Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 91-008-028 found under Fluid Needle Valve Spray Gun Pai by Accuspray Inc. The National Stock Number assigned to this part is 4940015195960, 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 91-008-028.