Mutual Screw & Supply

0.21" CS X 1.975" ID Viton FKM O-Rings | AS568-329 | Dash 329 | 75 Durometer | Black (18 / Pkg.)

0.21" CS X 1.975" ID Viton FKM O-Rings | AS568-329 | Dash 329 | 75 Durometer | - Main image
$35.12 $53.21 In stock

Viton FKM o-rings in AS568-329, 1.975" inner diameter by 0.21" 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: 329
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.975" (50.16 mm)
  • Durometer: 75 Shore A
  • Color: Black
  • Temperature range: -15°F to +400°F (-26°C to +204°C)
  • Measurement type: Imperial
  • Pack quantity: 18 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 (4.6 / 5 · 5 reviews)

Eli ★★★★★

I needed a high-temp seal for an engine project and these Viton rings handle the heat without any issue. The 0.21" cross-section fits the groove perfectly and the black finish looks clean.

Ellie Q. ★★★★★

The cross-section feels exactly right—snug fit in the groove without any struggle. I bought these for a high-temp hydraulic line and they’ve held up perfectly so far, no leaks at all.

Robert ★★★★★

I needed something that could handle both extreme heat and cold in our lab equipment, and the -15°F to +400°F range on these o-rings fit the bill perfectly. The 75 durometer feels solid without being brittle, and the whole pack of 18 gave me plenty of extras for future repairs.