Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X12154 found under Nut Tube Coupling by Teledyne Canada Bell Foundry. The National Stock Number assigned to this part is 4730000116452, 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 X12154.