Products Measuring Rectangular, pin and ring gauges Thread ring gauges NPT Thread ring gauge R NT R NT
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TruThread R NT
Thread ring gauge NPT

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ASME B1.20.1
NPT threads are tapered pipe threads that create a tight seal through mechanical compression. They are commonly used in pressure and fluid applications where leak prevention is essential.

The 1:16 taper allows for a self-sealing connection, but sealants like PTFE tape are recommended to enhance sealing and durability.
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Tolerance (ring), Tol.
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