Valves, Nonpowered
FSC 4820: Valves, Nonpowered
Federal Supply Class (FSC) 4820 covers nonpowered valves. These NSN items control fluid and gas flow by manual or self-acting means.
Nonpowered valves start, stop, and regulate flow by hand or by line pressure. They are basic to every fluid and gas system.
Common items include gate, globe, ball, check, and relief valves. Valves are made from bronze, steel, stainless steel, and elastomeric seals.