NSN 5930-01-058-8494 is a Custom Control Sensors 611GB1 pressure switch marked 20 PSI. This is a military/industrial pressure-actuated electrical switch intended for applications where the exact NSN, part number, pressure setting, fittings, and electrical configuration must match the equipment being serviced. TECHNICAL INFORMATION NSN: 5930-01-058-8494 Manufacturer: Custom Control Sensors Part Number: 611GB1 Item: Pressure Switch Pressure Marking: 20 PSI FSC: 5930 - Switches Manufacturer CAGE: 09049 Condition: New old stock / unused military surplus Stored surplus packaging and exterior surfaces may show normal age or storage wear. Electrical and pressure operation have not been tested. Buyer should verify NSN 5930-01-058-8494, PN 611GB1, pressure setting, fittings, and electrical requirements against the intended application. Sold by Sumspace, operated by Southern Utah Makerspace Inc., a 501(c)(3) nonprofit in St. George, Utah.