5Pcs bulkhead Push-Connect Fitting, Nickel Brass for Panel (4mm) Straight connector, pneumatic quick connector equipment enclosures and industrial piping.

[Sealed Bulkhead] The bulkhead fitting features a long threaded body and locking nut, providing a leak‑free passage from one side to the other, organising and protecting tubing at the penetration point. [Specifications] 0‑2.5 MPa. Operating temperature: ‑20‑120°C. Compatible tubing: PU / nylon / PE. [Connection Ring] Both ends of the push‑in fitting are equipped with stainless steel gripping collets and release rings. Simply push the tubing fully until it contacts the internal stop, which locks the line in place with a secure vibration‑resistant grip and maintains a seal even under pressure fluctuations. [Material] Forged from solid brass, this fitting resists condensation, compressor oil vapour, and strong cleaning agents commonly found in factories, garages, and food processing lines. The nickel‑plated finish adds extra oxidation protection and a smooth, low‑friction surface. [High‑Flow Straight Bore] The air passage bore matches the tubing inner diameter exactly, avoiding the power loss and sluggish response that can result from undersized bulkhead fittings on critical branch lines.