Part number 0529919 is an O-ring specifically designed for the air hose connection on compatible spray guns. This small elastomeric seal creates an airtight seal between the air hose fitting and the gun handle, preventing compressed air leaks that can cause pressure loss and inconsistent spray performance.
| Part Number | 0529919 |
|---|---|
| Part Description | O-ring, air hose, flexspray |
| Fits | HVLP Airspray FlexSpray |
| Condition | New |
Part number 0529919 is a replacement O-ring for the air hose connection on the HVLP Airspray FlexSpray gun. This precision-molded elastomeric seal is installed at the interface where the air hose fitting connects to the gun handle. Its function is to compress under the threaded connection, filling microscopic gaps between the metal surfaces to create a positive, airtight seal.
This O-ring is a common wear item. Over time, exposure to compressed air, temperature cycles, and repeated connection and disconnection can cause the O-ring to flatten, crack, or become brittle. A failed or missing O-ring allows compressed air to escape, resulting in a hissing sound, reduced air pressure at the air cap, and an inconsistent or weak spray pattern.
| Air Seal | Prevents compressed air from leaking at the hose-to-gun connection point |
|---|---|
| Pressure Maintenance | Ensures full system pressure is delivered to the gun for proper atomization |
| Vibration Dampening | Provides a small amount of cushion between metal fittings |
| Audible Air Leak | Hissing sound is heard at the air hose connection during operation |
|---|---|
| Visible Damage | O-ring is cracked, cut, flattened, or has pieces missing |
| Loss of Pressure | Spray pattern is weak or inconsistent due to air volume loss |
| Preventive Maintenance | Replaced during routine service or whenever the hose is disconnected and reconnected |
Part number 0529919 is designed specifically for the air hose connection on the HVLP Airspray FlexSpray gun. This O-ring is a model-specific seal for this particular spray gun system.
| Compatible Models | Component |
|---|---|
| HVLP Airspray FlexSpray | O-ring, air hose, flexspray |
The air hose O-ring is part of the gun's air supply system. These related components are often checked or replaced when servicing air connection issues.
If the O-ring fails repeatedly, inspect the hose fitting for burrs, damage, or corrosion that may be cutting the seals.
The mating surface on the gun handle should be smooth and clean. Damage here can also cause O-ring failure.
A clogged air filter can cause pressure drops that might be mistaken for an air leak. Check filter condition as well.
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