Description
Overview:
The O-Ring Regulation Safety is a circular sealing ring for Nilfisk pressure washers, supplied as a Genuine Nilfisk part (OEM No. 301003032). Made from tough elastomer rubber, it creates a tight, pressure-resistant seal within the regulation/safety assembly and related fittings to prevent leaks and pressure loss. Designed for professional and commercial machines, it is suitable for the Nilfisk MC 4M cold-water and MH 3M hot-water ranges among other listed models. A sound seal protects internal components, preserves cleaning performance, and supports safe operation in high-pressure systems. This replacement ring restores correct compression in grooves and housings and offers a straightforward, cost-effective fix when the original seal becomes worn, flattened, nicked, or perished through regular use.
Key Features:
- Genuine Nilfisk OEM part for assured compatibility and reliability
- Forms a dependable seal to prevent water bypass and pressure drop
- Durable rubber construction suited to high-pressure washer duty
- Compatible with MC 4M and MH 3M families plus listed variants
- Supports safe operation by maintaining correct regulator performance
- Quick, simple replacement to minimise downtime during maintenance
- Resists wear from vibration and temperature cycling in daily use
- Black circular profile to seat neatly in standard O-ring grooves
- Suitable for routine servicing and preventative maintenance schedules
Typical Applications:
Used during routine servicing or repairs of Nilfisk pressure washers to refresh seals in regulation/safety components, pump interfaces, valves, or hose and lance connections where this size is specified. Helps resolve seepage at joints, air ingress causing foaming, fluctuating pressure, or loss of pressure under load. Suitable for workshops, hire fleets, agriculture, facilities maintenance, and mobile cleaning operations.
Also known as:
Seal ring, rubber sealing ring, regulator seal, safety valve seal, packing ring, round sealing gasket, pump seal ring, washer seal for Nilfisk equipment.
Fits Models:
4M-160/720, 4M160720, MC 4M, MC 4M-100/770, MC 4M-140/620, MC 4M-140/620 XT, MC4M, MH 3M, MH3M, MH3M-100/600PA230/1/50, NEPTUNE 2 SPECIAL / MH 2M, POSEIDON 4, SC UNO 4M-5M-6P-7P-8P, UNO 4M-140/620, UNO4M140620
Product Specifications
| L&S Part No. | NIL301003032 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Nilfisk |
| OEM No. | 301003032 |
| Unit of Sale | 1 |
| Machine Type | Pressure Washers |
| Fits Brands | Nilfisk |
| Key Features | - Genuine Nilfisk OEM part ensures compatibility and reliability - Durable elastomer rubber for high-pressure washer use - Compatible with MC 4M and MH 3M models - Prevents water bypass and pressure drop - Quick replacement reduces maintenance downtime |
| Fits Models | MC 4M - 100/770 | MC 4M - 140/620 | MC 4M - 140/620 XT | MH 3M-100/600 PA 230/1/50 | SC UNO 4M-140/620 PS 230/1/50 | SC UNO 4M-160/720 PS 400/3/50 |
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