OR90BLKBUN138 - O-Ring, Black BUNA/NBR Nitrile, Duro: 90, Size: 138 (Min Qty: 56)

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MSRP: $0.61
$0.36
(You save $0.25 )
SKU:
OR90BLKBUN138
Availability:
2 Business Days (subject to change)
Minimum Purchase:
56 units
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Product Overview

Description:

Buna O-rings are some of the most commonly used o-rings in typical applications due to an excellent sealing property and durability. Buna, or Buna-N, is a copolymer with Butadiene and Acrylonitrile and is commonly referred to as Nitrile or NBR. This material offers a relatively low cost, great mechanical properties and resistance to many common oils, fuels and lubricants.

Typical Applications

Silicone Greases or Oils, Water (usually with NSF-61 types O-rings and for temperatures under 150°F), Petroleum Oils and Fuels, Ethylene Glycol Fluids, mineral oils, di-ester base lubricants, air, water under 150°F, and natural gas. It is best used in enclosed environments, as the material has a poor resistance to weathering, sunlight and ozone.

Do Not Use With:

Ketones (MEK), Sunlight, Ozone, Weathering, Halogenated Hydrocarbons, Auto and Aircraft Brake Fluids, and Strong Acids.

Specifications
MaterialNitrile Buna RubberColor: BLACK
Min. Temperature °F(°C): -31°F (-35°C)
Max. Temperature °F(°C): 250°F (121°C)

Product Dimensions:

Inner Diameter: 2 1/8 (2.112")

Outer Diameter: 2 5/16 (2.318")

Cross Section: 3/32 (0.103")

Durometer 90A (Soft)

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