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uxcell Nitrile Rubber O-Rings 21mm OD 14mm ID 3.5mm Width, Metric Nitrile Rubber Sealing Gasket for Automotive Machine Plumbing, Pack of 20

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$6.29

$ 2 .99 $2.99

In Stock

1.Size:4mmx11mmx3.5mm


About this item

  • [Size] - 21mm Outside Diameter, 14mm Inner Diameter, 3.5mm Cross-Section Diameter
  • [Hardness] - 70A Durometer (Shore Hardness) for resistance to penetration
  • [Nitrile Rubber] - Standard Nitrile Butadiene Rubber with a wide temperature range from -4℉ (-20°C) to 212℉ (100°C). The o rings has smooth surface, great oil and heat resistance, wear-resistant and good sealing performance
  • [Application] - These small rubber o rings are widely used for automotive, pressure washer, bathroom floor drains, filter, pump, water hose, plumbing pipe, engines, valves, air conditioning maintenance and much more
  • [NOTE] - Please confirm the required size and material before purchase, and put it in the right place



Product Description

11

NBR O-Ring

  • Hardness: 70A
  • Temperature: -4℉ (-20°C) to 212℉ (100 °C)
1

Circular Cross-Section

  • They are circular, round in cross-section.
  • Designed for use in a wide variety of sealing applications.
  • Commonly provide a pressure and fluid seal between cylindrically shaped, overlapping mating surfaces and are commonly seen in engines, faucets, flanges, valves, and various cylinders.

Nitrile Butadiene Rubber O-rings

  • Good mechanical properties and high wear resistance NBR. Good resistance to many petroleum oils, greases, hydraulic fluids, alcohol, mineral oil, and grease.
  • Buna-nitrile is vulnerable to acetone, ethers, esters, ozone, sunlight, and weathering and should therefore not be used in ozone-generating electric motors, welding equipment, or in applications with exposure to UV light.

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1

Cyclist
2025-09-05 14:42:40
I just needed 1 for my bathroom drain stopper which had deteriorated. It fit fine. I have 19 of these left.
G. Yantz
2025-07-24 20:08:46
I use these inside flashlights as bumpers to keep batteries from rattling. Also helps protect batteries from damage should I drop the light or accidentally bump it on something, etc. Size is just right, material is very good.
Paul
2025-07-21 17:45:18
These are the right size to cushion CR123A or 16650 cells from shock.
Mike
2025-07-12 18:26:26
will buy this product again
josee
2025-05-05 14:57:29
Good ...
Jason Silliker
2024-11-18 13:09:17
Good deal