Mutual Screw & Supply

0.139" CS X 1.421" ID Viton FKM O-Rings | AS568-221 | Dash 221 | 90 Durometer (80 / Pkg.)

0.139" CS X 1.421" ID Viton FKM O-Rings | AS568-221 | Dash 221 | 90 Durometer - Main image
$38.63 $55.18 In stock

Viton FKM o-rings in AS568-221, 1.421" inner diameter by 0.139" cross-section. Service range -15°F to +400°F (-26°C to +204°C). Also known as FKM, Fluoroelastomer.

Specifications

  • Product type: O-Ring
  • Material: Viton FKM
  • AS568 dash size: 221
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 1.421" (36.09 mm)
  • Durometer: 90 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 80 per package
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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)

Sophia U. ★★★★★

The 90 durometer feels really firm and durable, which is exactly what I needed for a high-pressure seal. These Viton rings slid right into place on my compressor fitting without any fuss.

William X. ★★★★★

The temperature range on these is what sold me—my last batch of o-rings couldn’t handle the 350°F steam line. These Viton ones fit the groove perfectly with the 1.421" ID, and the 90 durometer feels sturdier than I expected. Glad I grabbed the 80-pack for the price.

Timothy E. ★★★★★

I was a little worried about the high 90 durometer being too stiff, but these Viton rings seal my hot oil filter housing perfectly and haven't hardened at all after a few heat cycles. They handle the 400°F rating like champs.