Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number JHP66-124 found under Seal Plain Encased by Hollingsworth John R Co. The National Stock Number assigned to this part is 5330007256978, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like JHP66-124.