Shop 5406-C Male NPTF Pipe Caps

The Series 5406-C NPTF Pipe Caps in carbon steel are designed to securely seal male NPTF (National Pipe Tapered Fuel) threaded connections in fluid and gas systems. These caps provide a leak-free seal by utilizing a metal-to-metal connection, ensuring a tight fit without the need for additional sealing materials. Constructed from durable carbon steel, these pipe caps are ideal for single-assembly applications where reliable sealing is essential. They are typically used to close off open ports, preventing contaminants from entering and maintaining system integrity.

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Female NPT Caps

1/8" to 2" Nominal Tube OD

Carbon Steel

Click HERE to view the entire 5406-C Carbon Steel Cap MNPT Selection

Click HERE to view the entire 5406-C-SS Stainless Steel Cap MNPT Selection

Click HERE to view the entire 5406-C-B Brass Cap MNPT Selection

Shop 5406-C Male NPTF Pipe Caps, Carbon Steel

Click on the model number in the chart below to view that adapter.


Product SKU Brand Material Female NPTF Threads Lead Time Price
5406-C-02 OneHydraulics Steel 1/8-27 (-02) Same Day $0.63
5406-C-04 OneHydraulics Steel 1/4-18 (-04) Same Day $0.75
5406-C-06 OneHydraulics Steel 3/8-18 (-06) Same Day $1.12
5406-C-08 OneHydraulics Steel 1/2-14 (-08) Same Day $1.52
5406-C-12 OneHydraulics Steel 3/4-14 (-12) Same Day $2.37
5406-C-16 OneHydraulics Steel 1-11 1/2 (-16) Same Day $3.38
5406-C-20 OneHydraulics Steel 1-1/4-11 1/2 (-20) 1-3 Days $30.98
5406-C-24 OneHydraulics Steel 1-1/2-11-1/2 (-24) Same Day $50.93
5406-C-32 OneHydraulics Steel 2-11-1/2 (-32) 1-3 Days $76.88
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See the chart below for additional Dimensional Detail & Pressure Ratings




Still need help? Give us a call at 281.941.2310 or email us at sales@onehydraulics.com for technical support.