4820-01-406-8784 (M700P-5075-FL-3W-19)
4820-01-406-8784 is equivalent to manufacture part number 45M-421. It is a valve piston 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.