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

$7.35

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Description

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.