Mutual Screw & Supply

0.139" CS X 0.421" ID Buna-N Nitrile O-Rings | AS568-205 | Dash 205 | Metal Detectable | 70 Durometer (75 / Pkg.)

0.139" CS X 0.421" ID Buna-N Nitrile O-Rings | AS568-205 | Dash 205 | Metal - Main image
$32.1 $50.15 In stock

Buna-N Nitrile o-rings in AS568-205, 0.421" inner diameter by 0.139" 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: 205
  • Cross-section: 0.139" (3.53 mm)
  • Inner diameter: 0.421" (10.69 mm)
  • Durometer: 70 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Metal detectable: Yes
  • Pack quantity: 75 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)

Ruby V. ★★★★★

I was a little skeptical about the metal-detectable claim, but these o-rings really do trip the wand in our food line during testing. The 70 durometer is firm enough to seat properly without being a nightmare to squeeze into the groove.

Lily H. ★★★★★

The metal-detectable feature is a huge plus for our food processing line, giving me peace of mind during maintenance. These o-rings fit the AS568-205 spec perfectly and the 70 durometer feels just right for our pneumatic valves.

Nicholas C. ★★★★★

Replaced the old o-rings in our hydraulic press with these, and the 70 durometer feels just right—not too stiff, not too soft. The metal-detectable feature gives me peace of mind in a production setting. Worked perfectly for a simple swap-out job.