Custom Oval Gaskets Cut to Size — Instant Quote
Custom Oval Gaskets Cut to Size — Instant Quote
An oval gasket is a true elliptical seal — the shape for manway covers, tank hatches, and oval ports. We CNC cut (laser, waterjet, and more) custom oval gaskets to your exact major and minor dimensions in any material, no minimum order, shipped within one business day.
Dimensions You Enter for an Oval Gasket
| Overall length | The long axis of the oval |
| Overall width | The short axis of the oval |
| Thickness | 1/16", 1/8", 3/16", or 1/4" |
| Material | Any elastomer or fiber |
Available in every material we stock — neoprene, silicone, EPDM, Buna-N, Viton, PTFE, cork, and fiber. Additional specs on request.
Common Oval Gasket Applications
- Manway and tank-hatch covers
- Oval inspection ports
- Pressure-vessel access covers
- Oval duct and vent flanges
- Specialty enclosure openings
Oval Gasket FAQs
What is an oval gasket?
An oval gasket is a solid elliptical seal defined by its overall length and width. It is common on manway covers and oval access ports.
How do I measure an oval gasket?
Enter the overall length (long axis) and overall width (short axis). We cut the ellipse to those exact dimensions in your chosen material.
Enter your dimensions in the quote tool above for an instant price on custom oval gaskets from Fastest Gaskets — no minimum order, ships in one business day.
Need help before you order?
Which material should I pick?
Full comparison on our Materials Guide.
- Hot parts with oil or fuel (engines, exhaust) → Viton (FKM)
- Hot parts, no oil (ovens, HVAC) → Silicone
- Oil or fuel (pumps, hydraulics, petroleum) → Buna-N (Nitrile) — or Viton for higher heat
- Water / outdoor / sun → EPDM
- General automotive or light oil → Neoprene
- Chemicals / aggressive fluids → PTFE (Teflon) — or Viton for high heat plus chemicals
- Soft seal / uneven surfaces / low pressure → Cork blends
Not sure which material fits? Email us at fastestgaskets@gmail.com.
We CNC cut (laser, waterjet, and more) to ±0.015″. Up to 32.5″ × 32.5″ for most materials; the quote tool shows the exact limit for the one you pick. Ships in one business day. Large orders may take longer.
How to measure
- Measure the outside size — diameter for rounds, or length × width for rectangles and squares.
- Measure the inside opening and any holes (ID, bolt holes, bolt circle if it is a flange).
- Note the thickness you need — pick it in the quoter.
- Enter sizes in inches.
- Already have a drawing? Upload a DXF for an instant price.
More detail: Measuring Guide. Materials: Materials Guide.