Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number I6X-SS found under Cross Tube by Ssp Fittings Corp. The National Stock Number assigned to this part is 4730004898207, 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 I6X-SS.