Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D66-2011-122 found under Screw Externally Re by Landers Frary And Clark. The National Stock Number assigned to this part is 5305008235902, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D66-2011-122.