25.80 × 3.53 mm (1.016 × 0.139 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 25.80 × 3.53 mm (1.016 × 0.139 in)
O-ring measurement guide in mm and inch
    25.80 × 3.53 mm (1.016 × 0.139 in) FKM O-ring
    O-ring size reference in mm and inch
    FKM O-ring product detail for 25.80 × 3.53 mm (1.016 × 0.139 in)
    O-ring measurement guide in mm and inch
25.80 × 3.53 mm (1.016 × 0.139 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 25.80 × 3.53 mm (1.016 × 0.139 in)
O-ring measurement guide in mm and inch
25.80 × 3.53 mm (1.016 × 0.139 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 25.80 × 3.53 mm (1.016 × 0.139 in)
O-ring measurement guide in mm and inch
    25.80 × 3.53 mm (1.016 × 0.139 in) FKM O-ring
    O-ring size reference in mm and inch
    FKM O-ring product detail for 25.80 × 3.53 mm (1.016 × 0.139 in)
    O-ring measurement guide in mm and inch
25.80 × 3.53 mm (1.016 × 0.139 in) FKM O-ring
O-ring size reference in mm and inch
FKM O-ring product detail for 25.80 × 3.53 mm (1.016 × 0.139 in)
O-ring measurement guide in mm and inch

O-Ring 25.80 × 3.53 mm · FKM · 70A

25.80 × 3.53 mmFKM70A

Online pack sizes: 1000 pcs / 60 pcs / 100 pcs / 250 pcs / 500 pcs.

MOQ: lowest listed pack. For quantities above the listed packs, request a quote.

$684.90
$684.90
/ pack
1000 pcs / 60 pcs / 100 pcs / 250 pcs / 500 pcs available
$0.68 / pc · MOQ 60 pcs · Pack total $684.90
Shipping calculated at checkout.
Pack Size:
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Need 1000+ pcs or a custom size?

Better pricing for volume orders

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

Quick Specifications

Inner Diameter (ID)25.80 mm
Cross Section (CS)3.53 mm
MaterialFKM
Hardness70A
Pack Options1000 pcs / 60 pcs / 100 pcs / 250 pcs / 500 pcs
MOQLowest listed pack
Larger QuantitiesRequest a quote above the listed packs
Available in the listed pack sizes

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