Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 39920 40135 1 found under Hinge Butt by Aai Corporation. The National Stock Number assigned to this part is 5340016682886, 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 39920 40135 1.