Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 31-116 found under Parts Kit Air Motor by Itw Industrial Finishing. The National Stock Number assigned to this part is 2995016128737, and the Federal Supply Class is 2995 Miscellaneous Engine Accessories Aircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 31-116.