1/8 inch x Close Brass Nipple

1/8" x Close Brass Pipe Nipple – Compact Threaded Connector for High-Integrity Systems

The 1/8" x Close Brass Nipple is a precision-machined, lead-free brass pipe segment used to join two female-threaded fittings in confined installations. With its close-length form—meaning threads run nearly the full length of the body—it is specifically suited for tight clearances and direct pipe-to-fitting connections where space is limited.

Manufactured from corrosion-resistant, lead-free brass conforming to ASTM B62 or equivalent, this fitting is approved for potable water systems and exhibits excellent performance under thermal cycling and variable pressure conditions. It is commonly used in small-diameter fluid and gas lines, instrumentation hookups, and other low-volume distribution applications.

Key Product Features

• ✅ Nominal Size: 1/8 inch NPT
• ✅ Length: Close – threads extend nearly the full body length
• ✅ Material: Lead-free brass, compliant with NSF/ANSI 61 and 372 for drinking water safety
• ✅ Connection Type: NPT (National Pipe Thread), male x male
• ✅ Temperature Range: Suitable for applications up to 200°F (93°C)
• ✅ Working Pressure: Rated up to 1,200 PSI (non-shock) in compatible systems

Installation Considerations

For optimal sealing and thread integrity, the use of PTFE tape or an approved anaerobic thread sealant is recommended. Tightening should be done with care to avoid thread distortion, especially in brass-to-brass or brass-to-soft-metal assemblies. As with all threaded connections, avoid over-tightening to maintain NPT thread engagement tolerances and prevent stress fractures.

Typical Applications

This brass close nipple is frequently installed in compressed air systems, potable water lines, pneumatic controls, and fuel-oil service setups. Its compact length makes it ideal for manifolds, valve banks, pressure gauges, and connection points requiring minimal footprint.

Regulatory Compliance

Brass fittings used in potable systems must meet lead-content restrictions established by the Safe Drinking Water Act. This nipple is third-party certified to comply with lead-free requirements under NSF/ANSI 372 and is suitable for installation in all 50 U.S. states.

Engineered for reliability, the 1/8" x Close Brass Nipple offers a durable and compact solution for precise, leak-resistant connections in pressure-rated systems. Specify this fitting when tight tolerances and lead-free compliance are essential.