Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Cembre FDM20 3017377 is a black 80 Shore A neoprene flat sealing ring measuring 18 mm internally, 24 mm externally and 1.2 mm thick for compatible M20 cable-entry applications.
£0.2475
The Cembre FDM20, manufacturer code 3017377, is a professional flat neoprene sealing ring designed for compatible M20 cable-entry connections. Part of Cembre's FDM metric sealing-ring range, it provides a resilient sealing interface for cable glands, fittings and electrical enclosure entries used in professional electrical and industrial installations.
Manufactured from 80 Shore A neoprene, the FDM20 combines flexibility with the firmness required for compression sealing applications. It has an operating temperature range of -25 °C to +100 °C and a black RAL 9005 finish, providing a durable sealing component for control panels, junction boxes, machinery and other electrical equipment.
With an 18 mm internal diameter, 24 mm external diameter and 1.2 mm thickness, the FDM20 is specifically dimensioned for compatible M20 cable-entry assemblies. Its compact flat annular design makes it suitable for panel builders, machine manufacturers, electrical contractors and maintenance engineers requiring a dependable metric sealing ring.
Flat sealing rings are positioned between compatible mating surfaces within cable-gland and enclosure-entry assemblies. As the components are tightened, the neoprene ring compresses between the surfaces, helping establish a consistent sealing interface while retaining the compact profile required for professional electrical installation hardware.
The Cembre FDM range provides purpose-designed flat sealing rings for metric cable-entry connections. The FDM20 combines M20 compatibility with defined dimensions, 80 Shore A neoprene construction and a broad operating temperature range, making it suitable for panel building, machinery, automation equipment and general industrial electrical installations.
Tick the specs you need, then view products that match.
| Colour | Black | |
|---|---|---|
| Device Type | Sealing washer / O-ring | |
| Material | Rubber / elastomer | |
| Manufacturer | Cembre | |
| Series | FDM Flat Sealing Rings | |
| Model | FDM20 | |
| Manufacturer code | 3017377 | |
| Barcode | 8016692477749 | |
| Product type | Flat sealing ring | |
| Product family | Cable gland accessories | |
| Material | Neoprene | |
| Material hardness | 80 Shore A | |
| Suitable metric connection | M20 | |
| Internal diameter | 18 mm | |
| External diameter | 24 mm | |
| Thickness | 1.2 mm | |
| Colour | Black, RAL 9005 | |
| Minimum operating temperature | -25 °C | |
| Maximum operating temperature | +100 °C | |
| Elongation at break | 100% | |
| ETIM classification | EC001181 Sealing ring | |
| Customs code | 40169300 | |
| Country of manufacture | Italy | |
| Pack quantity | 50 pieces |
The Cembre FDM20 is a flat neoprene sealing ring designed for compatible M20 cable-gland, cable-entry and electrical-enclosure applications.
The FDM20 is designed for compatible M20 metric cable-entry connections.
The FDM20 has an 18 mm internal diameter, 24 mm external diameter and 1.2 mm thickness.
The sealing ring is manufactured from black neoprene with a hardness of 80 Shore A.
The FDM20 is specified for operating temperatures from -25 °C to +100 °C.
Cembre FDM flat sealing rings provide purpose-designed neoprene sealing components for metric cable-entry systems used in electrical enclosures, control panels, industrial machinery and associated electrical equipment.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.