Backing Rings | McMaster-Carr

Filter by

ID

OD

Dash Number

Width

Material

Thickness

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Acetic Acid (White Vinegar)

Ammonium Hydroxide

Seal ID

Color

Construction

Hardness

Hardness Rating

Seal Width

Maximum Temperature

Bore Diameter

Top Shape

Minimum Temperature

Rod Diameter

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

Performance

Ultra Chemical Resistant

For Cylinder Type

Specifications Met

How can we improve?

381 Products

Backup Rings

Ultra-Chemical-Resistant PTFE Backup Rings

Ultra-Chemical-Resistant PTFE Backup Rings

Withstand acetone, fluorinated solvents, methanol, and many acids

Oil-Resistant Buna-N Backup Rings

Oil-Resistant Buna-N Backup Rings

Resist grease, petroleum fluids, and motor oil

PTFE Backup Ring Assortments

PTFE Backup Ring Assortments

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

Other Products

Piston Seals

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

Head Seals

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

Rod Seals

Maintain pressure inside cylinders and prevent fluid leaks

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