OEM 0.5mm replacement needle, part number 40461, for GHAD-39 and GHAD-68. The everyday workhorse size — primers, base coats, clear coats, terrain. Multiple polishing stages produce consistent, clean paint release. Note: separate SKU from the unlabelled 0.5mm needle also listed.
Where 0.5mm Sits
Size
Best For
0.35mm
Panel lines, pre-shading, miniatures
0.5mm ← you are here
Primers, base coats, clear coats, terrain
0.7mm+
Large area, automotive
When to Replace
⚠️ Tip blunt — spatter or uneven spray after correct pressure
⚠️ Bent needle — asymmetric pattern
⚠️ Surface scratches — intermittent flow
🔄 Every 50–100h, or always when replacing nozzle
⚠️ Heads Up
Advanced Series only — does not fit Ace (GHAC) or Premium (GHPM) models.
Replace needle and nozzle as a matched pair — 0.5mm needle requires 0.5mm nozzle.
Hobby Heaven
By Hobbyists. For Hobbyists.
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Notes · Q & A
Will this spare part fit my airbrush?+
Check the exact model name against the Compatible with row on the product page. Parts from the same maker are not automatically interchangeable, even when they look similar or fit different assemblies on one model.
How do I work out which replacement part I need?+
Air or paint leakage can involve more than one sealing component, so the symptom alone does not identify the exact spare. Compare the part name and Format row, then match the Compatible with entry to the model printed on your airbrush.
Are these genuine manufacturer parts?+
Yes. The Gaahleri listings contain the maker’s own parts supplied through its channel, while the Iwata replacements are identified as genuine OEM parts or genuine spares.
How many parts come in the pack?+
Pack quantities vary between listings. Check the Pieces row for the confirmed count; where that field is absent, the manufacturer has not published a quantity.
Are measurements available for matching seals or threaded parts?+
The manufacturers do not publish seal diameters, cord thicknesses or thread measurements for these listings. Identify the replacement through its part code, Format and exact Compatible with entry rather than by visual estimation.
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Notes · Logistics
Shipping
Orders placed before 3pm (Mon–Fri) are dispatched the same day. UK delivery is by Royal Mail 24 Tracked. Free UK delivery on orders over £70. International delivery available via Royal Mail International Tracked or courier.
Returns
If you're not happy with your purchase, contact us within 30 days for a full refund or exchange. Items must be unused and in original packaging.