Mutual Screw & Supply

0.103" CS X 1.049" ID Buna-N Nitrile O-Rings | AS568-121 | Dash 121 | 50 Durometer (300 / Pkg.)

0.103" CS X 1.049" ID Buna-N Nitrile O-Rings | AS568-121 | Dash 121 | 50 - Main image
$35.98 $58.04 In stock

Buna-N Nitrile o-rings in AS568-121, 1.049" inner diameter by 0.103" 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: 121
  • Cross-section: 0.103" (2.62 mm)
  • Inner diameter: 1.049" (26.64 mm)
  • Durometer: 50 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 300 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)

Ellie ★★★★★

I needed a bulk supply for rebuilding pneumatic actuators, and these 50-durometer nitrile rings seal perfectly in the 1.049-inch bore without any leaking. The -40°F temperature range gives me confidence they'll hold up in my unheated workshop during winter.

Henry Z. ★★★★★

The outer diameter fits my 1.049-inch bore perfectly, and the 50 durometer makes them soft enough to seat without forcing. I've used about two hundred so far on a leak test rig running at ambient temp, and not a single one has failed.

Jacob R. ★★★★★

I needed a large batch for a pneumatic project and the 50-durometer softness of these AS568-121 o-rings made installation onto the flanges a breeze. The 1.049-inch inner diameter fit perfectly on my standard fittings.