Mutual Screw & Supply

0.103" CS X 1.049" ID Viton FKM O-Rings | AS568-121 | Dash 121 | X-Ring | 70 Durometer (60 / Pkg.)

0.103" CS X 1.049" ID Viton FKM O-Rings | AS568-121 | Dash 121 | X-Ring | 70 - Main image
$35.46 $54.56 In stock

Viton FKM o-rings in AS568-121, 1.049" inner diameter by 0.103" cross-section. Service range -15°F to +400°F (-26°C to +204°C). Also known as FKM, Fluoroelastomer.

Specifications

  • Product type: O-Ring (X-Ring)
  • Material: Viton FKM
  • AS568 dash size: 121
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 1.049" (26.64 mm)
  • Durometer: 70 Shore A
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 60 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. ★★★★★

Had a stubborn leak on a high-temp pneumatic valve that was eating standard Buna-N rings in a week. Dropped in one of these FKM o-rings a month ago and it still seals perfectly, even with the system cycling up to 300°F daily.

Ava R. ★★★★★

I swapped out some old Buna-N seals on a hot water valve with these Viton o-rings, and the 70 durometer feels noticeably more durable. The 1.049" ID fit perfectly on the 1" shaft, no slipping or binding. For the price per pack, these are a solid upgrade for high-temp applications.

Aurora J. ★★★★★

These o-rings handled 200°F oil in a pump perfectly—no swelling or leaking after a week of constant use. The 70 durometer hardness feels exactly right for static sealing applications.