Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0401745522 found under Standoff Threaded Spacing by Qinetiq North America Inc. The National Stock Number assigned to this part is 5340016640220, 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 0401745522.