Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13800963-4 found under Nipple Pipe by Dana Off Highway Products Llc. The National Stock Number assigned to this part is 4730001537715, 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 13800963-4.