Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4D3 0108 0300 found under Hose Air Duct by Hi Shear Corporation. The National Stock Number assigned to this part is 4720012409655, 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 4D3 0108 0300.