Mutual Screw & Supply

0.21" CS X 1.6" ID Buna-N Nitrile O-Rings | AS568-326 | Dash 326 | 50 Durometer (55 / Pkg.)

0.21" CS X 1.6" ID Buna-N Nitrile O-Rings | AS568-326 | Dash 326 | 50 Durometer - Main image
$35.77 $50.38 In stock

Buna-N Nitrile o-rings in AS568-326, 1.6" inner diameter by 0.21" 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: 326
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.6" (40.64 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 55 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Sebastian F. ★★★★★

Needed to replace some old o-rings on a hydraulic line and these 50 durometer Buna-N seals fit the AS568-326 groove perfectly. They’re working great in a constant 180°F application so far.

Ellie ★★★★★

These are going straight into a pneumatic actuator that cycles constantly; so far, no leaks and the 50 durometer seems to be holding up well despite the constant flexing. Shipping was quick, but the bag wasn't resealable, which is a bit annoying for storing the leftovers.

Ellie ★★★★★

The 50 durometer feels noticeably softer than standard 70 o-rings, which made seating them in a tight groove much easier. I used these to seal a hydraulic fitting on my log splitter and no leaks after a full afternoon running it hard. Great value for a 55-pack of nitrile rings.