IWN-0802 — Nozzle (N5) 0.5mm with O-Ring for Neo BCN Siphon-Feed Airbrush

Precision-machined fluid nozzle with factory-fitted o-ring. Factory replacement for the Neo for Iwata BCN.

Why This Nozzle

✦ OEM Iwata quality — precision-machined nozzle with factory-correct bore geometry

✦ O-ring pre-fitted — no fiddly seal installation, ready to fit straight out of the pack

✦ Restores factory spray pattern — fixes leaks, erratic atomisation, and uneven spray caused by a worn or damaged nozzle

✦ Perfect match with N5 needle — designed as a system for consistent, predictable performance

✦ Genuine Iwata part — not a generic aftermarket gamble

Product Description

The N5 nozzle (IWN-0802 / N0802) is the original 0.5mm fluid nozzle for the Neo for Iwata BCN siphon-feed airbrush. It comes with the o-ring already factory-fitted — ready to install without the notoriously tricky task of seating a tiny seal yourself.

The nozzle and needle together form the heart of your airbrush — they shape the paint stream, control atomisation, and determine your spray pattern. When a nozzle becomes worn, cracked, or deformed (often by a previously bent needle pressing against it), even a brand-new needle can't deliver a clean pattern. Replacing the nozzle restores the precise bore geometry your BCN needs.

The included o-ring seals the nozzle to the airbrush body, preventing air and paint leaks at the head. Shops and experienced users strongly recommend buying the nozzle with the o-ring pre-fitted rather than attempting to install a separate seal — it's an extremely fiddly job that risks damaging both parts.

Specifications

What's in the Box

1 × Iwata N5 Fluid Nozzle 0.5mm with factory-fitted o-ring (IWN-0802) in original Iwata packaging.

Compatibility

✔ Direct fit: Neo for Iwata BCN (siphon-feed airbrush)

🔄 Conversion fit: Neo for Iwata CN (gravity-feed) — requires additional N5 needle (IWN-0752), N5 nozzle cap, and appropriate head base

✘ Does NOT fit: Neo TRN1, Neo TRN2, Eclipse, Revolution, Hi-Line, Custom Micron, or any other Iwata series

Pairs with: N5 Needle 0.5mm (IWN-0752) — for best results, replace both the nozzle and needle together. A worn nozzle can be deformed by a previously bent needle, and vice versa.

Pro Tips — Nozzle Replacement Done Right

Use a proper nozzle wrench. Never use pliers, the basic spanner from the airbrush kit, or your fingers at an awkward angle. A dedicated Iwata nozzle wrench reduces the risk of cracking or cross-threading.

Don't overtighten. The nozzle only needs to be snug — finger-tight with a quarter-turn from the wrench. Over-tightening is one of the most common causes of cracked nozzles.

Replace needle and nozzle together. If your old needle was bent, it likely deformed the nozzle bore into an oval shape. Fitting a new nozzle with the old bent needle — or a new needle into a worn nozzle — won't give you a clean pattern.

Don't remove the nozzle unless necessary. Routine cleaning rarely requires nozzle removal. Only take it out if it's visibly damaged, irreversibly clogged, or you're replacing it.

Never push anything into the nozzle from the front. No pins, no wire, no interdental brushes forced through the bore. Clean from the back only — or soak the entire head assembly in airbrush cleaner.

Worth Knowing

This nozzle is designed for the Neo BCN. It does not drop into the Neo TRN1, TRN2, or other Iwata series — double-check your airbrush model before ordering.

A new nozzle alone won't fix problems caused by a bent needle, worn needle packing, or clogged paint channels — those issues need addressing separately.

Nozzle replacement requires care and the right tool. If you're not confident working with small, delicate airbrush parts, consider having it fitted by an experienced user or service centre.

At 0.5mm, this nozzle is designed for coverage work — priming, basecoating, varnishing. For ultra-fine detail and minimal overspray, a 0.35mm (N3) setup is the better choice.

Ideal For

✦ Replacing a cracked, worn, or deformed nozzle on your Neo BCN

✦ Restoring factory spray performance after needle damage (replace both together)

✦ Converting a Neo CN from 0.35mm to a 0.5mm coverage setup

✦ Keeping a spare on hand — nozzles are the most common casualty of airbrush maintenance mishaps