Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IT 400151 (IT1011 found under Insert Screw Thread by Ambac International Corporation. The National Stock Number assigned to this part is 5325011583938, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like IT 400151 (IT1011.