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Brass Adapter, 1/4-18 Male NPT Square Head Plug

Description & Features

Crafted from durable brass, this 1/4-18 Male NPT Square Head Plug is designed for use in a variety of industrial applications, including grease, refrigeration, instrumentation, and hydraulic systems. The plug features a robust brass body and a steel handle, ensuring reliable performance in demanding environments. With a pressure rating of up to 150 PSI and a temperature range from -65°F to +250°F, it is suitable for a broad range of industrial settings, though it is not intended for natural gas, LPG, nuclear, or aircraft applications.

The plug is engineered with a PTF SAE Short thread type, facilitating easy integration into systems requiring secure, leak-proof connections. Compact with an overall length of 0.74 inches, this plug is a versatile solution for automotive and industrial needs. Its compatibility with fuel and LP systems is available by special order, catering to specific operational requirements.

SKU: IG3151X4

Supplier Part Number (MPN): 3151X4

Specifications

Application Grease, refrigeration, instrumentation and hydraulic systems. Fuel, LP and natural gas available on special order.	End Gender 1 13554	End Size 1 0.25	End Type 1 PTF SAE Short	L 0.74	Minimum Working Temperature -65	Supplier Part Number 3151X4	Thread 1 1/4-18	Thread Sealant No	Product Weight 0.04 lbs

Product Questions & Answers (1)

Question by: Clint F on Jul 1, 2025, 3:55 PM

Can this plug handle hydraulic systems okay, or is it more for lower pressure stuff?

Answer by: Customer Support on Jul 2, 2025, 9:24 PM

It's rated for up to 150 PSI, which makes it suitable for many hydraulic, grease, refrigeration, and instrumentation systems. Keep in mind it's not for natural gas, LPG, nuclear, or aircraft applications.