70A HNBR Boss O-Ring | SAE ORB Hydrogenated Nitrile O-Ring | HydraPak Seals, Inc
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3-903H70

70A HNBR O-Ring for Straight Thread Boss Fitting, 0.301 X 0.429 X 0.064, AS568-903

Part #:
3-903H70
Min. Order Qty: 1

Brand: HPSI

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HPSI

70A HNBR Boss O-Rings are designed for SAE straight-thread O-ring Boss (ORB) fittings in hydraulic systems. Made from 70A hydrogenated nitrile butadiene rubber (HNBR), also known as highly saturated nitrile, they provide enhanced resistance to heat, oil, fuel, and ozone compared with standard 70A nitrile. Their increased durability makes them well suited for demanding hydraulic applications. Not recommended for use with phosphate ester fluids. Bulk discounts are available for large quantity purchases.

Cross Section      :      0.064 in
Dash Number      :      903
Inside Diameter      :      0.301 in
Material      :      70A HNBR
Outside Diameter      :      0.429 in
Part Number      :      (Prefix)-(Dash #)(HNBR)
Temperature Range      :      -40° to 240°F
  • 70A hydrogenated nitrile butadiene rubber (HNBR) construction
  • Also known as highly saturated nitrile
  • Designed for SAE straight-thread O-ring Boss (ORB) fittings
  • Enhanced resistance to heat, oil, fuel, and ozone compared with standard 70A nitrile
  • Increased durability supports demanding applications
  • Suitable for hydraulic systems
  • Not recommended for use with phosphate ester fluids
  • Bulk discounts available for large quantity purchases