Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DR2571ITEMH found under Felt Mechanical Preformed by Allis Chalmers Corp. The National Stock Number assigned to this part is 5330004209742, 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 DR2571ITEMH.