Harbor Freight Tools


Nitrile O-Ring Assortment, 225 Piece

O-rings constructed of durable nitrile rubber

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This handy assortment of O-rings includes 18 of the most commonly used SAE sizes to accommodate a wide variety of applications! The nitrile O-rings are resistant to heat, high/low temperature, air, water, petroleum products, mineral oil and hydraulic fluids, natural gases, kerosene, silicon fluids, non-aromatic fuels and solvents. Great for plumbing, hydraulics, air, gas connections and man industrial applications, this set of O-rings comes neatly organized in a PVC storage case for easy portability to any job!

  • Nitrile rings resist heat, most petroleum and silicone fluids, hydraulic and non-aromatic fuels, and solvents
  • Makes an excellent compression set

Nitrile Molded Rubber
SAE or Metric
Shipping Weight
0.30 lb.
(10) 3/32 in.x9/128 in., (20) 1/8 in.x1/16 in.,(20) 5/32 in.x1/16 in., (20) 3/16 in.x1/16 in., (15) 7/32 in.x1/16 in., (15) 1/4 in.x1/16 in., (10) 9/16 in.x3/32 in., (10) 5/8 in.x3/32 in., (10) 11/16 in.x3/32 in., (10) 3/4 in.x3/32 in., (10) 3/4 in.x1/8 in., (10) 13/16 in.x1/8 in., (15) 5/16 in.x1/16 in., (10) 3/8 in.x1/16 in., (10) 5/8 in.x1/16 in., (10) 3/8 in.x3/32 in., (10) 7/16 in.x3/32 in., (10) 1/2 in.x3/32 in.
Note: Specifications are approximate and subject to change

100% Satisfaction Guarantee! If for ANY reason you are not satisfied with this item, you may return it within 90 days for a full refund or replacement.