Radium NPT Round Internal Hex Plug

Radium NPT Round Internal Hex Plug

NPT round internal hex plug engineered by Radium Engineering for sealing unused NPT (National Pipe Thread) ports. This CNC-machined billet aluminum plug features a compact internal hex design for a clean, cosmetic appearance with reliable NPT thread sealing.

Available Part Numbers

• 14-0172: 1/8" NPT Round Internal Hex Plug
• 14-0173: 3/8" NPT Round Internal Hex Plug

Key Features

• ✓ CNC-machined billet aluminum construction
• ✓ Round internal hex design
• ✓ Compact and cosmetic appearance
• ✓ NPT tapered thread sealing
• ✓ Available in 1/8" and 3/8" NPT sizes
• ✓ Professional-grade motorsport component

Technical Specifications

• Part Numbers: 14-0172, 14-0173
• Construction: CNC-machined billet aluminum
• Design: Round internal hex
• Thread Type: NPT (National Pipe Thread)
• Available Sizes: 1/8" NPT, 3/8" NPT
• Application: Universal NPT ports

Applications

Ideal for sealing unused NPT ports on catch cans, manifolds, turbo oil drains, and other components. Perfect for motorsport, track, or high-performance street builds where clean, reliable NPT port sealing is required.

Benefits

• Internal hex provides clean, low-profile appearance
• NPT tapered threads ensure reliable sealing
• CNC-machined precision ensures proper fitment
• Multiple NPT sizes accommodate various applications
• Professional motorsport-grade construction

Important Note: NPT (National Pipe Thread) fittings seal by the intentional interference created by the tapered threads meshing together. Always use a small amount of PTFE paste or tape on NPT threads and tighten to finger tight, then add another 1.5 to 3 turns until tight.

Fast shipping available throughout Australia. Lead times may vary - contact us for current availability.