1/8 inch x 6 inch Black Steel Nipple

1/8" x 6" Black Steel Nipple – Threaded Pipe Segment for Mechanical and Gas Systems

The 1/8" x 6" Black Steel Nipple is a rigid, threaded pipe section designed for use in low- to medium-pressure piping systems. Constructed from welded black steel pipe with male National Pipe Tapered Thread (NPT) ends, this fitting is used to connect two female-threaded components in a linear arrangement. Its extended length is ideal for applications requiring spacing or precise layout adjustments in confined installations.

Black steel nipples are commonly used in fuel gas lines, hydronic heating systems, compressed air systems, and low-pressure steam service, where corrosion-resistant coating is not required by code. This product is not suitable for potable water applications.

Product Features

• ✅ Nominal Pipe Size: 1/8"
• ✅ Length: 6" overall
• ✅ Material: Welded black steel pipe (typically ASTM A53 Grade B)
• ✅ Thread Ends: Male NPT on both sides for mechanical joining
• ✅ Use Case: Gas distribution, air lines, HVAC piping, low-pressure fluid transfer

Installation Guidelines

Install using appropriate sealing materials such as PTFE tape or thread compound to prevent leakage at threaded joints. Use pipe wrenches or strap tools to tighten without damaging the fitting. Ensure threads are clean and undamaged prior to installation. Always follow applicable codes for torque, spacing, and testing procedures—especially in fuel gas or pressurized systems.

Applications

This 1/8" x 6" nipple is commonly found in mechanical rooms, HVAC systems, fuel gas supply lines, and low-pressure steam piping. Its compact diameter and extended length make it well-suited for fine adjustment in tight assemblies, control systems, and regulator hookups.

Regulatory Considerations

This black steel nipple meets applicable standards for non-potable mechanical service. It is not intended for use in potable water systems or corrosive fluid environments without additional protective coating or lining. Check local codes for material approvals in gas and mechanical installations.

The 1/8" x 6" Black Steel Nipple offers reliable performance in demanding applications where a straight, rigid connection is needed. Its precise threading and consistent dimensional quality make it a dependable component in gas, air, and heating system infrastructure.