Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5219 found under Cylinder Head Compressor by Buell Mfg Co. The National Stock Number assigned to this part is 4310012485226, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5219.