#8 Aluminum Crushwashers

AEROQUIP #8 Aluminum Crushwashers (FCM3515) are precision sealing components designed for use in high-pressure hydraulic and pneumatic systems where AN-8 (JIC 37° flared) fittings are employed. Supplied as a set of five crushwashers, this product serves as a critical maintenance and installation item for technicians, mechanics, and systems operators who work with hydraulic equipment, aerospace applications, automotive performance systems, and industrial fluid power assemblies.

Crushwashers function as single-use compression seals positioned between the flared fitting cone and the port face to prevent leakage under pressure. The aluminum construction in this AN-8 size offers a balance of light weight and adequate strength for standard pressure applications, while the natural (unplated) finish provides cost-effectiveness for non-corrosive environments. When torqued properly, the washer deforms slightly to conform to the fitting geometry, creating a reliable seal that must be replaced each time the connection is broken. The AN-8 designation indicates compatibility with 8-sized JIC ports, commonly found in mid-range pressure circuits.

This five-pack format is ideal for maintenance technicians, field service crews, and shops that service hydraulic equipment regularly. Having a supply of AN-8 crushwashers on hand eliminates downtime waiting for parts and ensures proper sealing at every connection point. Whether assembling custom hydraulic systems, performing preventive maintenance on existing equipment, or replacing worn components, a quality crushwasher set is an essential consumable for anyone working with JIC-flared connections in industrial, automotive, or mobile equipment contexts.