Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R1408SIZE1 found under Strainer Sediment by E J Willis Company Inc. The National Stock Number assigned to this part is 4730003534771, 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 R1408SIZE1.