Single Lip Nitrile Rotary Shaft Seal (3.875x4.999x0.375 Inch)

Single Lip Nitrile Rotary Shaft Seal (3.875x4.999x0.375 Inch)

Marsoni

M251S

$21.36

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

Single Lip Nitrile Rotary Shaft Seal (3.875x4.999x0.375 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.
Final sale items are not eligible for returns or exchanges.
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I like this map holder for its versatility in holding different size maps. Once sealed, it was very effective at keeping moisture out and protecting the maps. I originally used this on a 13K mountain ascent. Worked great. The only thing that can be tricky at times is sealing the top. It's not as easy as sealing a typical zip-loc kitchen bag, takes some doing to get it to seal.

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Reviewed in the United States on May 26, 2025

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BearKnife

Waukegan, US

★★★★★ 5

Best Map Case Ever!!!

Size: Regular - 12 x 16 Inches

Best Map case in the market! Field tested and keeps everything dry. The size is fantastic and you can run paracord through the rings. I would recommend this to anyone that uses a map. You definitely pay for what you get and that's high quality and functionality.

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Reviewed in the United States on August 13, 2025

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Kindle Customer

Alexandria, US

★★★★★ 5

Just right for protecting river trip guides

Size: Regular - 12 x 16 Inches

Nice and durable - heavy duty. Getting ziplock to close is a pain though - lick or spit helps.

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Reviewed in the United States on December 19, 2024

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