Single Lip Nitrile Rotary Shaft Seal (3x4.376x0.438 Inch)

Single Lip Nitrile Rotary Shaft Seal (3x4.376x0.438 Inch)

Marsoni

M251S

$24.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Single Lip Nitrile Rotary Shaft Seal (3x4.376x0.438 Inch)Acrylonitrile butadiene rubber (NBR) is the material name for nitrile rubber. This material is very good for seals due to its make up. Nitrile rubber can tolerate short term dry running of the sealing lip. The operating temperature range without failure of nitrile rubber is 40 to +100 C. This also offers a special nitrile rubber compound with a temperature range between 55 and +110 C. Please click here for a full in depth look at the range of seals

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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Really happy with this umbrella base so far. It feels sturdy and well-made, especially once filled—it definitely has the weight to keep my umbrella in place, even on windy days. The wheels are a huge plus. I can move it around the patio without struggling, which makes adjusting for shade super easy. The square design also looks clean and doesn’t take up too much space. Setup was simple, and it fits my umbrella perfectly. Overall, it does exactly what I needed—strong, stable, and easy to move. Great buy.

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Reviewed in the United States on March 24, 2026

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Amazon Customer

Lexington, US

★★★★★ 4

Easy rolling base

Size: Large, Color: Black

I purchased the umbrella base to enabling the ability to hold our umbrella and easy maneuver the umbrella on a paver patio. The base supported the umbrella and rolled sufficiently on the paver surface. However I did have an issue when readying the base for storage that the plastic umbrella pole support caused a black staining liquid on the pavers when it spilled on the patio

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Reviewed in the United States on June 10, 2025

Verified Purchase

M.E.

West Palm Beach, US

★★★★★ 5

Good Value

Size: Extra Large, Color: Black

Very easy to assemble, good instructions, seems to be decent quality.

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Reviewed in the United States on April 9, 2026

Verified Purchase

Blue85

Fort Morgan, US

★★★★★ 5

Easy to set up, easy to use, easy to move around, holds up well with strong wind.

Size: Large, Color: Black, Size: Large, Color: Black

Very easy to set up and start using within minutes. Easy to move around. It holds up well with wind gusts up to 35MPH (when umbrellas are closed and the brakes are engaged).

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Reviewed in the United States on April 17, 2026