Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FTO-4NIXB-LCH-1 found under Meter Flow Rate Indicating by Fti Flow Technology Inc. The National Stock Number assigned to this part is 6680015265118, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FTO-4NIXB-LCH-1.