Mutual Screw & Supply

0.139" CS X 2.984" ID PTFE O-Rings | AS568-234 | Dash 234 | 23 Durometer (12 / Pkg.)

0.139" CS X 2.984" ID PTFE O-Rings | AS568-234 | Dash 234 | 23 Durometer (12 / - Main image
$36.58 $57.16 In stock

PTFE o-rings in AS568-234, 2.984" 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: 234
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 2.984" (75.79 mm)
  • Durometer: 23 Shore A
  • Temperature range: -350°F to +500°F (-212°C to +260°C)
  • Measurement type: Imperial
  • Pack quantity: 12 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 (5.0 / 5 · 5 reviews)

Natalie X. ★★★★★

The temperature range on these is what sold me—handling -350°F to +500°F means I don't have to worry about them degrading in my cryo setup. They're stiff as expected for PTFE, but the 23 durometer gives just enough flex to seat properly without cracking.

Eli ★★★★★

These o-rings fit perfectly into the high-temp seal I needed to rebuild, handling up to 500°F without any issue. The 23 durometer is noticeably softer than standard PTFE, which made installation far easier than I expected for this size.

Abigail ★★★★★

Finally got around to installing these in a high-temp manifold and the -350 to +500 range gives me real peace of mind. The 23 durometer is noticeably more flexible than the standard 75 Shore PTFE I’ve used before, which made seating them into the groove a breeze.