Mutual Screw & Supply

0.21" CS X 0.849" ID Buna-N Nitrile O-Rings | AS568-316 | Dash 316 | 70 Durometer | Black (400 / Pkg.)

0.21" CS X 0.849" ID Buna-N Nitrile O-Rings | AS568-316 | Dash 316 | 70 - Main image
$45.26 $65.6 In stock

Buna-N Nitrile o-rings in AS568-316, 0.849" inner diameter by 0.21" cross-section. Service range -40°F to +250°F (-40°C to +121°C). Also known as NBR, Buna-N, Chemigum, Hycar, Perbunan.

Specifications

  • Product type: O-Ring
  • Material: Buna-N Nitrile
  • AS568 dash size: 316
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 0.849" (21.56 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 400 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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 (4.8 / 5 · 5 reviews)

Samuel I. ★★★★★

The 70 durometer feels just right for sealing my hydraulic fittings, and these 316 o-rings fit perfectly without any distortion. I've used a few so far with no leaks, which is exactly what I needed.

William Q. ★★★★★

Finally got around to rebuilding my compressor valves and these fit perfectly with no leaks. The 70 durometer is stiff enough to hold pressure but still easy to seat by hand.

Evelyn Z. ★★★★★

I needed a bulk pack for a hydraulic repair job and the 70-durometer hardness gives these just the right seal without being too stiff. The -40°F rating is reassuring since I work in an unheated shop during winter.