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RUBBER+DYNAMICS

Hydraulic ORB O-Ring Kit 265-Piece, Buna-N 90 Durometer, SAE 900 Series Boss Fittings – Includes 12 Sizes (#904 to #916) w/Sizing Chart – for Hydraulic Pumps, Valves, Cylinders, Pneumatics

Hydraulic ORB O-Ring Kit 265-Piece, Buna-N 90 Durometer, SAE 900 Series Boss Fittings – Includes 12 Sizes (#904 to #916) w/Sizing Chart – for Hydraulic Pumps, Valves, Cylinders, Pneumatics

Regular price $54.97 USD
Regular price $54.97 USD Sale price
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About This

  • Engineered for High-Pressure Hydraulic Systems – 90 Durometer Buna-N (Nitrile) O-rings provide superior resistance to compression set, tearing, and extrusion under pressure. Harder/denser than standard 70 durometer rings, these perform reliably up to 250°F and as low as -30°F in oil-rich environments.
  • Optimized Quantity Breakdown – More of What You Actually Use – Includes 35 each of the most frequently needed sizes (#904, #905, #906) and higher counts for #907–#909. You get 245 total rings – no wasted sizes, no running out mid-job. Perfect for field service and shop maintenance.
  • Precision Seal for BOSS (ORB) Straight Thread Fittings – Designed specifically for SAE J514 and ISO 11926 ORB ports. The O-ring compresses into the chamfered female port to create a leak-tight mechanical seal – ideal for hydraulic pumps, motors, cylinders, valves, pneumatic systems, and even vacuum pumps.
  • Ready for Shop, Truck, or Jobsite – Fits in standard tool boxes, service vehicles, or hydraulic repair kits. Eliminates downtime from missing or mixed-up O-rings when repairing hydraulic hoses, fittings, or equipment on location.
  • Built-in Sizing Chart : Sizing chart printed for instant identification – no fumbling with calipers or guesswork

Overview

  • Material : Nitrile Rubber
  • Nominal Inside Diameter : Various Inches Inches
  • Item Diameter : Various Inches Inches
  • Brand : RUBBER DYNAMICS
  • Color : Black
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