Mutual Screw & Supply

0.139" CS X 0.171" ID Silicone O-Rings | AS568-201 | Dash 201 | FDA Compliant | 70 Durometer | Red (325 / Pkg.)

0.139" CS X 0.171" ID Silicone O-Rings | AS568-201 | Dash 201 | FDA Compliant | - Main image
$37.5 $52.08 In stock

Silicone o-rings in AS568-201, 0.171" inner diameter by 0.139" cross-section. Service range -80°F to +450°F (-62°C to +232°C). Also known as VMQ, Silastic.

Specifications

  • Product type: O-Ring
  • Material: Silicone
  • AS568 dash size: 201
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.171" (4.34 mm)
  • Durometer: 70 Shore A
  • Color: Red
  • Temperature range: -80°F to +450°F (-62°C to +232°C)
  • Measurement type: Imperial
  • Compliance: FDA 21 CFR 177.2600
  • Pack quantity: 325 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)

Zoe ★★★★★

These sealed perfectly on my home brew keg’s pressure relief valve. The 70 durometer red silicone is noticeably softer than the black Buna-N I used before, and I love that they’re rated for both freezing and boiling temps.

Hannah ★★★★★

I needed a food-safe seal for my sous vide setup, and these 70 durometer red rings fit the groove perfectly. The material feels supple yet durable, and the 450°F rating gives me peace of mind for sanitizing cycles.

Madison L. ★★★★★

I’ve used these o-rings in a high-heat sterilizer cycle, and they didn’t harden or crack after repeated runs. The 70 durometer feels just right for a tight seal without being too stiff. Definitely a solid value for the quantity.