Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IT-5037H6-43B found under Hose Air Duct by Industrial Tube Company Llc. The National Stock Number assigned to this part is 4720014345501, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like IT-5037H6-43B.