Description
When you’re dealing with different thread types on hydraulic fittings, you need an adapter that’ll get the job done without leaking or failing under pressure. This straight adapter connects 3/8-18 NPTF male threads to 1/2-14 NPSM female swivel connections, letting you make those mismatched hydraulic lines work together smoothly. It’s rated for 3,500 PSI, so it’ll handle whatever your hydraulic system throws at it.
What You’re Getting
- Heavy-duty construction that stands up to the vibration and stress of farm work
- 3,500 PSI operating pressure rating for demanding hydraulic applications
- Swivel female end allows easy installation without having to twist the entire line
- 1-inch hex on both ends gives you plenty of grip for installation and removal
- Straight design keeps your hydraulic routing clean and efficient
Built for Real Farm Work
This adapter is perfect for connecting hydraulic lines on tractors, implements, and other farm equipment where you’re mixing different thread standards. Whether you’re dealing with older equipment that has NPSM threads or newer systems with NPTF, this adapter bridges the gap and keeps your hydraulics flowing properly.
Made to Last
The AgSmart brand builds these adapters to handle the punishment of farm life. The steel construction resists corrosion and wear, while the precision threading ensures a tight seal that won’t give you trouble down the road. At 3,500 PSI rating, it’s built for the high-pressure demands of modern hydraulic systems.
Good to Know
The swivel feature on the female end makes installation much easier—you don’t have to worry about getting the rotation perfect when threading everything together. Use proper thread sealant on the NPTF male end, but remember that NPSM threads seal with an O-ring, so don’t over-tighten the swivel connection.






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