Description
When you’re working on hydraulic lines, air compressor systems, or any threaded piping setup, you need a reliable way to seal off unused ports. This 1/4 inch male NPT plug does exactly that – screws right into any female threaded fitting to give you a leak-tight seal that keeps your system running properly.
What You’re Getting
- Standard 1/4 inch male NPT threading that fits any female NPT port
- Black iron construction that resists corrosion and handles pressure
- Hex head design that’s easy to install and remove with standard tools
- Tapered threads create a tight seal without needing gaskets or O-rings
Built for Real Farm Work
This plug is perfect for hydraulic systems on tractors and implements, pneumatic tools and air lines, or any threaded piping where you need to close off an unused port. Whether you’re working on loader hydraulics, finishing mower air systems, or shop air lines, this plug keeps things sealed up tight so your equipment performs like it should.
Made to Last
Black iron construction means this plug won’t rust out or fail under pressure like cheaper alternatives. The material is tough enough to handle the vibration and temperature changes that come with farm equipment, and it’ll maintain its seal season after season.
Good to Know
The tapered NPT threads create their own seal as you tighten the plug – no pipe thread compound needed, though a little never hurts for extra security. Don’t over-tighten; snug is usually enough. Keep a few of these around the shop since they’re handy for testing systems or temporarily plugging lines during repairs.






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