5930-00-720-1481 (B506-1451)
NSN 5930-00-720-1481 (NIIN 00-720-1481) is a pressure switch in Federal Supply Class 5930, Switches — a switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Manufacturer part number B506-1451 (Dwyer Instruments Inc, CAGE 85274); also referenced as 1637-25, 1638-0 (Dwyer Instruments Inc).
Key specs: 7 A resistive load second voltage contact load current; 3.5 A resistive load first voltage contact load current; 40 °F minimum and 125 °F maximum operating range; full characteristics table below. NIIN assigned July 1971; DEMIL A (none required); unit of issue EA (each), $277.24 gov standard price; export Schedule B 8536.50.9065; ships at 5.24 lb / 0.2739 cu ft.