Brass Hex Coupler – Female NPT Fitting (1/4" & 1/2")

Secure Female NPT Coupler for Gas and Fluid Applications

Brass Hex Coupler – Female NPT offers a cost-effective, clean solution for connecting male-threaded NPT parts in gas or fluid systems. Precision-machined and burr-free, this coupler ensures tight, secure connections when used with proper thread sealant. Available in 1/4" and 1/2" FNPT sizes.

🔧 Features

• — Female NPT threads (1/4"-18 or 1/2"-14)
• — Hex design allows easy installation with standard tools
• — Made from durable, corrosion-resistant brass
• — Debris-free machining for clean, ready-to-use threads

✅ Advantages

• — Ensures tight compression between NPT-threaded parts
• — Supports high-integrity seals in low- and medium-pressure systems
• — Reduces leak risk when used with yellow gas-rated PTFE tape
• — Improves assembly speed with tool-friendly hex profile

🎯 Benefits

• — Reliable connector for gas, air, and fluid systems
• — Economical solution for non-potable line connections
• — Efficient part replacement or build-out for custom assemblies
• — Not rated for food or drink contact applications

🛠 How to Use

Apply yellow gas-rated PTFE tape or appropriate thread sealant to male threads. Thread the brass coupler onto the fitting and tighten securely using a wrench on the hex body.

📅 When to Use

Use to connect two male-threaded components in gas lines, vacuum systems, or fluid circulation setups—especially where brass is a preferred cost-saving material.

Available in 1/4" and 1/2" FNPT — clean, durable, and ready to install.

📋 Technical Specs

• — Material: Brass
• — Connection Type: Female NPT
• — Thread Sizes: 1/4"-18 FNPT, 1/2"-14 FNPT
• — Design: Hex Coupler
• — Sealant Required: Yes – PTFE tape (yellow gas-rated recommended)
• — Application: Air, gas, oil, and fluid systems (non-food)