Graco 15B549 End Nut
The Graco 15B549 End Nut is a durable OEM fastener used to secure the tip and guard assembly on compatible Graco spray guns.
- Ensures proper tip alignment
- Prevents loosening during spraying
- High-strength metal construction
- Ideal replacement for worn or damaged end nuts
Detailed Overview of the Graco 15B549 End Nut
Compatible Spray Guns
- Graco Contractor II Gun
- Graco FTX / FTX-E Spray Guns
Product Description
The Graco 15B549 End Nut is an OEM-grade fastening component used on the rear section of Graco spray guns. It secures the fluid orifice/guard assembly and helps maintain proper tip alignment under high-pressure conditions.
Built from durable metal, this nut withstands repeated tightening and loosening, ensuring a reliable seal and maintaining the gun’s structural integrity during maintenance or tip changes.
Key Features
| Part Number | 15B549 |
|---|---|
| Part Name | End Nut (Nut, End) |
| Use Area | Rear section of Graco spray guns (tip / guard assembly) |
| Compatibility | Genuine Graco replacement for Contractor & FTX / FTX-E guns |
| Material | High-durability metal designed for repeated wear |
Why This Part Is Important
The 15B549 nut holds the front guard and fluid tip firmly in place. A worn, stripped, or damaged end nut can lead to a loose tip, poor spray pattern, or even fluid leaks. Replacing it with a proper OEM nut preserves performance, safety, and reliability.
Maintenance & Replacement Tips
- Inspect the nut whenever replacing spray tips or guards.
- Replace if you notice rounded edges, stripped threads, or difficulty securing the guard.
- Hand-tighten carefully, then finish with the proper torque, avoiding over-tightening.
- Lubricate the threads lightly (if recommended) when reassembling to protect sealing surfaces.
Frequently Asked Questions
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