Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JH3-12Z found under Union Pipe by Hollingsworth John R Co. The National Stock Number assigned to this part is 4730002775230, 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 JH3-12Z.