Description
Keep your hydraulic and fuel lines locked down tight with the Aeroquip FCM5556 #3 Locknut — built for performance enthusiasts who refuse to compromise on quality. These black anodized aluminum locknuts deliver a clean, corrosion-resistant finish that looks as good as it performs. Sold as a pair, they’re ready to tackle your next build right out of the box.
- Part Number: FCM5556
- Type: Bulkhead fitting nut
- Size: 3 AN
- Material: Aluminum
- Finish: Black anodized
- Quantity: Sold as a pair
- Brand: Aeroquip
Whether you’re plumbing a race car, street rod, or high-performance build, Aeroquip has been a trusted name in fluid system components for decades. The FCM5556 locknuts are lightweight yet incredibly durable, making them a smart choice for anyone serious about their build. Grab a set and finish your project with the confidence that only genuine Aeroquip hardware can deliver.






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