FITCO manufactures NBR, FKM, FFKM, EPDM, HNBR and Silicone O-rings and cords to AS568, ISO 3601 and BS 4518 standards — manufactured in India, exported worldwide to oil & gas, packaging, pumps & valves and industrial manufacturers.
Type the chemical or fluid your seal will contact — we'll tell you which material to specify.
This is our compression moulding press in operation at our Mohali facility. Each production run is logged against a batch record showing the product (O-Ring), material (NBR 70 in this run), exact dimensions (ID 25.00 × CS 2.50mm) and a batch number traceable back to the raw rubber compound. The tray in the foreground holds freshly demoulded O-Rings before inspection and packing.
In-house tooling library covering the most common AS568, Metric and JIS sizes — no new tooling cost for most standard orders.
We mix our own NBR, FKM, EPDM and Silicone compounds on-site, giving us direct control over hardness, cure system and material traceability.
Every production batch is logged with product, material, size, batch number and production date — supporting ISO 9001 and IATF 16949 traceability requirements.
Configure O-rings, X-rings, cords and back-up rings by size, or browse our O-ring kits.
Standard and custom O-rings across the full metric & AS568 cross-section range, with an interactive size selector.
Configure a size → Quad-Ring · AS568Four-lobed profile for dynamic seals — lower friction, no spiral failure, sized to the same AS568 range as O-rings.
Configure a size → 2mm – 16mm CSRound cord stock cut or spliced to length, across all seventeen compounds.
Configure a size → Imperial · JIS · MetricAssorted kits by standard and durometer — NBR 70/90 and Viton 75/90 — for maintenance and MRO benches.
View product → Virgin · Glass · Bronze PTFEAnti-extrusion rings sized to match your O-ring's AS568 dash number, in four PTFE grades.
Configure a size →Click into an industry to see the materials and applications our clients specify most.
Wellhead, valve and pipeline sealing engineered for pressure, sour service and extreme temperature.
02 /10Food-safe, wash-down-rated seals for filling, capping and packaging lines.
03 /10Precision-toleranced dynamic and static seals for centrifugal, gear and diaphragm pumps.
04 /10Cosmetic, personal-care and household product manufacturing seals.
05 /10General manufacturing, hydraulics and pneumatics across heavy and light industry.
06 /10High-purity, USP Class VI seals for drug manufacturing and processing equipment.
07 /10WRAS/NSF-suitable seals for potable water, filtration and treatment plant equipment.
08 /10Fuel-, oil- and coolant-rated seals for automotive and commercial vehicle systems.
09 /10Steam-, oil- and coolant-rated seals for turbines, transformers and power plant equipment.
10 /10Saltwater-, fuel- and weather-resistant seals for marine engines and deck equipment.
General-purpose seal for mineral oils, fuels and hydraulic fluids.
View material → -20°C to +200°CHigh-temperature, chemical-resistant sealing for oil & gas and process industries.
View material → -15°C to +327°CNear-universal chemical resistance for the most demanding process seals.
View material → -40°C to +150°CWater, steam and weather-resistant sealing — the wrong choice for mineral oil.
View material → -30°C to +150°CHigher heat and abrasion resistance than standard NBR for demanding drives.
View material → -60°C to +230°CFood-, medical- and electrically-safe sealing across a wide temperature band.
View material → -60°C to +200°CSilicone's temperature range with added fuel and oil resistance standard silicone doesn't have.
View material → -10°C to +230°CExtreme chemical + heat resistance for sour gas and amine service beyond standard FKM.
View material → -20°C to +200°CGeneral-purpose FKM dipolymer, 66% fluorine — the baseline Viton grade for standard petroleum and fuel contact.
View material → -20°C to +200°CTerpolymer with ~68% fluorine — enhanced resistance to inorganic acids, caustics and harsh industrial fluids.
View material → -15°C to +200°CHigh-fluorine terpolymer (~70%) engineered for oxygenated automotive fuels and alternative fuel blends.
View material → -40°C to +200°CLow-temperature specialist grades — cold flexibility down to -40°C without giving up FKM's fluid resistance.
View material → -20°C to +200°CHigh-hardness FKM engineered to prevent Anti-Explosive/Rapid Gas Decompression failures in high-pressure systems.
View material → -20°C to +230°CThe core Viton Extreme terpolymer — amine and high-pH chemical resistance beyond standard FKM.
View material → -20°C to +230°CPeroxide-cured Viton Extreme with added steam and acid resistance.
View material → -20°C to +230°CThe broadest base-resistance Viton Extreme formulation, for multi-chemical process exposure.
View material → -40°C to +120°CGeneral-purpose weather- and ozone-resistant rubber with moderate oil resistance.
View material →A practical, engineer-first framework for narrowing NBR, FKM, FFKM, EPDM, HNBR and silicone down to the right compound for your media, temperature and pressure.
Read article → Standards · 6 min readDash numbers and metric sizes aren't interchangeable. Here's what engineers switching between American and international O-ring standards need to check before specifying a groove.
Read article → Technical · 8 min readCompression set, extrusion, chemical attack, spiral failure — a field guide to diagnosing a failed seal from what's left of it.
Read article →Send it to our sales engineers — quotes typically returned within one business day, wherever you're ordering from.
