Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31101 found under Hose Grinding Machine by Cincinnati Fan And Ventilator Co. The National Stock Number assigned to this part is 3415013159835, and the Federal Supply Class is 3415 Grinding Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 31101.