Sealing Elements
Complete range of O-rings, bonded seals (dowty seals), cutting rings, and retaining nuts for hydraulic fitting assembly and maintenance.
Cutting Rings (Ferrules)
Hardened cutting rings for DIN2353 bite-type fittings.
StandardDIN2353
MaterialCase-hardened steel
Sizes4mm to 42mm OD
O-Rings & Bonded Seals
NBR and FKM O-rings, bonded seals (dowty washers) for hydraulic fitting sealing.
MaterialsNBR (-30°C to +100°C) / FKM (-20°C to +200°C)
StandardsDIN 3771 / AS568
Frequently Asked Questions
Do I need to replace the cutting ring when reassembling a DIN fitting?
No, DIN2353 cutting rings can be reused multiple times if the tube and ring are undamaged. Inspect the cutting edge for deformation before reuse. We recommend replacing the O-ring seal (if applicable) during reassembly.