3/8in Pipe Plug

The 3/8in Pipe Plug from AEROQUIP is a precision hydraulic fitting designed to seal and cap 3/8 inch NPT (National Pipe Thread) ports on fluid power systems. This aluminum plug serves maintenance technicians, hydraulic system designers, and equipment operators who need reliable port closure during assembly, testing, or system downtime. Whether you're building a custom hydraulic circuit, performing service work, or protecting open ports from contamination, this fitting delivers the durability and performance required in demanding industrial and mobile applications.

Constructed from lightweight aluminum and finished with blue anodizing, the 3/8in Pipe Plug provides both corrosion resistance and visual identification within color-coded hydraulic systems. The Allen head design allows secure tightening with standard hex key tools, ensuring a tight seal without requiring specialized equipment. The NPT thread form creates a tapered fit that seals progressively as the plug is torqued, eliminating the need for additional sealant tape on most applications.

This fitting is ideal for agricultural equipment, construction machinery, aerospace systems, and industrial automation platforms where 3/8 inch NPT ports require temporary or permanent closure. Its compact profile fits easily into tight spaces common in manifold blocks and valve bodies. The 3/8in Pipe Plug is an essential component for anyone needing reliable hydraulic port closure.