FKM O-Rings Selection Guide
FKM o-rings AKA Viton ® o-rings offer an impressive range of chemical compatibility and high temperature resistance up to 400F, with hundreds of specialty compounds available for specific application performance, making FKM an ideal o-ring material choice in a number of applications. Marco Rubber leverages the world's largest inventory network of FKM o-rings faster responses and shorter lead times as well as metric FKM o-rings and custom size FKM o-rings without tooling fees. FKM o-rings are widely used in chemical, automotive, aerospace and industrial applications due to improved chemical resistance and high temperature performance compared to other basic materials. Between Marco's enormous inventory, direct purchasing power, and responsive service, all your FKM or Viton ® o-ring are here.
FKM Compatibility and Order Online FKM O-rings In Stock for Chemical and Temperature Resistance
Marco carries a wide range of FKM material, including types A, B, F, GLT, GFLT, XLT, ULT, ETP, TBR.
FKM Viton ® Type | A | B | F | GF | GLT | GFLT | XLT | ULT | ETP | Aflas ® | BRFKM |
|---|---|---|---|---|---|---|---|---|---|---|---|
Marco Commodity Compound number | V1000 | V1032 | V1088 | V1081 | V1038 | V1033 | V1086 | V1166 | V1020 | L1000 | L1010 |
| Relative Pricing |  | | | | | | | | | | |
| Availability |  |  | |  | | |  | |  | | |
H2S % | 2 | 5 | 5 | 5 | 5 | 5 | 10 | 10 | 5 | 20 | 40 |
High Temperature Performance F° (C°) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 437 (225) | 450 (232) | 450 (232) |
Low Temperature Performance F° (C°) | -15 (-26) | -11 (-24) | 1 (-17) | 3 (-16) | -40 (-40) | -29 (-34) | -54 (-48) | -65 (-54) | -6 (-21) | 25 (-4) | 1 (-17) |
| TR-10 Low Temperature Flexibility F° (C°) | 1 (-17) | 7 (-14) | 20 (-7) | 21 (-6) | -22 (-30) | -11 (-24) | -40 (-40) | -49 (-45) | 12 (-11) | 37 (3) | 20 (-7) |
| Strong Base, high pH, Caustic, Amines |  | | | | | | | |  | | |
| Low Molecular Weight Carbonyls 100% concentration (MTBB, MBK, MIBK, etc.) | | | | | | | | | | | |
| Engine Lubricating Oil, SG and SH | | | |  | | | | | | | |
| Aqueous fluids, steam, mineral acids (H2So4, HNO2) | | | | | | | | | | | |
| Aromatic Hydrocarbons (toluene, etc.) | | | | | | | | | | | |
| Automotive Fuels Oxygenated with MEOH, ETOH, MTBE, etc. | | | | | | | | | | | |
| Engine Lubricating Oil, SE and SF | | | | | | | | | | | |
| Resistance to Compression Set | | | | | | | | | | | |
| Automotive and Most Aviation Fuels | | | | | | | | | | | |
FKM O-Ring & FKM Material Specifications
Marco has hundreds of other specialty FKM compounds available. Contact a Marco Sales Consultant or Engineer for more information.
| Marco Compound Number | Datasheet | Hardness (Shore A) | Color | Low Temp. °F (°C) | High Temp. °F (°C) | Features |
|---|---|---|---|---|---|---|
| Scroll Down for More | ||||||
| 75 | Black | -15 (-26) | 437 (225) | General purpose, low cost & high inventory FKM | ||
| 75 | Black | -15 (-26) | 437 (225) | AMS-R-83248 M83248/1-### PER MIL-R-83248 TY-1 CL-1, available in a UL recognized grade, compare to Parker V0747-75 | ||
| 75 | Brown | -15 (-26) | 437 (225) | Brown FKM Viton, improved oxidation resistance, compare to Parker V884-75 | ||
| 90 | Black | -15 (-26) | 437 (225) | M83248/2-### PER MIL-R-83248C TY 1 CL 2, compare to Parker V0709-90 | ||
| 75 | Black | -40 (-40) | 437 (225) | M83485/1-XXX PER MIL-R-83485 GLT-type FKM Improved low temp resistance, compare to Parker VM835-75 | ||
| 90 | Black | -15 (-26) | 437 (225) | General purpose high durometer, good in high pressure and dynamic applications, compare to Parker VA153-90 | ||
| 50 | Black | -15 (-26) | 437 (225) | General purpose softer FKM, compare to Parker V0986-50 | ||
| 60 | Black | -15 (-26) | 437 (225) | General purpose softer FKM, compare to Parker V0769-60 and Parco 9009-60 | ||
| 75 | White | -15 (-26) | 437 (225) | White FKM, improved oxidation resistance, compare to Parker V1033-70 | ||
| 75 | Black | -15 (-26) | 437 (225) | Internally lubricated with PTFE, reduces surface friction and sticking, similar to Parker V0848-75 | ||
| 75 | Black | -6 (-21) | 437 (225) | Viton® ETP, base resistant , best chemically resistant FKM, compare to Parker V1260-75 | ||
| 75 | Black | -29 (-34) | 437 (225) | Viton GFLT® recommended for Oxygenated Automotive Fuels (containing MeOH, EtOH, MTBE, etc. and Aromatic Hydrocarbon Process Fluid Chemicals. Compare to Parker V7594B | ||
| 75 | Black | -40 (-40) | 437 (225) | Viton GLT® Low temperature resistance, improved Water, Steam and Mineral Acids resistance | ||
| 95 | Black | -15 (-26) | 437 (225) | Very hard extrusion resistant type A FKM, compare to Parker V1238-95 and Parco 9021-95 | ||
| 75 | Black | -15 (-26) | 437 (225) | FDA and 3A compliant | ||
| 75 | Black | 3 (-16) | 437 (225) | Viton® GF-S best value for widest chemical resistance FKM | ||
| 90 | Black | -40 (-40) | 437 (225) | AED and extrusion resistant GLT type FKM | ||
| 75 | Black | -54 (-48) | 437 (225) | Extended low temperature FKM, Wide chemical resistance including H2S and Oxygenated fuels, compare to Parker V1289-75 | ||
| 75 | Black | +1 (-17) | 437 (225) | Viton® F material for increased solvent and general chemical resistance | ||
| 90 | Black | -40 (-40) | 437 (225) | AED resistant Viton GLT®, Norsok M710 and NACE TM0297 tested | ||
| 70 | White | -15 (-26) | 437 (225) | USP class VI medical grade, USDA 3A and FDA compliant | ||
| 70 | Black | -15 (-26) | 437 (225) | Metal detectable, FDA compliant type A FKM | ||
| 90 | Black | -50 (-46) | 437 (225) | AED resistant, Norsok M710 and NACE T0297 tested Wide chemical resistance including H2S and Oxygenated fuels. | ||
| 70 | Black | -54 (-48) | 437 (225) | Ultra-low temperature FKM commercial grade Wide chemical resistance including H2S and Oxygenated fuels. | ||
| 60 | Black | -40 (-40) | 437 (225) | Terpolymer GLT type for low temperature applications | ||
| 75 | Brown | -15 (-26) | 437 (225) | NSF51 compliant for food contact |
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Don't see what you need? Please contact an FKM o-ring application engineer for assistance in selecting the compound that provides the best combination of performance and price for your specific application.
