Mutual Screw & Supply

0.103" CS X 1.549" ID PTFE O-Rings | AS568-129 | Dash 129 | 12 Durometer (35 / Pkg.)

0.103" CS X 1.549" ID PTFE O-Rings | AS568-129 | Dash 129 | 12 Durometer (35 / - Main image
$34.35 $55.4 In stock

PTFE o-rings in AS568-129, 1.549" 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: 129
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 1.549" (39.34 mm)
  • Durometer: 12 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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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)

Mia ★★★★★

I needed a high-temperature seal for a steam line and these PTFE o-rings handled the 400°F service without any issue. The 12 durometer rating made them firm enough to hold pressure yet still pliable to install.

Aurora H. ★★★★★

The 0.103" cross-section was exactly what I needed to seat properly in our cryogenic valve housing. They slide in easier than the harder durometer seals I've used before.

Riley U. ★★★★★

These handled the -350°F range on our cryo test rig without getting brittle, and the 12 durometer is soft enough to seat perfectly in the gland. The 1.549" ID fit our shaft with zero slop, and the pack of 35 means I've got spares for the next few rebuilds.