Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A3 8X1 4ME found under Connector Tubing St by Kalyn Siebert I Inc. The National Stock Number assigned to this part is 4730015173751, 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 A3 8X1 4ME.