Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VR-1-1817 found under Vane Set Rotary by Thermal Engineering International. The National Stock Number assigned to this part is 4320011923566, and the Federal Supply Class is 4320 Power And Hand Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like VR-1-1817.