Window 7 users: Hit "log In" to see if your computer is secure and can view the HTTPS:// secure connection, SSL. If not, please call in your O-Ring order. 

8am-4pm Pacific Mon-Fri | 208-413-6377


-436 BV75 Brown FKM (Viton, Fluorocarbon) 75 Duro O-Rings


Quantity Discount Prices

  • Model: BV75436
  • 0 in Stock
  • 5-7/8"ID X 6-3/8"OD X 1/4"CS
  • Actual: 5.850"ID X 0.275"CS
  • Metric: 148.59mm ID X 6.99mm CS
  • PDF Data Sheets

O-ring Size: 5 7/8"ID X 6 3/8"OD X 1/4"CS

Viton O-Rings 75 Durometer (Fluorocarbon, FKM):

A chemical resistant Viton® (Fluorocarbon Elastomer) compound rubber has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. Low temperature resistance is normally not favorable and for static applications is limited to approximately –15°F. Under dynamic conditions, the lowest service temperature is between 5°F and 0°F. Gas permeability is very low and similar to that of butyl rubber.

Chemical Resistance:

  • Mineral oil and grease, low swelling in ASTM oil No. 1, and IRM 902 and IRM 903 oils
  • Hydraulic Oil, Petroleum Base
  • Non-flammable hydraulic fuels in the group HFD
  • 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, also fuels with methanol content
  • Liquefied Petroleum Gas (LPG)
  • Natural Gas
  • Propane
  • Diesel Oil
  • High vacuum
  • Very good ozone, weather and aging resistance.

Not Compatible With:

  • Glycol based brake fluids
  • Ammonia gas, amines, alkalis
  • Brake Fluid
  • Acetone
  • Superheated steam
  • Low molecular organic acids (formic and acetic acids)
  • Skydrol 500
  • Methyl Ethyl Ketone

Compound Info:

  • Dupont-Dow Viton®, with exceptional chemical resistance
  • Color: Brown
  • Duro: 75
  • FDA: No
  • ASTM D2000-01 Grade M6HK810 A1-10 B38 C12 C20 EF31 EO88 Z1=75+/-5 Durometer Z2=Low Temperature TR10=-15.8C
  • Designed to meet or exceed the properties of these popular Viton® Compounds:
    • V884-75, V708-75, 16207, V35-75, 9005-75, F13327 and 9505-75

Operating temperature: -40° to +400°F

Be the first to write a review.  Write a Review.

Stock O-Rings in over 20 different compounds and durometers the following six are the standard rubber materials in a range of durometers (Shore A) hardness to satisfy practically any service condition:

Viton® / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance.

Buna-N / Nitrile / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.

Ethylene-Propylene / EPDM: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications.

Fluorosilicone / FVMQ: Fluorosilicone (-75º to +400ºF) combines the good high and low temperature stability of silicones with the fuel, oil, and solvent resistance of fluorocarbons. FVMQ is unparalleled for aerospace fuel systems, auto fuel emission control systems and to meet or exceed government, military, aerospace, automotive, industrial and commercial specifications. However, due to relatively low tear strength, high friction and limited abrasion resistance of these materials, they are generally not used in dynamic applications. They are also not recommended for exposure to brake fluids, hydrazine, or ketones.

Silicone / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F.

Neoprene® / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®.