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Acid Resistant Metric Brown O-Ring FKM For Aircraft Engines Seals Systems

Acid Resistant Metric Brown O-Ring FKM For Aircraft Engines Seals Systems

Acid Resistant  Metric Brown O-Ring FKM For Aircraft Engines Seals Systems
Product Details:
Place of Origin: Guangdong,China
Brand Name: ORK
Certification: FDA,ROHS,ISO9001,TS16949
Model Number: Customized
Payment & Shipping Terms:
Minimum Order Quantity: 100 USD
Price: 0.006 ~ 7 USD / PCS
Packaging Details: PE inside , Carton Outside
Delivery Time: 7-45 work days
Payment Terms: L/C, L/C,Paypal
Supply Ability: 30000000 PCS / Month
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Detailed Product Description
Material: FKM Hardness: 30 ~ 90 Shore
Color: Black Brown Green RED Heat Range: -40 ~180 ℃
Acild Resistant: Acceptable Size: Any Size Acceptable
Lead Time: 5-8 Work Days Standard: AS568 BS1516
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FKM o ring cord


fluorine rubber o ring

Acid Resistant  Metric Brown O-Ring FKM For Aircraft Engines Seals Systems
FKM® (fluorocarbon rubber) has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals making it a good choice for an o-ring material.
Low temperature resistance is normally not favorable and for static applications is limited to approximately -15 °F (-26 °C) although in certain situations it is suitable down to -40 °F (-40 °C) Under dynamic conditions, the lowest service temperature is between 5 °F and 0 °F (-15 °C and -18 °C).
Gas permeability is very low and similar to that of butyl rubber. Special fluorocarbon compounds exhibit an improved resistance to acids, fuels, water and steam. 
ASTM D1418 Designation: FKM
ASTM D2000/SAE Type, Class: HK
ORK Compound Designation: VT
Standard Color: Black
Description: Combining high temperature resistance with outstanding chemical resistance, Fluorocarbon-based compounds approach the ideal for a universal O-ring material.
Key Use(s): Seals for aircraft engines. Seals for automotive fuel handling systems. High temperature/low compression set applications. Wide chemical exposure situations. Hard vacuum service.
Temperature Range
Standard Compound: -13° to +446°F
Special Compound: -40° to +446°F
Hardness (Shore A): 55 to 90.
Features:High fluorine grades offer higher resistance to swell in high octane and oxygenated fuel blends. This give superior performance in Ethanol/Methanol blended gasoline. Base resistant grades offer improved resistance to amine based oil protectants found in new transmission oils.  Also, improved resistant to steam for higher temperature services. Low temperature bases can improve performance to -40°F.
New Polymers being offered have improved chemical resistance and low temperature performance.
FKM® Extreme™ ETP offers similar chemical compatibility as Kalrez™ with temperature performance with a TR(10) of -40°F and brittleness to -76°.
Limitations: Fluorocarbons (FKM®s) are not recommended for exposure to ketones, amines, low molecular weight esters and ethers, nitro hydrocarbons, hot hydrofluoric or chlorosulfonic acids, or Skydrol® fluids. They are also not recommended for situations requiring good low temperature flexibility.
Acid Resistant  Metric Brown O-Ring FKM For Aircraft Engines Seals Systems 0

FKM® O-Ring General Attributes

  • Excellent Heat resistance
  • Excellent resistance to oils
  • Low compression set
  • Good fuel resistance
  • Excellent ozone and weather resistance

Common Applications for FKM® O-Rings

  • Engine Oil Seals
  • Fuel Systems
  • High Temperature Seals
  • Petrochemical Systems

Available Varieties


Flurocarbon CompuondAvailable SpecificationsKey CharacteristicsAverage Temperature Ranges
CommercialASTM D2000Available in black or brown. Excellent resistance to head and a wide range of chemicals.5° to 446°F
AMS7276AMS 7276,
Mil-R-83248 CL1,
Dwg AS3208,
Meets AMS7276. Excellent resistance to heat, engine oils and lubricants, ozone and weathering. Low compression set and good fuel resistance.-13° to 392°F
AMS7259AMS 7259,
Mil-R-83248 CL2,
Dwg AS3581
Meets AMS7259. Similar to AMS 7276 above except in 90-durometer hardness.-13° to 392°F
M83485/1 GLT TypeM84385/1,
Meets AMS-R-83485. Excellent heat resistance and low temperature performance. GLT Type FKM.-35° to 400°F
M7HK 710 A1-10
EF31 Z1 Z2 Z3
GFLT based FKM. Good for low temp with improved chemical resistance. Listed for fuel/alcohol applications.-31° to 392°F
SAE J200
M2HK 710 A1-10
B38 EF31 F15 Z
FDA, USDA, and NSF grades available.-4° to 392°F
FKM Extreme Extreme chemical service. Strong bases and amines. Peroxide cured.-4° to 392°F
FKM V91A Low Temperature applications. Explosive decompression resistant.-51° to 437°F


ORK is a leading supplier of FKM® O-rings and custom molded seals. We offer both genuine FKM® and standard fluorocarbon materials for general purpose and high performance applications. Selecting the type of FKM® that best fits your application is important, but it isn't complicated, and help is available from ORK. We also offer gaskets made out of FKM®

Contact Details
Dongguan Ruichen Sealing Co., Ltd.

Contact Person: aaron

Tel: +8618024335478

Send your inquiry directly to us
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