Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2621-002-03ASSY44 found under Union Pipe To Hose by Electric Boat Corporation. The National Stock Number assigned to this part is 4730010890487, 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 2621-002-03ASSY44.