Mutual Screw & Supply

0.21" CS X 7.975" ID Buna-N Nitrile O-Rings | AS568-363 | Dash 363 | 70 Durometer | Black (40 / Pkg.)

0.21" CS X 7.975" ID Buna-N Nitrile O-Rings | AS568-363 | Dash 363 | 70 - Main image
$33.58 $53.3 In stock

Buna-N Nitrile o-rings in AS568-363, 7.975" 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: 363
  • Cross-section: 0.21" (5.33 mm)
  • Inner diameter: 7.975" (202.56 mm)
  • Durometer: 70 Shore A
  • Color: Black
  • Temperature range: -40°F to +250°F (-40°C to +121°C)
  • Measurement type: Imperial
  • Pack quantity: 40 per package
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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)

Scarlett G. ★★★★★

These o-rings fit perfectly on my pneumatic cylinder rebuild kit, and the 70 durometer is stiff enough to hold pressure without leaking. The price for a pack of 40 was way better than buying singles at the hardware store.

Ruby I. ★★★★★

I was replacing old seals in a hydraulic cylinder and these o-rings fit perfectly with their 7.975-inch inner diameter. The 70 durometer rubber feels sturdy yet pliable, and they handled the hot oil without any issues. Glad I grabbed the 40-pack since I’ll definitely have spares for future jobs.

George ★★★★★

Even after a night in the freezer for a test, these o-rings stayed flexible and seated perfectly. The 70 durometer feels just right for our hydraulic cylinder rebuild.