Mutual Screw & Supply

0.21" CS X 1.85" ID Buna-N Nitrile O-Rings | AS568-328 | Dash 328 | 90 Durometer (200 / Pkg.)

0.21" CS X 1.85" ID Buna-N Nitrile O-Rings | AS568-328 | Dash 328 | 90 - Main image
$46.41 $65.36 In stock

Buna-N Nitrile o-rings in AS568-328, 1.85" 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: 328
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 1.85" (46.99 mm)
  • Durometer: 90 Shore A
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 200 per package
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Natalie U. ★★★★★

Needed a batch of 90-durometer o-rings for a hydraulic repair and these fit the bill perfectly. The 200-count pack means I have plenty left over for future jobs, and the material feels nice and firm.

Steven L. ★★★★★

The temperature range is spot on for my shop, which sits in an unheated garage through the winter, and the 90 durometer feels plenty firm for a tight seal. These fit perfectly on the hydraulic fitting I needed them for, and the pack of 200 means I won't be reordering for a while.

Evelyn ★★★★★

The 90 durometer hardness on these is spot on for my high-pressure fittings—they hold their shape without any squish or rolling. I tore through a pack at work replacing worn ones in a hydraulic manifold, and every single ring seated clean with no flash or burrs. At 200 per pack, it's a solid value f