Mutual Screw & Supply

0.103" CS X 2.111" ID PTFE O-Rings | AS568-138 | Dash 138 | 13 Durometer (18 / Pkg.)

0.103" CS X 2.111" ID PTFE O-Rings | AS568-138 | Dash 138 | 13 Durometer (18 / - Main image
$37.16 $55.46 In stock

PTFE o-rings in AS568-138, 2.111" inner diameter by 0.103" 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: 138
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 2.111" (53.62 mm)
  • Durometer: 13 Shore A
  • Temperature range: -350°F to +500°F (-212°C to +260°C)
  • Measurement type: Imperial
  • Pack quantity: 18 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 (4.8 / 5 · 5 reviews)

Penelope ★★★★★

Installed these in a hydraulic valve that sees temperatures around 450°F and they've held up perfectly for months. The PTFE material feels tough yet pliable enough to seat properly, and the exact 2.111" ID measurement made installation straightforward.

Lily N. ★★★★★

The PTFE material handles high heat without deforming, which is exactly what I needed for a steam valve rebuild. The 0.103" cross-section seated nicely in the groove, and the 13 durometer feels just right for sealing.

Natalie ★★★★★

These fit perfectly in my hydraulic application where standard rubber o-rings just couldn't handle the high heat. The 13 durometer is surprisingly supple for PTFE, making installation a breeze without cracking.