Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AA 1 4IN SS20 0 25DEG found under Nozzle Spray Fluid by Delavan Inc. The National Stock Number assigned to this part is 4730011877079, 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 AA 1 4IN SS20 0 25DEG.