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Three rubber O-rings in clear bag, large torus shape

MIDWEST FASTENER CORP

MIDWEST FASTENER CORP 78263 sealer

SKU CH-S9BT-XYKGP

A pack of three extra-large rubber O-rings designed to create a reliable seal between assembled parts

  • Three-pack convenience keeps spare O-rings ready for multiple repairs
  • Rubber elastomer material compresses to form reliable seals in grooves
  • Torus-shaped gasket design seats securely between mating surfaces
  • X-Large dimensions suit applications needing bigger sealing rings
  • Midwest Fastener Corp brand supplies consistent manufacturing quality

Three-pack X-large O-rings

This three-pack supplies 7-3/4" x 8" x 1/8" rubber O-rings for sealing joints in automotive and industrial assemblies. Each ring is a toroidal elastomer gasket that compresses in a groove to block fluid or gas leakage. The pack suits maintenance crews who need multiple spares on hand. Part number 78263 identifies the set.

Mechanics sealing large flanges

Technicians repairing hydraulic cylinders, pump housings or oversize pipe flanges will find the dimensions match common X-large groove standards. The material resists compression set in static sealing duties. Buyers who need smaller diameters, metric sizes or high-temperature compounds should look at other listings. This pack only contains the three X-large rings.

Ready-to-install sealing set

The three-ring bundle lets a technician replace all seals on a multi-groove component without waiting for re-orders. No lubricant, installation tool or adhesive is included, so the installer must supply compatible grease and sizing verification. Having three identical rings reduces downtime during scheduled overhauls.

Highlights

  • Three-pack convenience keeps spare O-rings ready for multiple repairs
  • Rubber elastomer material compresses to form reliable seals in grooves
  • Torus-shaped gasket design seats securely between mating surfaces
  • X-Large dimensions suit applications needing bigger sealing rings
  • Midwest Fastener Corp brand supplies consistent manufacturing quality

Specifications

BrandMIDWEST FASTENER

Questions about this item

What groove dimensions are required for the 7-3/4" x 8" x 1/8" O-rings to seal correctly?

The groove must match the 1/8 inch cross-section and the 7-3/4 inch by 8 inch inner diameter so the torus compresses evenly between the two mating surfaces.

Can these O-rings replace smaller seals already in my assembly?

No, each ring is sized at 7-3/4 inches by 8 inches with a 1/8 inch cross-section, so they only fit grooves cut to those exact dimensions.

How do I verify the seal is working after installation?

Pressurise the system to its normal operating level and check the joint for any fluid or gas escape; a properly seated ring shows zero leakage at the interface.

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