Compressed air nipple identification guide

Compressed air nipples – also known as pneumatic plugs, air hose fittings, or air hose nipples – come in several standards, each with small profile variations. This guide, featuring clear illustrations of each nipple profile, helps you identify the correct standard by matching the profile shape with your air hose nipple.

Whether you need to replace a worn air hose nipple, match a male pneumatic plug to your existing quick coupler, or simply understand the differences between standards, this visual reference makes it easier to determine the right component for your system.

How to identify your compressed air nipple or pneumatic plug:

1. Check the marking – look for engraved part or serial numbers on the nipple or plug.
2. Search the number on the manufacturer’s website or catalog.
3. Measure the outer diameter of the profile using a caliper.
4. Compare the profile shape with the illustrations in this guide.
5. Confirm the standard before ordering a replacement.