Grease Fittings

SkyGeek is sleek because we know grease fittings. Also known as grease nipples or Zerk fittings, grease fittings are simple in function: they are specifically designed to fit with a grease gun and are thus used when lubrication application is required.

Understanding grease fittings is often a matter of identifying four features: its angle, its material, its finish, its style. Besides a straight design, grease fittings come in a variety of angled configurations: 30-degree, 45-degree, and 90-degree to name a few. They are usually made of metal such as brass and (stainless) steel and contain finishes including nickel and zinc (yellow and dichromate). Additionally, grease fittings come in a variety of styles including but not limited to: ball check, (extra) long, pin type, and self-tapping.

Grease fittings come in a variety of sizes as well. With so much variety, standardization was necessary. That's why many conform to U.S. military specifications. Whether it's Military Standard (MS) or National Aerospace Standard (NAS), SkyGeek has those that fit your needs. Click on the corresponding grease fittings for more details.


Frequently Asked Questions

What types of grease fittings does SkyGeek offer?
SkyGeek offers a variety of grease fittings, including standard, metric, and stainless steel options, suitable for various lubrication applications.
How do I choose the correct grease fitting for my application?
Consider factors such as thread size, angle, material, and the specific requirements of your equipment to select the appropriate grease fitting.
How do I grease a zerk fitting?
Greasing a Zerk fitting is a simple process that keeps moving parts properly lubricated. Start by cleaning the fitting to remove dirt and old grease, then securely attach the grease gun coupler. Pump grease slowly until fresh grease appears at the joint, then carefully remove the gun and wipe away any excess to prevent buildup.
How do I install a grease fitting
Properly installing a grease fitting ensures smooth lubrication and long-term equipment performance. Choose the correct fitting for your application, clean the installation hole, and thread the fitting in securely—hand-tightening first, then using a wrench if needed. To ensure functionality, pump a small amount of grease through it; if there's a blockage, troubleshooting may be required. For a step-by-step breakdown, check out the Comprehensive Guide to Installing Grease Fittings for Aviation Equipment.