3/8-inch Copper Washer


2123 in stock

2123 in stock

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3/8-inch Copper Washer to suit Brass Adaptors and Brass Elbows

A 3/8-inch Copper Washer prevents hydraulic oil leakage from brass adaptors and elbows when tightened correctly.

When joining hydraulic connectors a copper washer is not required if connecting parts have a male and female olive inside the connector.

Where only a thread exists then a copper washer and adaptor or elbow are require to stop hydraulic leaks.

Brass elbows and adaptors with copper washers are required for the following equipment

Brass adaptor nuts seal hydraulic lines into components like master cylinders and hydraulic disc brakes.

When connecting dissimilar metals, use copper washers. For example, when combining a brass adaptor with a Dacromet or stainless caliper.

Range of Hydraulic Hose Connectors

  • Long tube nut – zinc
  • Short tube nut – zinc
  • Adaptor nut – Brass
  • American Caliper tapered elbow – Brass
  • Australian non-tapered elbow – suits all Australian Calipers used on 13 and 14-inch wheels – brass
  • 3-Way Brass Block – brass
  • 4-Way Brass block – brass

If you find your disc brakes or hydraulic cylinder leaking, you have likely screwed the 3/8 inch nut on your hydraulic lines directly into a component that requires an adaptor nut to complete termination.

Your hydraulic line connector is like to require an olive flange.

If you have not installed an olive flange, your connection will leak.

Calipers do not have olive flanges; therefore, you need an adaptor nut.

Use Teflon tape used on all fittings.

Yes, brass on brass connections should not leak, but it is better to be safe than sorry.

If you are in doubt, contact us via our email address.

Finally, brass is not a suitable metal for bonding; hence the use of Teflon tape is recommended,

Additional information

Weight0.1 kg
Dimensions2 × 2 × 2 cm


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