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Black rectangular Buna-N O-rings in bulk pack of 100

Zoro Select

Zoro Select Buna-N O-Ring Dash 013 PK100

SKU CH-J5W2-DNH36

Pack of 100 Buna-N O-rings with rectangular cross-section, 0.4 in inside diameter, 0.07 in width, 70A durometer, operating from -40 to 250 °F, FDA approved

  • FDA-approved Buna-N material suits food-contact sealing
  • Metal-detectable design aids contamination control in processing lines
  • Temperature range -40 °F to 250 °F covers cold storage to high-heat applications
  • 70A durometer provides medium-hard resilience for reliable compression sealing
  • Pack of 100 square-profile rings simplifies bulk maintenance stocking

Zoro Select Buna-N O-Ring Pack

This pack contains 100 square-profile Buna-N O-rings in dash size 013. Each ring has a nominal inside diameter of 7/16 in and a nominal width of 1/16 in. The material carries a 70A durometer rating for medium-hard sealing performance. They are coloured black and approved for FDA use.

Suits Static Sealing Tasks

These rings suit maintenance teams needing FDA-approved Buna-N seals for static glands in the dash 013 envelope. They are not X-ray detectable, so inspectors relying on X-ray detection should look elsewhere. The rectangular cross section also means they will not fit standard round-groove housings designed for circular-section rings.

Build Integration

The 0.4 in actual inside diameter and 0.07 in actual width sit in a standard dash 013 groove without modification. Buna-N handles temperatures from -40 to 250 degrees F, freeing the designer from specifying separate high- and low-temperature compounds. Metal detectability aids foreign-object control on food or pharmaceutical lines.

Highlights

  • FDA-approved Buna-N material suits food-contact sealing
  • Metal-detectable design aids contamination control in processing lines
  • Temperature range -40 °F to 250 °F covers cold storage to high-heat applications
  • 70A durometer provides medium-hard resilience for reliable compression sealing
  • Pack of 100 square-profile rings simplifies bulk maintenance stocking

Specifications

BrandZORO SELECT

Questions about this item

What groove dimensions match the .4 in actual inside diameter and .07 in cross-section of this Buna-N O-ring?

The ring seats in a groove with a .4 in nominal bore and .07 in radial depth so the rectangular profile compresses evenly at 70A durometer.

Can these dash 013 rings replace older 7/16 in ID round-section seals in the same gland?

The rectangular cross-section changes the fill ratio so the gland must be machined for a .07 in square profile rather than a round cord.

How do I confirm the 70A durometer rings are sealing correctly after installation?

Pressurise the system to working pressure and verify zero leakage; the black Buna-N material stays flexible from -40 to 250 °F.

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