Mutual Screw & Supply

0.21" CS X 2.1" ID HNBR O-Rings | AS568-330 | Dash 330 | 90 Durometer (12 / Pkg.)

0.21" CS X 2.1" ID HNBR O-Rings | AS568-330 | Dash 330 | 90 Durometer (12 / - Main image
$38.28 $53.92 In stock

HNBR o-rings in AS568-330, 2.1" inner diameter by 0.21" cross-section. Service range -40°F to +300°F (-40°C to +149°C). Also known as HSN, Highly Saturated Nitrile.

Specifications

  • Product type: O-Ring
  • Material: HNBR
  • AS568 dash size: 330
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 2.1" (53.34 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +300°F (-40°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 12 per package
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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)

Richard F. ★★★★★

The 90 durometer hardness is exactly what I needed for a high-pressure seal, and they fit the groove perfectly without any wrestling. I've got a spare set on the bench because at this price for twelve, it's a no-brainer to keep them stocked.

Daniel L. ★★★★★

These handled the 200°F transmission fluid in my tractor's PTO seal without any swelling, a big improvement over the Buna-N ones I used before. The 90 durometer feels noticeably firmer during installation, too.

George H. ★★★★★

The 90 durometer on these HNBR o-rings made a noticeable difference sealing my hydraulic fitting where standard ones always leaked. They slid in easily and haven't budged despite the heat cycling around 250°F.