Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5R8007 found under Parts Kit Seal Repl by Caterpillar Inc. The National Stock Number assigned to this part is 5330013120757, 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 5R8007.