Flexible Washers | McMaster-Carr

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System of Measurement

ID

OD

Width

Cross Section Shape

Material

Beryllium Copper

Phosphor Bronze

Silicon Carbide

Stainless Steel

Dash Number

Hardness

Color

Hardness Rating

For Use With

Diluted Salt Solutions

Fluorinated Solvents

Synthetic Lubricants

Transmission Fluid

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

500° F or greater

Core Material

Thickness

Shaft Diameter

Fractional ID

Fractional Width

Specifications Met

Federal Specification

Fractional OD

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Minimum Temperature

-100° F or less

-99° F to -50° F

-49° F to -25° F

-24° F to -1° F

Greater than 0° F

Screw Size

Hole Diameter

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16,158 Products

Fastening and Joining

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Lock Washers

Resist vibration to prevent fasteners from loosening

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Retaining Rings

Retaining Rings

Hold components on a shaft

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Sealing

O-Rings

Fit snugly into a groove between parts to create a leak-resistant seal

11,007 products

Backup Rings

Extend the life of O-rings and improve their performance under high pressure

Hose Washers

Place inside nozzles and spigots to prevent leaks in an attached hose

Shaft Seals

Prevent leaks in motors, pumps, and gearboxes

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Vibration-Damping Mounts

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

Power Transmission

Disc Springs

Maintain tension and separate components on shafts, under bolt heads, and at the ends of valves

Raw Materials

Foam

Pockets of air make it lighter in weight than rubber; good for packing, insulating, and sealing

Electrical

Battery-Terminal Washers

Battery-Terminal Washers

Stop battery acid fumes from corroding terminal posts

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