Mutual Screw & Supply

0.139" CS X 1.046" ID PTFE O-Rings | AS568-215 | Dash 215 | 21 Durometer (50 / Pkg.)

0.139" CS X 1.046" ID PTFE O-Rings | AS568-215 | Dash 215 | 21 Durometer (50 / - Main image
$35.62 $58.39 In stock

PTFE o-rings in AS568-215, 1.046" 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: 215
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.046" (26.57 mm)
  • Durometer: 21 Shore A
  • Temperature range: -350°F to +500°F (-212°C to +260°C)
  • Measurement type: Imperial
  • Pack quantity: 50 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 (4.6 / 5 · 5 reviews)

Eva F. ★★★★★

The 21 durometer is noticeably softer than standard PTFE, which made seating these in a tight gland much easier without cracking. Install went smoothly and they haven't leaked a drop in our cryogenic test rig so far.

Olivia Z. ★★★★★

These fit perfectly in my cryogenic valve assembly where standard rubber would shatter. The 21 durometer hardness is surprisingly pliable for a PTFE ring, making installation much easier than I anticipated.

Emily ★★★★★

I needed o-rings that could handle extreme temperatures for a high-heat gasket repair, and these PTFE ones rated up to 500°F are exactly what the job required. The 21 durometer is noticeably soft and pliable, yet they seated perfectly in the groove without any struggle.