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AirCraft Air Cap Nut For AB17G Spray Gun (SG AB17G-14)
At a Glance: Replacement knurled retaining nut for the AB17G—secures key spray gun components for stable, consistent spraying.
Sometimes the smallest hardware causes the biggest headaches. The AirCraft SG AB17G-14 Nut is a replacement retaining nut designed for the AB17G spray gun, used to secure and hold key front-end components firmly in place. If a nut is damaged, cross-threaded, missing, or no longer tightening correctly, you can end up with misalignment, poor sealing, air leaks or an inconsistent spray pattern. This replacement nut helps restore a snug, reliable fit so your AB17G stays properly assembled and performs the way it should.
Secure Fit, Better Spray: a retaining nut that keeps your AB17G aligned and sealed
Retaining nuts help keep spray gun assemblies centred and tightened to the correct compression on seals and washers. A worn or damaged nut can prevent proper sealing and lead to performance issues—replacing it is a simple, cost-effective fix.
Extra Information
Start threads by hand first to avoid cross-threading, then tighten gently—snug is usually enough.
If you notice leaking after fitting, inspect related seals (O-rings/washers) and mating surfaces for dirt or damage.
Pro Tip
When reinstalling the nut, clean the threads and apply a tiny amount of suitable lubricant if recommended. Clean threads tighten smoothly and help you avoid overtightening that can crush seals or damage parts.
Features
Replacement retaining nut Designed to suit the AirCraft AB17G spray gun
Knurled grip design Easier hand tightening and removal during servicing
Helps maintain correct assembly Keeps components secure and properly aligned
Service-friendly spare part Ideal replacement for damaged, worn or missing nuts
Benefits
More reliable sealing: Proper tightening helps seals and washers seat correctly
Consistent spray performance: Secure components help maintain a stable fan pattern and atomisation
Less downtime: Quick replacement to get your spray gun back into service
Prevents thread damage: Replacing a cross-threaded nut protects mating parts from further wear
Safety
Disconnect from the air supply before disassembly and parts replacement.
Wear eye protection when handling solvents and small components.
Do not overtighten parts—excess force can damage threads, crush seals and affect spray performance.
After reassembly, test at low pressure first to confirm proper sealing and safe operation.
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