Mutual Screw & Supply

0.21" CS X 1.037" ID Silicone O-Rings | AS568-319 | Dash 319 | FDA Compliant | 70 Durometer | Red (80 / Pkg.)

0.21" CS X 1.037" ID Silicone O-Rings | AS568-319 | Dash 319 | FDA Compliant | - Main image
$33.22 $51.9 In stock

Silicone o-rings in AS568-319, 1.037" inner diameter by 0.21" 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: 319
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.037" (26.34 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: 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)

Eva H. ★★★★★

I've been using these red silicone o-rings for a high-heat application near my oven, and the 70 durometer feels just right—not too stiff, not too soft. The 1.037" inner diameter fits perfectly on my existing fitting without any stretching.

Ava N. ★★★★★

I’d been struggling with standard black o-rings not sealing properly under my hot water pump, so switching to these made a night-and-day difference—the 70 durometer feels firm yet flexible. The 1.037” inner diameter slid onto the fitting perfectly, and the red color makes inspecting for cracks way f

Andrew ★★★★★

The red color makes them easy to spot during installation, and the 70 durometer feels just right for a snug seal without being too stiff. I’ve used them on a home brewing setup where the FDA compliance was a must, and they’ve held up perfectly under steam.