OSK™ Industrial Boss Seal Kit - 212 Piece Hydraulic SAE - Fluorocarbon Viton®/FKM 90 Duro


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  • Model: K212X20V90-OSK
  • 3 in Stock
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O-Ring BOSS Hydraulic SAE 212 Pieces Oring Seal Kit Viton®/FKM 90 Duro for Boss SAE Boss straight thread tube fittings 

Maximize your sealing solutions with our Industrial Boss Seal Kit #K212X20V90-OSK. This comprehensive kit includes 212 high-quality Viton®/FKM 90 durometer O-Rings in 20 different sizes, ensuring you have the right seal for any boss application.

Key Features:

  • Material: 90 Durometer Viton®/FKM - Known for its exceptional resistance to a wide range of chemicals and excellent high-temperature performance.
  • Versatility: Ideal for high-pressure applications in hydraulic and pneumatic systems, ensuring reliable performance and durability.
  • Comprehensive Selection: Contains 212 O-Rings across 20 different sizes, offering an excellent cost-per-size value.

Kit Includes: -10 each: -901, -902, -903, -904, -911, -912, -913, -914, -916, -918, -920, -924, -928, -932 -12 each: -905, -906, -907, -908, -909, -910

Material Benefits:

  • Temperature Range: -20°F to +400°F
  • Resistance: Outstanding resistance to a broad spectrum of chemicals, including petroleum-based oils, fuels, mineral oils, and greases.
  • Durability: Excellent high-temperature performance and resistance to environmental exposure such as ozone and weathering.
  • Applications: Suitable for automotive, aerospace, and industrial applications where high-performance sealing is required.

Applications include: Hydraulic Oil, Petroleum Base, Silicone oil and grease, Mineral and vegetable oil and grease, Aliphatic hydrocarbons (fuel, butane, propane, natural gas), Aromatic hydrocarbons (benzene, toluene), Chlorinated hydrocarbons (trichlorethylene and carbon tetrachloride), Chlorine Water, Gasoline, Fuels, Liquefied Petroleum Gas (LPG), Natural Gas, Propane, Diesel Oil, High vacuum, ozone and weather.

Avoid: Ketones, hot water, steam, Brake Fluid, alkalis, and Skydrol® fluids, Ammonia gas, amines, alkalis,  Skydrol 500,  Methyl Ethyl Ketone (MEK),  Low molecular organic acids (formic and acetic acids)

Technical Specifications:

  • Fluorocarbon FKM, with exceptional chemical resistance
  • Color: Black
  • Duro: 90
  • FDA: No
  • Color: Black
  • Compliance: Meets or exceeds ASTM D2000 standards for high-performance sealing compounds.

Typical Uses:

  • General purpose sealing
  • Automotive and aerospace applications
  • Hydraulic and pneumatic motors
  • Cylinders, pumps, and valves
  • Boss tube fittings and hydraulic pumping sealing applications

Order your Industrial Boss Seal Kit today and ensure you have the reliability and performance you need for any sealing challenge. At The O-Ring Store, we make getting O-Rings easy!


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Phone 208-413-6377 - Fax 208-413-6719