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1742 Orbit Way
Minden, NV, 89423
United States


Mil-Spec Pressure Gauges

Extreme-duty gauges for a multitude of


Custom Designed: Our Mil-Spec gauges feature a Direct Drive helically-wound Bourdon tube design built to comply with Mil-G-18997.  This design is adapted to meet your desired performance specifications.  In addition to performance, our technology provides greater flexibility allowing for unique mounting configurations. 

Designed for Severe Service:  Perma-Cal® gauges deliver consistent high accuracy and dependable service under conditions of extreme vibration, pressure pulsations.  Our Mil-Spec gauges meet or exceed all applicable industrial, military and aerospace criteria and find wide usage in demanding OEM applications.

Typical Applications

  • defense systems
  • fuel pressure
  • various commercial & military vehicle hydraulic systems
  • pneumatic systems and more...

General Specifications

  • Direct Drive Design (helically wound bourdon tube)
  • No liquid fill (internally dampened)
  • Case and window designed to meet performance requirements
  • Shock Resistance: up to 100 G's
  • Ambient Temperature: -65°F to +450°F
  • Burst Pressure: minimum 500% F.S. pressure
  • Overpressure: upwards of 180%
  • Fatigue Life: often 1,000,000 cycles or more

Military Style Fittings

AS4395E04 (MS33656E04)

AS33514E04 (MS33514E04)

AS5202004 (MS33649-04)

AS5864E04 (MS33515E4)

AS4396E04 (MS33657E04)

9/16-18 O-Ring Union (commonly used on Mil-G 18997)

Contact the factory or complete a custom gauge form to inquire about Perma-Cal® Mil-Spec Gauges.  We look forward to combining our joint engineering expertise to build a gauge that solves your measurement problem.