Mutual Screw & Supply

0.139" CS X 2.484" ID PTFE O-Rings | AS568-230 | Dash 230 | 23 Durometer (14 / Pkg.)

0.139" CS X 2.484" ID PTFE O-Rings | AS568-230 | Dash 230 | 23 Durometer (14 / - Main image
$35.11 $51.63 In stock

PTFE o-rings in AS568-230, 2.484" inner diameter by 0.139" cross-section. Service range -350°F to +500°F (-212°C to +260°C). Also known as Teflon, Polytetrafluoroethylene.

Specifications

  • Product type: O-Ring
  • Material: PTFE
  • AS568 dash size: 230
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 2.484" (63.09 mm)
  • Durometer: 23 Shore A
  • Temperature range: -350°F to +500°F (-212°C to +260°C)
  • Measurement type: Imperial
  • Pack quantity: 14 per package
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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 (4.2 / 5 · 5 reviews)

Sophia ★★★★★

The softer 23 durometer PTFE was the key for me—it sealed a stubborn hydraulic fitting that harder o-rings couldn't handle. These handled the -350°F cryogenic test in our lab without any cracking.

Timothy ★★★★★

Finally, a Dash 230 that actually holds up at the sub-zero temps I work with—these PTFE rings don't get brittle like the rubber ones did. The 23 durometer is noticeably stiffer but seals perfectly in my cryogenic valve.

John ★★★★★

I've been using these PTFE o-rings for a high-temp sealing application, and the 23 durometer is surprisingly pliable for a Teflon material—they seated perfectly without any cracking. The -350°F to +500°F range gives me confidence they'll hold up in extreme conditions. Definitely worth the price for