Mutual Screw & Supply

0.139" CS X 1.421" ID Silicone O-Rings | AS568-221 | Dash 221 | FDA Compliant | 70 Durometer | Red (100 / Pkg.)

0.139" CS X 1.421" ID Silicone O-Rings | AS568-221 | Dash 221 | FDA Compliant | - Main image
$32.99 $51.54 In stock

Silicone o-rings in AS568-221, 1.421" 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: 221
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.421" (36.09 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: 100 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)

Penelope ★★★★★

Used these to replace old gaskets on my home espresso machine's steam wand, and the 70 durometer red silicone seals perfectly. They handle the high heat without any issue, and the price for a hundred was way better than buying singles locally.

Hannah ★★★★★

I needed a reliable high-temp seal for a brewing setup, and these silicone o-rings handle the 212°F steam without any issue. The 1.421" ID fit perfectly on my standard tri-clamp, and the 70 durometer gives just enough flexibility for a snug seal.

Eli J. ★★★★★

The red color makes them easy to spot among my other seals, and the 70 durometer feels just right for the pressure in my hobby vacuum chamber.