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186W12 - Western Enterprises 7/8 Inch Stat-O-Seal Bonded Washer

Packaging: pack of 1
$48.87/EA $30.11/pack of 1 only $30.11/EASave 38%

Usually ships within 3-5 business days

OVERVIEW

Heavy-Duty 7/8" Bonded Sealing Washer

When you need a seal that won't quit, reach for the Western Enterprises 186W12 Stat-O-Seal. Designed for 7/8-inch bolts and fittings, this isn't your average hardware store washer. It is a specialized bonded seal that combines the strength of a metal washer with the sealing power of a rubber O-ring. This "best of both worlds" design is perfect for welders and fabricators working with high-pressure gas lines, hydraulic systems, or critical fluid connections where a standard copper or crush washer just won't hold up.

The magic of the Stat-O-Seal lies in its self-centering, one-piece design. The metal retainer prevents the rubber seal from being crushed or blown out under pressure, a common failure point in high-stress applications. When you tighten down a fitting with a Stat-O-Seal, the rubber is compressed into the threads and against the face of the port, creating a dead-tight seal that resists vibration and temperature fluctuations. It is the professional's choice for sealing banjo fittings, regulator inlets, and manifold blocks.

Don't let a fifty-cent washer ruin a thousand-dollar job. Leaks can cause downtime, inaccurate weld gases, and messy cleanups. By using the 186W12, you ensure a secure, professional connection every time. These washers are often reusable (depending on condition), making them a cost-effective addition to any repair kit. Whether you are fixing a leaky hydraulic line on a shop press or securing a gas manifold, the Western Enterprises Stat-O-Seal provides the confidence that your connections are secure and leak-free.

Additional Information
Brand:Western Enterprises
Packaging Description:1 Per Ea
Product Type:Stat-O-Seal, Bonded Sealing Washer
Size:7/8"
Material:Metal Retainer with Elastomer Seal
Application:Gas Manifolds, High Pressure Fittings, Leak Prevention

INCLUDED

  • 1 x 7/8" Stat-O-Seal Washer

APPLICATIONS

  • Gas manifold connections
  • High-pressure regulator fittings
  • Hydraulic system sealing
  • Pneumatic equipment repair
  • Automotive and industrial fluid lines
  • Sealing bolts and banjo fittings

FAQ

A Stat-O-Seal features a bonded elastomeric ring inside a metal retainer, providing active sealing capability that a standard flat washer cannot match.

The 186W12 is designed for 7/8-inch fittings or bolts.

While Stat-O-Seals are durable, it is generally recommended to replace them if the rubber shows signs of wear, cracking, or permanent deformation after removal.

Western Enterprises components are typically cleaned for gas service, but you should verify the specific elastomer compatibility with oxygen if used in high-pressure oxygen systems.

No, the Stat-O-Seal is designed to seal mechanically without the need for thread tape or liquid sealants on the washer face.

Stat-O-Seals typically use a steel or aluminum retainer with a synthetic rubber (like Buna-N or Viton) seal. Check specific batch specs for exact materials.

No, the Stat-O-Seal seals the face of the connection, not the threads. It requires a flat surface to seal against.

This part is manufactured by Western Enterprises, a leading brand in gas control equipment.