Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HSJB508-B1 found under Swivel Joint Hydrau by Parker Hannifin Ltd. The National Stock Number assigned to this part is 1650015934049, and the Federal Supply Class is 1650 Aircraft Hydraulic Vacuum And De-Icing System Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HSJB508-B1.