Single-Wire Hydraulic Hex Nipple 1/4″ × 3/8″

The Single-Wire Hydraulic Hex Nipple is a precision-engineered connector designed to transition from 1/4″ Male NPT to 3/8″ Male NPT threads. This compact fitting provides a reliable and leak-resistant solution for hydraulic systems, pressure washers, pneumatic setups, and general industrial applications. Crafted from durable materials and conforming to hydraulic standards, it’s a key component for maintaining secure fluid or air connections.

🔩 Product Specifications

Attribute	Detail
Thread 1	1/4″ Male NPT
Thread 2	3/8″ Male NPT
Material Options	Zinc-plated steel; 304 stainless steel
Pressure Rating	Up to 400 bar / 5,800 psi (G‑thread versions)
Seal Type	NPT tapered thread for self-sealing joints
Hexagonal Body	3/4″ across flats for easy wrench tightening

🎨 Material Variants

Zinc-Plated Steel: Offers corrosion protection for general-purpose hydraulic and pneumatic systems.
304 Stainless Steel: Ideal for demanding environments requiring higher corrosion resistance.

✅ Key Benefits

Compact Hex Body – Lightweight and easy to install, with a wrench flat design for secure tightening without over-torquing.
High Pressure Capability – Rated to ~400 bar (5,800 psi) for hydraulic G-thread variants; NPT versions offer high-performance sealing under NPT standards
Thread Compatibility – Converts between 1/4″ and 3/8″ NPT male threads, enabling integration across different line sizes.
Durable Finishes – Zinc plating provides cost-effective protection; stainless steel offers long-term resistance to corrosion and wear.
Industry Proven – Meets SAE and ANSI standards and aligns with fittings commonly stocked in hydraulic inventories

🛠 Typical Applications

Hydraulic hoses and test points
Pneumatic tool connections
Pressure washer adaptor fittings
Workshop fluid systems
Industrial and agricultural equipment setups

📏 Standard Variants

Material	Size	Pressure Rating
Zinc-Plated Steel	1/4″ × 3/8″ NPT	Standard hydraulic (~400 bar)
304 Stainless Steel	1/4″ × 3/8″ NPT	Corrosion-resistant systems

🔧 Installation Tips

Thread Tape/Sealant Recommended: For NPT threads, apply PTFE/PTFE-based tape for leak-free seals.
Proper Torque: Tighten to wrench flats; avoid excessive torque to maintain seal integrity.
Compatibility Check: Confirm seal type and thread standard (NPT vs G) on mating parts to ensure compatibility.

This Single-Wire 1/4″–3/8″ Hydraulic Hex Nipple offers a robust, compact solution for connecting varied thread sizes in high-pressure systems. With material options to suit both general-purpose and harsh environments, it delivers secure, long-lasting performance—available now at Singh Roofing Supplies.