Hydraulic O-Rings

Hydraulic O-rings seal fittings, cylinders, valves and pumps in hydraulic systems. The right compound and size stops leaks and holds up under high pressure and temperature.

O-Ring Options

  • Nitrile (Buna-N) – standard petroleum oil service
  • Viton (FKM) – high temperatures and chemicals
  • Polyurethane – high pressure and abrasion resistance
  • Backup rings – prevent extrusion
  • O-ring kits – assorted sizes for maintenance

Choosing O-Rings

Match size (AS568 or metric), durometer and compound to the fluid, temperature and pressure. Use backup rings above about 1,500 psi.

Centro supplies hydraulic O-rings and kits.

Related categories: Hydraulic Accessories | Hydraulic Filters

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O-Ring For Thread M12x1,5 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M16x1,5 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread 7/8-14 UNF NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M27x2 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring Viton Size: 16.36x2.2
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M18x1,5 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Size: 37.47x3
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Size: 23.47x2.95
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 37,69mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 47.22mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 56.74mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 69.44mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 85.32mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 98.02mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 110.72mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 18.64mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 32.92mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 32.92mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 47.22mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 24.99mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 18.64mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 37.69mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 85.32mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 56.74mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M12x1,5 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M16x1,5 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread 7/8-14 UNF NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M27x2 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring Viton Size: 16.36x2.2
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring For Thread M18x1,5 NBR
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Size: 37.47x3
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Size: 23.47x2.95
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 37,69mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 47.22mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 56.74mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 69.44mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 85.32mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 98.02mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 110.72mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 18.64mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring NBR Internal Diameter: 32.92mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 32.92mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 47.22mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 24.99mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 18.64mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 37.69mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 85.32mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times

O-Ring FPM Internal Diameter: 56.74mm Cross-Section: 3,53mm
Requires Quote
Available for Purchase

Subject to factory lead times