Mutual Screw & Supply

0.139" CS X 5.859" ID Silicone O-Rings | AS568-257 | Dash 257 | Metal Detectable | 70 Durometer (6 / Pkg.)

0.139" CS X 5.859" ID Silicone O-Rings | AS568-257 | Dash 257 | Metal - Main image
$40.75 $58.22 In stock

Silicone o-rings in AS568-257, 5.859" 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: 257
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 5.859" (148.82 mm)
  • Durometer: 70 Shore A
  • Temperature range: -80°F to +450°F (-62°C to +232°C)
  • Measurement type: Imperial
  • Metal detectable: Yes
  • Pack quantity: 6 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 (5.0 / 5 · 5 reviews)

Daniel ★★★★★

My lab runs hot processes up to 400°F and these held up without any softening or warping across repeated cycles. The metal-detectable feature gives us peace of mind for food-adjacent equipment, and the 70 durometer feels just right for a snug seal. Ordering the six-pack was the right call for spares

Julian ★★★★★

These metal-detectable rings fit perfectly on our mixing vat lid, and the 70 durometer feels just right—not too stiff, not too soft. The -80°F to +450°F range gives me confidence for both hot and cold processes.

Owen ★★★★★

The high-temperature rating is exactly what I needed for my application near a heat source, and the fit on the 5.859" ID was spot-on. These metal-detectable rings give me real peace of mind in the food processing line.