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Black rectangular Viton O-rings, dash 111, 25 pack

Zoro Select

Zoro Select Square Profile Viton O-Ring Dash 111 PK25

SKU CH-C9TS-CP61J

Pack of 25 Viton O-rings with rectangular cross-section, dash 111 size, FDA approved for -15 to 400°F

  • Viton material resists chemicals and heat up to 400 degrees F
  • Square rectangular cross-section provides reliable sealing in static applications
  • FDA approved for food and pharmaceutical contact safety
  • Medium-hard 75A durometer balances compression set resistance with installation ease
  • Pack of 25 dash-111 rings covers multiple maintenance tasks

Square Profile Viton O-Ring Dash 111

This pack contains 25 black Viton O-rings with a square cross-section and dash number 111. They are made for sealing tasks in automotive and industrial fluid systems where chemical resistance and temperature stability are required. The material is rated for continuous use from -15 to 400 degrees Fahrenheit.

FDA-Approved Metal-Detectable Seal

These rings are FDA approved and metal detectable, making them suitable for food and pharmaceutical process lines where contamination control is mandatory. They are not X-ray detectable, so operations relying solely on X-ray inspection should verify suitability before installation. The medium-hard 75A durometer balances sealing force with installation ease.

Dimensions and Pack Quantity

Each ring has a nominal inside diameter of 7/16 inch and a nominal width of 3/32 inch. Actual measurements are 0.4 inch inside diameter, 0.103 inch width and 0.63 inch outside diameter. The 25-piece pack provides enough units for multiple replacement cycles or for stocking maintenance kits across several machines.

How it compares

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Price $11.99
Typical for this category: the median of 147 items is $11.99.

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Will the 0.103 in actual width fit the groove on my 5/8 in nominal outside diameter housing?

The 0.103 in actual width and 0.63 in actual outside diameter are made for a Dash 111 groove with a 7/16 in nominal inside diameter.

What is the correct way to seat the square-profile ring without twisting the corners?

Lubricate the Viton ring, stretch it evenly over the 0.4 in inside diameter, and press each corner into the groove so the rectangular cross-section sits flat.

When should I replace the pack of 25 rings if the fluid temperature cycles between -15 and 400 degrees F?

Inspect for hardening or surface cracks at each service interval; the 75A durometer Viton resists heat but will eventually lose elasticity after repeated extreme cycles.

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