4470-00-297-8568 (71-02-31139E12IT42)
4470-00-297-8568 is equivalent to manufacture part number 28576FPC30-4. It is a manway seal diaphragm and is classified under Federal Supply Class 4470 (4470 - Nuclear Reactors), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4470 - Nuclear Reactors and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.