FSC 2640 - Tire Rebuilding and Tire and Tube Repair Materials: What You Should Stock Up On

February 25, 2025 robert bell Aerospace

Federal Supply Classes (FSCs) are an indispensable aspect of aviation and defense procurement, providing a standardized means of defining and classifying various parts and systems that are traded across the globe. This helps purchasers easily identify and source the parts that their operations demand, whether it be for manufacturing, repairs, replacements, or any other purpose. In this blog, we will provide a brief introduction to FSC 2640, a class which comprises the various tire rebuilding and tire tube repair materials that are necessary for maintaining the airworthiness of aircraft and their tire assemblies.

What are Tire Rebuilding and Tire and Tube Repair Materials?

Tire rebuilding and tire and tube repair materials are essential for maintaining the airworthiness of aircraft tires, facilitating their repair and retreading, as well as the repair of minor damage to tubes, to extend their lifespan and reduce the risk of failure. Aircraft tires are often subject to extreme stress during operations, a result of the impact forces and heat that is generated during landing and takeoff. As a result, the regular inspection, maintenance, rebuilding, and repairing of assemblies are all essential practices for ensuring continued performance and reliability.

Key Part Types That Fall Under FSC 2640

Tire Repair Patches

Tire repair patches are used to repair punctures and other minor damage to tire casings. Typically made from a durable rubber compound, patches are applied to the inside of the tire to seal the damage area.

Tire Rebuilding Materials

Tire rebuilding materials are used to retread worn tires, the process involving the removal of old treading with various tools before carefully applying a new one. Rebuilding tires extends the lifespan of the assembly, reducing costs associated with complete replacement.

Tube Repair Kits

Tube repair kits contain the materials needed to repair punctures that may occur in inner tubes. These kits typically include patches, adhesive, and tools that facilitate quick and easy repairs of minor damages.

Tire Sealants

Tire sealants are used to prevent air leaks that source from punctures. Generally, sealants are injected into the tire itself to form a seal around the damaged area, extending its service life until a more thorough repair or replacement can be conducted.

Tire Cements and Adhesives

Tire cements and adhesives are relied on for bonding patches and other repair materials to tires and tubes. They are specifically formulated to withstand the stresses of flight operations, as proper adhesion is absolutely essential for any successful repair to be carried out.

Considerations for Procurement

When it comes time to begin sourcing the tire rebuilding and tube repair materials your operations demand, there are a number of considerations that should be made to ensure a proper investment:

Material Compatibility

To avoid the risk of premature failure of any repair job, it is essential to choose materials that are compatible with the type of tire or tube being repaired.

Quality and Reliability

The quality and reliability of the repair materials chosen is non-negotiable, as substandard solutions can compromise the safety of the tire. As a result, procurement teams must prioritize quality to ensure airworthiness.

Shelf Life

Some tire repair materials have a limited shelf life, so it is necessary to consider how long materials will last before they are needed during the purchasing process. Proper storage can have a major effect on this, with adequate conditions being essential for maintaining the integrity of the materials.

The Importance of Proper Training

Any personnel who are tasked with performing tire and tube repairs should have ample training on how to safely handle all materials, tools, and equipment. This will ensure that all correct procedures are carried out in accordance with manufacturer specifications and regulations, promoting safe and effective repairs.

Expansive NSN Procurement: Your Partner in Aviation Maintenance

Belonging to the ASAP Semiconductor family of purchasing platforms, Expansive NSN Procurement is a one-stop shop for customers seeking competitive fulfillment options on quality assured tire rebuilding and tire and tube repair materials. Across our website, you will find a wide range of parts that fall under FSC 2640, our current stock including tire repair patches, tire rebuilding materials, tube repair kits, tire sealants, and tire cements and adhesives that have been sourced from suppliers and manufacturers we trust. We understand the critical nature of these components and are committed to providing fair-market pricing and timely delivery with each order, so do not hesitate to get in touch today!


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