Custom O-Rings — Non-Standard Sizes & Compounds
FITCO manufactures custom O-Rings to any ID and cross-section combination not covered by standard catalogues, in any of our 17 elastomer compounds. Our in-house tooling library of over 2,000 molds covers a wide range of sizes without new tooling cost — and for sizes outside that library, we quote custom mold fabrication with a lead time of 3–6 weeks depending on complexity.
To enquire for a custom O-Ring, send us: Inside Diameter (ID) × Cross-Section (CS) in mm or inches, elastomer compound, hardness (Shore A), quantity and any applicable standard or drawing. We will confirm tooling availability and unit price by return.
Enter your exact dimensions
Enter any ID and CS in mm — we'll calculate OD and confirm tooling availability.
Need these O-Rings from India?
O-Ring manufacturer India since 1995. Send your standard, size and quantity for a fast quote.