911 508 REF 23 2 1 2IN found under Handle Manual Control by Dover Resources Inc. The National Stock Number assigned to this part is 5340011387636, 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 911 508 REF 23 2 1 2IN.