Alm Crush Washers 3an 10pk

The Alm Crush Washers 3AN 10pk by FRAGOLA are essential sealing components for any serious fuel system or hydraulic line assembly. These crush washers create a reliable, leak-free connection at AN (Army-Navy) fittings—the industry standard for high-pressure automotive applications. Whether you're rebuilding a fuel injection system, plumbing a custom fuel cell, or assembling braided stainless steel fuel and coolant lines, these washers are the critical interface that prevents costly fuel or fluid leaks under pressure and vibration.

Crush washers work by deforming under the clamping load of an AN fitting's nut, creating a metal-to-metal seal that accommodates minor surface irregularities and thermal expansion cycles common in engine bays. The 3AN size (3/16-inch nominal bore) is ideal for fuel, coolant, and brake line applications on street rods, performance vehicles, and engine swaps where precision hydraulic connections are non-negotiable. The 10-pack provides ample inventory for complete fuel system builds, repairs, and future modifications—crucial when multiple fittings and re-seating demands arise during tuning or troubleshooting. FRAGOLA's crush washers maintain dimensional consistency and material hardness to ensure repeatable, secure seals across all your connections.

Mechanics and engine builders rely on these washers for fuel system fabrication, carburetor fuel line routing, transmission cooler plumbing, and any custom hydraulic or pneumatic line assembly requiring AN fittings. The compact 10-pack (0.05 lbs total) fits easily in any tool drawer and ensures you never run short when assembling or reassembling fuel rails, regulators, filters, or remote oil coolers. Always use a fresh crush washer each time you disconnect and reconnect an AN fitting—reusing washers risks leaks and system contamination. Stock this essential consumable in your shop and keep spares in your vehicle's emergency kit for roadside fuel system repairs on the track or trail.