Mutual Screw & Supply

0.139" CS X 1.859" ID PTFE O-Rings | AS568-225 | Dash 225 | 22 Durometer (25 / Pkg.)

0.139" CS X 1.859" ID PTFE O-Rings | AS568-225 | Dash 225 | 22 Durometer (25 / - Main image
$35.22 $50.32 In stock

PTFE o-rings in AS568-225, 1.859" 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: 225
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.859" (47.22 mm)
  • Durometer: 22 Shore A
  • Temperature range: -350°F to +500°F (-212°C to +260°C)
  • Measurement type: Imperial
  • Pack quantity: 25 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)

Brian ★★★★★

The 22 durometer PTFE feels surprisingly flexible compared to typical hard Teflon, yet it holds shape perfectly. Slid onto my fitting without any struggle, and the -350°F to +500°F range gives me confidence for both cryo and high-heat applications.

Andrew T. ★★★★★

These feel very solid in hand and fit perfectly into the high-temp seal groove I needed. The PTFE material should handle my cryogenic setup without any issues.

Ella ★★★★★

These seals fit perfectly into the groove I measured, and the PTFE feels noticeably stiffer than the Buna-N ones I was using before. The -350°F temperature rating gives me confidence they'll hold up in our cryogenic test rig.