1in MPT Pipe Plug w/ Internal Allen

The 1in MPT Pipe Plug w/ Internal Allen from FRAGOLA is a precision hydraulic and pneumatic fitting designed to seal off 1-inch NPT (National Pipe Thread) ports in fluid power systems. This compact aluminum plug serves technicians, fabricators, and equipment operators who need reliable, leak-free port closure for testing, maintenance, or system configuration. Whether you're capping unused ports on manifolds, test blocks, or fluid power equipment, this fitting eliminates the need for improvised solutions that can compromise system integrity.

Machined from lightweight aluminum and finished in black anodize, the 1in MPT Pipe Plug w/ Internal Allen delivers corrosion resistance and durability in demanding shop and field environments. The internal Allen head (hex socket) design allows controlled installation and removal with a standard hex key, providing precise torque application without marring the fitting's exterior. The NPT male thread ensures a tapered, self-sealing connection that conforms to industry standards and integrates seamlessly with any standard 1-inch NPT female port. Black anodizing protects against oxidation while maintaining a professional appearance on visible assemblies.

Professionals in hydraulic shops, pneumatic system integrators, and equipment manufacturers rely on this plug for prototype builds, system troubleshooting, and component storage. Installation requires no special tools beyond a hex key matched to the Allen socket—a critical advantage in field service where portable kits are essential. The plug's compact footprint (2.35 x 0.95 x 4 inches) and light weight (0.06 lbs) make it ideal for tight manifold spaces and easy inventory management. Buy this fitting individually or in bulk to stock your facility with dependable port closure across your hydraulic and pneumatic infrastructure.