A DIY Enthusiast’s Guide to the Parts of a Spigot

Updated November 19th, 2023
unlacquered brass outdoor water spigot

As a DIY enthusiast, you’re no stranger to taking on various home improvement projects. One essential component of many outdoor projects is a spigot, also known as an outdoor faucet or hose bib.

Whether you’re installing a new spigot, repairing an existing one, or simply want to understand its inner workings, this guide is here to help.

In this comprehensive article, we will explore the various components of a spigot, their functions, and how to maintain and troubleshoot them effectively.

Understanding the Anatomy of a Spigot

main components of an outdoor faucet or spigot

A spigot or outdoor faucet may appear simple on the surface, but it comprises several components that work together to provide you with a reliable source of water for outdoor tasks such as gardening, lawn care, and cleaning. Let’s delve into the different components of a typical outdoor faucet.


The handle of a spigot or outdoor faucet is the part you turn to control the flow of water. It is usually a round knob, lever, or wheel that you can rotate clockwise to shut off the water and counterclockwise to open it. Some outdoor wall faucets have a single handle, while others may have two for hot and cold water.


Beneath the handle of wall-mount outdoor faucets lies the stem, which is a long, narrow piece that extends into the outdoor faucet body. When you turn the handle, the stem moves up or down, allowing water to flow freely or cutting it off completely.

Packing Nut

The packing nut is a threaded component that surrounds the stem and is situated just below the handle. Its purpose is to compress a packing material around the stem to prevent leaks. Over time, this packing material may wear out, leading to drips from the spigot.


Located above the packing nut, the bonnet serves as a protective cover for the stem and nut. It is essential for maintaining the integrity of the internal components and keeping them free from dirt and debris.


The body of the spigot is the main housing that encases the stem and other essential components. It is typically made of metal, such as brass or stainless steel, for durability. The body connects to the water supply line.

Valve Seat

Inside the body, you’ll find the valve seat. This is where the stem’s washer presses against to seal off the water flow when the outdoor faucet is in the closed position. Over time, mineral deposits can build up on the valve seat, causing leaks and reduced water flow.

Packing Washer

The washer or packing washer is a small, rubber or plastic ring that sits at the end of the stem. It creates a watertight seal against the valve seat when you turn the handle to shut off the water. Like the valve seat, washers can wear out and need periodic replacement.


At the base of the outdoor faucet for a garden hose or sprinkler system, you’ll find threads that allow you to attach a hose or other accessories. Properly maintained threads are crucial to ensuring a secure connection with no leaks.

Maintenance and Troubleshooting of a Spigot or Outdoor Faucet

outdoor faucet replacement

Now that you’re familiar with the components of an outdoor faucet, let’s discuss maintenance and troubleshooting tips to keep your outdoor faucet in top working condition:

Regular Inspection of Outdoor Faucets

Periodically check for leaks around the outdoor faucet, especially after winter. Inspect the packing nut, washer, and ball valve seat for signs of wear and tear. The timing of your inspections plays a vital role in preserving the functionality of your spigot. 

One of the most critical moments to conduct a thorough check is after winter, especially if you live in a region with freezing temperatures. During winter, the water inside the spigot can freeze, causing a supply pipe to burst, cracks to form, and leaks to develop.

As the frost thaws, these problems become apparent, making a post-winter inspection crucial.


In your well-organized workshop, grab a silicone-based lubricant and apply a decent amount to the stem to prevent it from sticking or becoming difficult to turn. Lubrication is not a one-time fix but rather a preventive maintenance measure that should be conducted regularly. Here are some guidelines on when to apply lubrication to your spigot:

  • Seasonally: Consider lubricating your spigot at the start of each season, or at least twice a year. Seasonal changes in temperature and weather conditions can affect the lubrication and overall performance of the spigot.
  • After Repairs or Replacements: Whenever you perform maintenance tasks that involve disassembling and reassembling the spigot, such as replacing a stem washer, packing washer, or other components, it’s an excellent opportunity to apply lubrication.
  • When You Notice Stiffness: If you ever notice that the spigot handle is becoming harder to turn or that it doesn’t move as smoothly as it used to, this is a clear sign that it’s time to apply lubricant.


In colder climates, it’s crucial to winterize your spigot to prevent freezing and bursting. There are two primary methods to winterize your spigot effectively:

Add a Frost-Proof Water Flow Spigot

One of the most effective ways to protect your outdoor faucet from freezing is to install a frost-proof or freeze-proof spigot. 

These spigots are designed with a longer stem that extends into your home’s heated space, keeping the critical components away from freezing temperatures. Fortunately, the installation process is not as complicated as installing desk dividers. Here’s how to install a frost-proof spigot:

  • Shut Off the Supply: Locate the shutoff gate valve for your spigot and turn it off. This will prevent water flow into the outdoor faucet during the winter months.
  • Drain the Spigot: Open the spigot to allow any remaining water to be drained completely. This step is crucial to prevent a frozen pipe.
  • Replace the Spigot: Remove the existing outdoor faucet and replace it with a frost-proof one. These spigots are typically available at most hardware stores and come with installation instructions.
  • Insulate: Finally, insulate the new faucet and the surrounding area to provide additional protection against cold temperatures.

Use a Hose Bib Cover

If you prefer not to replace your existing outdoor faucet with a frost-proof model, you can still protect it from getting frozen by using a cover. Here’s how to do it:

  • Shut Off the Water Supply: As with the frost-proof outdoor faucet method, turn off the supply of water to the outdoor faucet.
  • Drain the Spigot: Open the outdoor faucet to let out any remaining water.
  • Attach the Cover: Place an outdoor hose bib cover over the outdoor faucet, ensuring it covers the entire outdoor faucet and extends down to the ground. These covers are typically made of insulated materials designed to shield the outdoor faucet from cold air.
  • Secure the Cover: Fasten the cover securely in place to prevent it from blowing away or being removed by animals.

In a Nutshell

A spigot is a vital component of any home and outdoor space, serving as a source of water for a variety of tasks. As with learning the many parts of a bed, understanding how an outdoor faucet works and how the parts of an outdoor faucet work together can help you maintain and troubleshoot it effectively when issues arise.

By following the maintenance tips outlined in this guide, you can ensure that your outdoor faucet remains in excellent working condition for years to come, allowing you to enjoy your DIY projects without interruption. Best of luck!

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