Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 104386-003 found under Tee Pipe To Tube by Aero Systems Engineering Inc. The National Stock Number assigned to this part is 4730002798123, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 104386-003.