4820-01-345-7213 (PLC-10848-007163XX)
NSN 4820-01-345-7213 (NIIN 01-345-7213) is a safety relief valve in Federal Supply Class 4820, Valves, Nonpowered — a valve designed to automatically release excessive pressures. Manufacturer part number PLC-10848-007163XX (Admiral Valve LLC, CAGE 99565); also referenced as 158 PLC10848 30R90 (Admiral Valve LLC).
Key specs: 30 psi maximum first response operating pressure; 90 psi maximum second response operating pressure; full characteristics table below. NIIN assigned September 1991; DEMIL A (none required); export Schedule B 8481.40.0000.