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Single Lip Nitrile Rotary Shaft Seal (3.125x4.003x0.438 Inch)
Single Lip Nitrile Rotary Shaft Seal (3.125x4.003x0.438 Inch)
Single Lip Nitrile Rotary Shaft Seal (3.125x4.003x0.438 Inch)
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Single Lip Nitrile Rotary Shaft Seal (3.125x4.003x0.438 Inch)

Marsoni M251S
Sale price$24.95
Pay 4 payments of $6.24 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Single Lip Nitrile Rotary Shaft Seal (3.125x4.003x0.438 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.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 252 reviews
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Product Reviews
B
Verified Purchase
Benjamin Butler
Grantham, US
★★★★★ 5
Best socks ever
Size: Large, Color: (100) White / White / Mod Gray
Best athletic socks I’ve bought. I usually buy UA socks anyway and these are the best. Super soft and comfy. Fit snug and my feet don’t slide around in them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 9, 2026
S
Verified Purchase
Sigrid Inger
San Leandro, US
★★★★★ 5
Much much better than the standard sock
Size: X-Large, Color: (001) Black / Black / Castlerock
These socks are superb. Lots of padding in the right places, snug where it should be snug & loose where you don't want it to bind. They are marked with an 'L' for left foot, & 'R' for the right foot (it makes a difference in the fit being perfect. They stay up on your heel & don't slide down
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
C
Verified Purchase
Chris
Lexington, US
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ. Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jill
Massapequa, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 8, 2026
V
Verified Purchase
vbgirlfla
Natrona Heights, US
★★★★★ 5
Hold up to tough wear - definitely recommend
Size: X-Large, Color: (001) Black / Black / Castlerock
These are my teens favorite socks. We've ordered multiple sets. Given that he tends to wear then as slippers I am really impressed with how they hold up. The extra large size is great for bigger feet. They wash well and I didn't notice any shrinkage, fading or pilling. This set is going to college with him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026

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