Mutual Screw & Supply

0.103" CS X 2.111" ID Buna-N Nitrile O-Rings | AS568-138 | Dash 138 | 50 Durometer (200 / Pkg.)

0.103" CS X 2.111" ID Buna-N Nitrile O-Rings | AS568-138 | Dash 138 | 50 - Main image
$39.55 $60.84 In stock

Buna-N Nitrile o-rings in AS568-138, 2.111" inner diameter by 0.103" cross-section. Service range -40°F to +250°F (-40°C to +121°C). Also known as NBR, Buna-N, Chemigum, Hycar, Perbunan.

Specifications

  • Product type: O-Ring
  • Material: Buna-N Nitrile
  • AS568 dash size: 138
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 2.111" (53.62 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 200 per package
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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Eli ★★★★★

These came packaged neatly in bundles of 100, which made counting out the two hundred a breeze. The 50 durometer hardness gives them a nice, supple give that seals well without needing to force them into the groove.

John ★★★★★

The 50 durometer feels just right for my pneumatic applications—not too stiff, not too soft. Installed a batch on an old regulator and the seal held tight immediately after pressurizing. These 200-count packs will last me a couple of years at this rate.

Natalie ★★★★★

I’ve been using these o-rings on a hydraulic repair job, and the 50-durometer rubber seals perfectly without any leaks. The 2.111" inner diameter fit snugly, and the pack of 200 should last me through several projects.