Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4J12073-131A found under Seal Assy Slat by Handy Tool And Mfg Co Inc The. The National Stock Number assigned to this part is 5330004984955, 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 4J12073-131A.