10-32 or 1/4-28 Thread Knurled Test Plug

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Replacement O-Rings

O-Ring replacement for male 10-32 threaded MSPK fittings.

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Description: Test plugs with 10-32 or 1/4-28 threads. Plugs are knurled for fast and easy finger tight installation. All plugs also have a 3/16″ recessed hex drive.

Material: 303 Stainless Steel.

Max Pressure Rating: 3,000 psig (207 bar)


  • Beswick’s trademark O-ring seal design provides a leak-tight joint.