#3 O-Ring

The #3 O-Ring is a critical hydraulic and pneumatic sealing component designed for reliable, leak-free connections in fluid power systems and aerospace applications. Available as a convenient set of 10, this AN-standard o-ring serves technicians, engineers, and maintenance professionals who demand dependable seals in high-pressure environments. Whether you're rebuilding hydraulic cylinders, servicing aircraft fuel systems, or maintaining industrial equipment, having a supply of properly sized o-rings on hand prevents downtime and ensures system integrity.

Manufactured by AEROQUIP, a trusted leader in fluid power connections, the #3 O-Ring is constructed from durable nitrile material, which offers excellent resistance to petroleum-based fluids, water, and moderate temperature fluctuations. Nitrile's proven elastomer formulation maintains consistent compression set properties across repeated cycling, ensuring the seal remains effective over extended service life. The AN (Air Force-Navy) specification designation guarantees precise dimensional tolerances, allowing the o-ring to seat properly in standard grooves and ports used throughout military, aerospace, and industrial equipment. At just 0.025 lbs per piece, the complete 10-piece set is lightweight and portable for field work or shop storage.

Professionals across hydraulic maintenance, aviation mechanics, and equipment repair benefit most from stocking this set as part of their seal replacement inventory. The nitrile material performs reliably in both static and dynamic sealing applications, making it ideal for pump assemblies, valve bodies, and actuator cylinders. Installation is straightforward: simply remove the worn seal and replace it with the new o-ring, ensuring the groove is clean and dry before seating. The set of 10 provides spare capacity for multiple repairs or future maintenance cycles, reducing the need for frequent reordering and keeping your operation running smoothly.