#6 Aluminum Crushwashers

The AEROQUIP #6 Aluminum Crushwashers (FCM3514) are precision sealing components designed specifically for AN-6 hydraulic and pneumatic connections. Supplied as a set of five, these natural aluminum crush washers are engineered to create a reliable, leak-free seal at high-pressure connection points. They are essential for technicians and mechanics working in various applications, including aircraft fuel delivery and off-road recovery equipment.

These crush washers deform plastically when an AN fitting is torqued to specification, conforming to the mating surfaces and filling microscopic gaps to prevent fluid seepage. The aluminum construction offers weight savings and corrosion resistance compared to steel alternatives, making them suitable for environments where exposure to moisture and corrosive elements is a concern. However, it is important to note that while aluminum is resistant to corrosion, it can still experience galvanic corrosion when in contact with dissimilar metals.

These washers are particularly beneficial for applications in aerospace, marine, and custom hydraulic installations. Single-use crush washers must be replaced each time a fitting is disconnected and reconnected to maintain seal integrity, ensuring that the system remains leak-free under operational stress. This five-pack provides a convenient supply for ongoing maintenance and repairs.