Harder & Steenbeck 0.45 mm nozzle with seal — 702384 OEM replacement for Ultra & Evolution, precise atomization

The Harder & Steenbeck 2024 0.45 mm nozzle with seal (model 702384) is a direct-fit replacement tip that restores precise spray control and reliable sealing for compatible H&S airbrushes.

This 2024-series 0.45 mm nozzle is an OEM part designed for use with Harder & Steenbeck Ultra and Evolution lines, Giraldez Infinity, Kyiv Infinity and other compatible models. It replaces worn or damaged nozzles to recover consistent atomization and pattern stability, while the integrated seal helps prevent air or paint leaks. The part is made to the manufacturer’s tolerances so fit, finish and performance match original specifications.

Will this nozzle fit my specific Harder & Steenbeck airbrush?

Yes — 702384 is compatible with a wide range of H&S 2024 and older series. Check your model against the compatibility list to confirm a correct match before ordering.

• Fits: ULTRA 2024, EVOLUTION 2024, Giraldez Infinity
• Also fits: Ultra 2006–2023 and Evolution 1998–2023
• Works with all Infinity models 2007–2023 and Kyiv Infinity
• Manufacturer part number: 702384 for exact identification

How does the 0.45 mm nozzle affect spray performance?

A 0.45 mm orifice balances fine detail and medium coverage, making it a versatile choice for many hobby and professional applications. The nozzle produces a controlled, even atomization that supports smooth lines and consistent laydown at moderate pressures.

• 0.45 mm orifice for medium-fine detailing and fills
• Stable atomization across a range of air pressures
• Reduced clogging risk compared to ultra-fine tips when using slightly heavier paints
• Integrated seal enhances repeatable nozzle seating and prevents leaks

What maintenance or installation steps should I follow?

Installation is straightforward but benefits from careful handling: clean the airbrush, remove the old nozzle, then hand-thread the new nozzle until snug. Avoid overtightening; use the manufacturer’s recommendations and reassemble with the seal properly seated.

• Clean airbrush thoroughly before removing the old nozzle
• Thread the new nozzle by hand, then secure to specification — do not over-torque
• Verify the seal sits flush to prevent leaks and performance loss
• Test spray with water or air to confirm correct atomization

Can I use this nozzle with different paint types?

The 0.45 mm nozzle handles a variety of water-based and solvent-based hobby paints when they are properly thinned for airbrushing. It offers flexibility for users switching between detail work and light coverage tasks, but always follow paint thinning and cleaning guidance for best results.

• Suitable for thinned acrylics, enamels and model paints at recommended viscosities
• Less prone to clogging than ultra-fine tips when using slightly thicker mixtures
• Clean promptly after use to preserve the seating seal and nozzle bore
• Run a cleaning solution through the nozzle if switching paint types

Who is this for: This OEM 0.45 mm nozzle with seal (702384) is ideal for model makers, illustrators, makeup artists and small-scale painters who already own compatible Harder & Steenbeck airbrushes and need a reliable replacement part. It’s particularly useful for users seeking consistent mid-range tip performance — those who require a balance between fine detail control and efficient area coverage. Technicians maintaining a studio airbrush fleet will value the factory fit and the included sealing feature for preventing leaks and restoring factory performance.