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Two brown Viton O-rings 6-1/2 inch diameter 1/8 inch cross section

Zoro Select

Zoro Select O-Ring 6-1/2 in Dia 1/8 in W Viton Brown PK2

SKU CH-E6P9-5NKPR

Viton O-ring seals fluids from −15 °F to 400 °F, 6.4 in inside diameter, 0.139 in cross-section, FDA-approved brown, pack of two

  • Viton withstands -15 °F to 400 °F
  • FDA-approved material suits food-contact uses
  • 4 in actual inside diameter fits standard grooves
  • Metal-detectable design aids contamination control
  • Medium-hard 75A durometer resists extrusion

Sealing Ring Specifications

The Zoro Select O-Ring is a Viton seal with a 6-1/2 inch nominal inside diameter and 1/8 inch nominal width. It comes in a brown finish with a 75A durometer hardness rating and carries dash number 260. The actual inside diameter measures 6.4 inches while the actual width is 0.139 inches. This two-pack suits maintenance tasks requiring fluid or gas containment.

Temperature Range and Compliance

The seal operates from -15 degrees to 400 degrees Fahrenheit, replacing lower-tolerance elastomers in high-heat or chemical-exposure scenarios. It is FDA approved for applicable process lines and is metal detectable for safety-critical environments. The upgrade is worth it when existing seals degrade prematurely under thermal cycling or aggressive media.

Installation Verification

Confirm the groove dimensions match the 6.4 inch actual inside diameter and 0.139 inch actual width before ordering. Verify the 6.762 inch actual outside diameter clears the housing bore without interference. Ensure the application temperature stays within the rated range and that Viton compatibility aligns with the process fluids used.

Highlights

  • Viton withstands -15 °F to 400 °F
  • FDA-approved material suits food-contact uses
  • 4 in actual inside diameter fits standard grooves
  • Metal-detectable design aids contamination control
  • Medium-hard 75A durometer resists extrusion

Specifications

BrandZORO SELECT

Questions about this item

What groove dimensions does the 6-1/2 in nominal inside diameter and 1/8 in nominal width O-ring require?

The actual inside diameter is 6.4 in and the actual width is .139 in, so the gland must match those dimensions for a proper seal.

How are these Viton O-rings installed, and what common mistake should be avoided?

Lubricate with compatible grease, stretch evenly over the gland without twisting, and seat fully; the frequent error is twisting the ring during installation, which creates leak paths.

When should the 75A durometer Viton O-rings be replaced in a system cycling between -15 and 400 degrees F?

Inspect at each service interval; replace when the brown material shows surface cracking, permanent compression set, or hardening beyond the original 75A durometer.

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