Single Lip Nitrile Rotary Shaft Seal (3.438x4.249x0.375 Inch)

Single Lip Nitrile Rotary Shaft Seal (3.438x4.249x0.375 Inch)

Marsoni

M251S

$18.69

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

Single Lip Nitrile Rotary Shaft Seal (3.438x4.249x0.375 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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The shoes were as advertised. Marc Joseph (I hav 4 other pairs) are the perfect shoes for me with my physical needs. Additionally they are exceptionally comfortable and attractive. This pair I returned because they weren’t quite the right fit for me. They are, like my other Marc Joseph shoes, very well made and very attractive.

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Reviewed in the United States on February 19, 2026

Verified Purchase

Francisco G.

Dallas, US

★★★★★ 5

Premium feel

Size: 10, Color: Black

Very comfortable to wear.

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Reviewed in the United States on April 20, 2026

Verified Purchase

Patrick

Omaha, US

★★★★★ 4

Ok in a pinch. Can get better shoes for the price. Wide aren’t wide

Size: 9 Wide, Color: Black/Black

These were ok comfortable. Would have preferred at the price point to be a little more comfortable. For being a wide size, the shoe was rather tight on my feet. Quality is ok. It passed for the wedding. Would probably have taken more time to pick something different if I had the ability to. This was a last minute purchase.

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Reviewed in the United States on December 11, 2025

Verified Purchase

Damone A. Thomas

Dallas, US

★★★★★ 5

A must have in your shoe collection.

Size: 13, Color: Black

Very comfortable, very stylish, and in my price range gives me exactly what I was looking for in a shoe. Definitely a quality shoe. I’m 6’4, 309 lbs and size 13 shoe.

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Reviewed in the United States on July 24, 2025