Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 504 20 45-01 found under Fittinglubrication by Electrolux Construction Products Inc. The National Stock Number assigned to this part is 4730016751868, 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 504 20 45-01.