1/4″ x 4-1/2″ Black Steel Pipe Nipple Threaded NPT Fitting – B&K LLC

Overview

Upgrade or repair your gas or plumbing system with this ¼” x 4½” Black Steel Pipe Nipple from B & K LLC, a trusted manufacturer of industrial-grade piping components. This heavy-duty nipple features precision-cut 1/4″ NPT male threads on each end, making it ideal for joining, extending, or adapting gas, propane, LP, or natural gas piping setups.Constructed from durable black steel, this nipple provides excellent corrosion resistance and dependable performance in both residential and commercial gas applications. It fits seamlessly into HVAC systems, gas line installations, industrial projects, and general-purpose plumbing requiring threaded NPT pipe sections.Key FeaturesSize: 1/4″ x 4-1/2″Thread Type: 1/4″ NPT maleMaterial: Black steel for strength and corrosion resistanceIdeal For: Propane, LP gas, natural gas, HVAC routing, plumbing extensionsProduction Method: Precision-machined and threadedBrand: B & K LLCDLP#: 1K049This nipple is compatible with standard NPT-rated components including valves, regulators, couplings, tees, elbows, and fittings used throughout gas supply systems. Perfect for installers, mechanics, HVAC contractors, and industrial professionals needing a reliable, ready-to-use threaded pipe connector.

The B&K LLC Black Steel Pipe Nipple is a durable, heavy-duty threaded fitting designed for dependable performance in natural gas, propane, plumbing, HVAC, and industrial piping systems. Constructed from high-quality black steel, this 1/4-inch diameter by 4-1/2-inch length pipe nipple features male NPT (National Pipe Thread) threads on both ends for secure, leak-resistant connections.

Ideal for extending pipe runs, connecting threaded fittings, and replacing worn components, this pipe nipple is suitable for residential, commercial, and industrial applications.

---

Features

• Genuine B&K LLC black steel pipe nipple
• 1/4″ Nominal Pipe Size × 4-1/2″ Length
• Male NPT threaded ends
• Heavy-duty black steel construction
• Precision-machined threads for secure installation
• Corrosion-resistant black finish
• Suitable for natural gas, LP propane, oil, air, and water systems
• Compatible with standard NPT threaded fittings
• Ideal for plumbing, HVAC, and industrial piping applications
• Durable construction for long service life

---

Specifications

• Brand: B&K LLC
• Type: Pipe Nipple
• Nominal Pipe Size: 1/4″
• Length: 4-1/2″
• Thread Type: Male NPT × Male NPT
• Material: Black Steel
• Configuration: Straight
• Finish: Black Steel
• Connection Type: Threaded
• Application: Natural Gas, LP Gas, Oil, Water, Air, HVAC, Plumbing
• Condition: New

---

Applications

• Natural gas piping
• LP propane systems
• Residential and commercial plumbing
• HVAC installations
• Compressed air systems
• Oil transfer systems
• Industrial piping
• Pipe extensions and repairs

---

Package Includes

• 1 × B&K LLC 1/4″ × 4-1/2″ Black Steel Pipe Nipple

---

Important Notes

• Verify the pipe size, length, and NPT thread compatibility before purchasing.
• Use an approved pipe thread sealant or PTFE thread tape during installation.
• Installation should comply with all applicable plumbing and gas codes.
• This listing includes the pipe nipple only. No additional fittings or accessories are included.

Product details

Part / SKU	1K049