O-Ring Backup Rings | McMaster-Carr

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398 Products

Backup Rings

Oil-Resistant Buna-N Backup Rings

Oil-Resistant Buna-N Backup Rings

Extend the life of O-rings in oily, high-pressure systems up to 2,500 psi

PTFE Backup Ring Assortments

PTFE Backup Ring Assortments

Keep a variety of ultra-chemical-resistant PTFE backup ring sizes on hand

Buna-N Backup Ring Assortments

Buna-N Backup Ring Assortments

Keep a variety of oil-resistant Buna-N backup ring sizes on hand

High-Pressure Ultra-Chemical-Resistant PTFE Backup Rings

High-Pressure Ultra-Chemical-Resistant PTFE Backup Rings

Protect O-rings in equipment operating at pressures up to 4,300 psi

Other Products

Piston Seals

Prevent leaks inside pistons by creating a seal against the cylinder bore

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

Head Seals

Maintain a seal even under fluctuating pressure; more reliable than an O-ring with a backup ring

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)