3/8-18 NPT Thread Ring Gauge for Inspecting Threads with Internal First Grade Thread Machining Cente

Ring and Plug Gauge
June 26, 2025
Category Connection: Ring and Plug Gauge
Brief: Discover the 3/8-18 NPT Thread Ring Gauge, designed for inspecting threads with internal first grade thread machining center. This precision tool ensures accurate thread measurement, conforming to FED-STD-H28/8.7 standards, and is made from durable GCR15 material for wear and corrosion resistance.
Related Product Features:
  • Available in GO, NO GO, and combination GO/NOGO types for versatile thread inspection.
  • Conforms to FED-STD-H28/8.7 standards for reliable and accurate measurements.
  • Constructed from GCR15 material for superior wear resistance and corrosion resistance.
  • Features a stable structure for ease of use and long-term durability.
  • Supplied in a fitted case for safe storage and transportation.
  • Used to inspect both internal and external NPT threads for quality assurance.
  • NPTF version available for dry seal applications, while NPT requires a sealing medium.
  • Manufactured per ANSI standards using internal first grade thread machining center.
Faqs:
  • What standards does the 3/8-18 NPT Thread Ring Gauge conform to?
    The gauge conforms to FED-STD-H28/8.7 standards, ensuring reliable and accurate thread measurements.
  • What material is the thread ring gauge made from?
    It is constructed from GCR15 material, known for its wear resistance, corrosion resistance, and durability.
  • How is the thread ring gauge used to inspect threads?
    For external threads, screw the gauge onto the thread; if it fits between the upper and lower base surfaces, the thread is qualified. For internal threads, use a thread plug gauge similarly.
  • What is the difference between NPT and NPTF thread ring gauges?
    NPTF is used as a dry seal, while NPT requires a sealing medium to prevent leaks.
  • Does Deko Corp offer customization for their gauges?
    Yes, Deko Corp provides OEM services for customized thread ring gauges.