Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Y1944 found under Reducer Tube Wall by Thomas C Wilson Inc. The National Stock Number assigned to this part is 4730009692301, 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 Y1944.