3/4 ID #8 O-rings 10pk

The 3/4 ID #8 O-rings 10pk by FRAGOLA is an essential fluid-system component designed for hydraulic, fuel, and coolant line applications across industrial, automotive, and motorsport environments. These o-rings seal threaded AN connections, preventing leakage in high-pressure systems where reliability is non-negotiable. Whether you're assembling a custom fuel system, maintaining aircraft hydraulics, or rebuilding race-car plumbing, this 10-pack provides the redundancy and spares every technician needs on hand.

Each o-ring is manufactured from Viton (fluoroelastomer), a premium synthetic rubber that resists fuel, oil, coolant, and extreme temperatures far better than standard Nitrile or EPDM compounds. The 3/4-inch inner diameter and #8 AN designation ensure compatibility with 1/2-inch AN fittings—the industry-standard measurement for mid-range hydraulic and fuel lines. Viton's superior chemical compatibility and thermal stability (typically -20°F to 400°F) make it the material of choice for performance systems, vintage restoration work, and applications requiring long-term reliability under stress.

This set benefits restorers, hot-rodders, hydraulic technicians, and OEM service departments who cannot afford line failures. Installation is straightforward: place one o-ring in the groove of the AN male fitting, then thread into the female counterpart—hand-tight plus 1/4 turn creates a leak-free seal. Having ten in stock eliminates downtime from a single failed seal and accommodates multiple connection points across fuel rails, power steering systems, and brake lines. FRAGOLA's reputation for precision manufacturing ensures concentricity and durometer consistency across every ring in the pack.