Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 05.4169 found under Piston Trap Moistur by Spx Corporation. The National Stock Number assigned to this part is 4730011087805, 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 05.4169.