Mutual Screw & Supply

0.139" CS X 1.359" ID PTFE O-Rings | AS568-220 | Dash 220 | 22 Durometer (35 / Pkg.)

0.139" CS X 1.359" ID PTFE O-Rings | AS568-220 | Dash 220 | 22 Durometer (35 / - Main image
$39.89 $55.4 In stock

PTFE o-rings in AS568-220, 1.359" 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: 220
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.359" (34.52 mm)
  • Durometer: 22 Shore A
  • Temperature range: -350°F to +500°F (-212°C to +260°C)
  • Measurement type: Imperial
  • Pack quantity: 35 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 (5.0 / 5 · 5 reviews)

Robert B. ★★★★★

After struggling with standard o-rings that couldn't handle high heat, these PTFE ones seated perfectly in my application and haven't softened at all during repeated thermal cycles up to 300°F. The 22 durometer is noticeably more pliable than the typical stiff PTFE I've used before.

Henry A. ★★★★★

Finally found a proper 22 durometer PTFE seal that doesn't deform under extreme heat—the cross-section is exactly 0.139" as stated. These nested perfectly into my cryogenic valve assembly and held pressure effortlessly at -300°F.

Jason P. ★★★★★

The temperature range on these PTFE o-rings is exactly what I needed for a high-heat application; they slipped into place without any issue. These 220 size rings have a nice, consistent cross-section that seals perfectly. Really glad I found these for the price.