Mutual Screw & Supply

0.139" CS X 0.984" ID PTFE O-Rings | AS568-214 | Dash 214 | 21 Durometer (35 / Pkg.)

0.139" CS X 0.984" ID PTFE O-Rings | AS568-214 | Dash 214 | 21 Durometer (35 / - Main image
$37.17 $51.63 In stock

PTFE o-rings in AS568-214, 0.984" 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: 214
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.984" (24.99 mm)
  • Durometer: 21 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 (4.8 / 5 · 5 reviews)

Lily F. ★★★★★

Installed these Dash 214 o-rings in a high-temp steam valve and they handled 400°F without any softening. The 21 durometer is noticeably pliable, which made seating them into the groove much easier than harder PTFE seals I've used.

Sebastian ★★★★★

I appreciate how these PTFE o-rings kept their flexibility even after I torqued them down in a cryogenic fitting. The 21 durometer is noticeably softer than standard Teflon, which made seating them much easier.

Emily ★★★★★

The softness surprised me for a PTFE ring — the 21 durometer rating really makes them flexible enough to seat easily in a tight groove. I used these for a high-temp seal and the fit was spot-on out of the package.