Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1X3 4PTR found under Bushing Pipe by Ssp Fittings Corp. The National Stock Number assigned to this part is 4730001280196, 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 1X3 4PTR.