Mutual Screw & Supply

0.139" CS X 4.984" ID EPDM O-Rings | AS568-250 | Dash 250 | 70 Durometer | Black (150 / Pkg.)

0.139" CS X 4.984" ID EPDM O-Rings | AS568-250 | Dash 250 | 70 Durometer | - Main image
$66.44 $102.21 In stock

EPDM o-rings in AS568-250, 4.984" inner diameter by 0.139" cross-section. Service range -65°F to +300°F (-54°C to +149°C). Also known as EPM, EPR, Nordel, Vistalon.

Specifications

  • Product type: O-Ring
  • Material: EPDM
  • AS568 dash size: 250
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 4.984" (126.59 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -65°F to +300°F (-54°C to +149°C)
  • Measurement type: Imperial
  • Pack quantity: 150 per package
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

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)

Steven D. ★★★★★

The cross-section on these is exactly 0.139" as advertised, and they fit perfectly into the groove on my hydraulic cylinder rebuild. I've been running them at around 250°F for a week now with no leaks.

Amelia K. ★★★★★

The temperature range is what sold me—these handle -65°F to +300°F, so they're perfect for my outdoor setup that sees both brutal winters and hot summers. The 70 durometer stiffness feels just right for a snug seal without being a nightmare to install. Pack of 150 means I've got spares for years.

Violet ★★★★★

The last few weeks in my shop, I've been replacing worn-out seals on hot water lines, and these EPDM rings handled the 300°F range without any softening or cracking. The 4.984" ID fit the flanges perfectly with no stretching or trimming. For the price of a 150-pack, this is a no-brainer for anyone d