Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CN50-20-SS found under Nut Union by Ssp Fittings Corp. The National Stock Number assigned to this part is 4730001887497, 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 CN50-20-SS.