3.17 × 1.78 mm (0.125 × 0.070 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 3.17 × 1.78 mm (0.125 × 0.070 in)
O-ring measurement guide in mm and inch
    3.17 × 1.78 mm (0.125 × 0.070 in) FKM O-ring
    O-ring size reference in mm and inch
    FKM O-ring product detail for 3.17 × 1.78 mm (0.125 × 0.070 in)
    O-ring measurement guide in mm and inch
3.17 × 1.78 mm (0.125 × 0.070 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 3.17 × 1.78 mm (0.125 × 0.070 in)
O-ring measurement guide in mm and inch
3.17 × 1.78 mm (0.125 × 0.070 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 3.17 × 1.78 mm (0.125 × 0.070 in)
O-ring measurement guide in mm and inch
    3.17 × 1.78 mm (0.125 × 0.070 in) FKM O-ring
    O-ring size reference in mm and inch
    FKM O-ring product detail for 3.17 × 1.78 mm (0.125 × 0.070 in)
    O-ring measurement guide in mm and inch
3.17 × 1.78 mm (0.125 × 0.070 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 3.17 × 1.78 mm (0.125 × 0.070 in)
O-ring measurement guide in mm and inch

O-Ring 3.17 × 1.78 mm · FKM · 75A

3.17 × 1.78 mmFKM75A

This specification requires manual confirmation before ordering. Contact us to confirm availability, MOQ, and pricing.

Technical review required

This specification has more than one valid commercial reference or needs manual pricing review. Confirm quantity and application details before ordering.

Request Technical Review
Need Help?
Custom by Size or Drawing MOQ 1000 pcs support@oxxring.com

Quick Specifications

Inner Diameter (ID)3.17 mm
Cross Section (CS)1.78 mm
MaterialFKM
Hardness75A
Purchase ModeManual confirmation required
Pack OptionsContact us
Manual confirmation required before ordering

Not sure about the size?

Measure ID and CS

Match the Inner Diameter (ID) and Cross Section (CS) to your old O-ring before ordering.

Then choose the pack size that fits your needs.

View Size Guide How to Measure

Is FKM right for your needs?

FKM is a strong option for higher temperatures, chemicals, and fuel exposure where standard rubber is not enough.

Good for

  • Fuel & aggressive fluids
  • High temperature sealing
  • Chemical resistance

Not recommended for

  • Low-temperature flexibility
  • Hot water / steam service

Common Applications

Fuel systemsChemical handlingHigh-heat equipmentIndustrial maintenance

Need 1000+ pcs or a custom size?

Custom by size or drawing available. Better pricing for volume orders.

Custom by Size or Drawing