Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D4-315-1 found under Tube Assembly Metal by Parker Hannifin Ltd. The National Stock Number assigned to this part is 4710012329655, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D4-315-1.