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Assorted black rubber washers in various sizes

Fiber Rubber Washers

(1729 products)

Shop fiber rubber washers in every OD, ID and thickness we stock. Fiber is rigid, compressible and electrically insulating — making it the go-to choice for electrical insulation, plumbing joints, drain plugs and light-duty sealing. Rated for up to 250°F. Fast shipping and bulk pricing on every order.

Not sure if Fiber is right for your job? Read our Fiber material guide for a full compound comparison, or compare all 7 washer materials side by side. New to washer sizing? See how to measure OD, ID & thickness, then shop the full catalog.

Popular Fiber uses: electrical & electronics and plumbing.

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