Single Lip Nitrile Rotary Shaft Seal (4x4.999x0.438 Inch)

Single Lip Nitrile Rotary Shaft Seal (4x4.999x0.438 Inch)

Marsoni

M251S

$24.95

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

Single Lip Nitrile Rotary Shaft Seal (4x4.999x0.438 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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I highly recommend purchasing multiple orders of these socks. I used to wear puma socks that had the padding around the arch and were extremely thick (being that my feet are always cold) i wanted something thick again especially during the winter time. I have had these socks for over two months and I can truly say that they were a better purchase than my pumas. They are so thick that wearing even one pair will still fit into my tennis shoes or running shoes but my toes NEVER get cold. I put a lot of wear and tear on them and they have never started tearing on the bottoms like most socks do. Socks usually develop holes or tears from the friction but I wore the same pair over and over again while walking 13+ miles a day and I cannot tell any sign that these are going out on the bottom. I highly recommend purchasing multiple pairs of these socks.

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Reviewed in the United States on December 6, 2023

Verified Purchase

Addison

Lowell, US

★★★★★ 5

The best no show socks

Number of Items: 6, Color: Black/Graphite (6-pairs), Size: Large

The best no show socks I’ve ever purchased, they’re all I buy.. they’re comfortable, moisture wicking, don’t show but stay on (don’t slide off heal) and durable

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Reviewed in the United States on November 6, 2025