4820-01-030-0232 (67A274D269)
4820-01-030-0232 is equivalent to manufacture part number 6304B. It is a back pressure valve and is classified under Federal Supply Class 4820 (4820 - Valves, Nonpowered), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4820 - Valves, Nonpowered and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.