How To Identify Fittings - Getting Fit - Tech

Often found on oil pressure gauges, this is another style of compression fitting. Note the male end is pipe.

After the nut is tightened, the sleeve compresses and grips the tubing. The tube protrudes slightly because it seats in the other portion of the fitting.

Often called a Ford nut, this is a compression fitting without a sleeve. It was used on early Ford vacuum lines.

Referred to as a banjo design because of its shape, these fittings can swivel to make connections easier. They are often found in the brake system. Gaskets are used on both sides of the banjo to prevent leaks. This one accepts an AN fitting.

In a banjo fitting, fluid flows through the center of the attachment bolt (note the hole) and an annular groove cut into the housing.

This is a cool piece. It accepts a standard 3/16-inch inverted flare brake line and connects to a -3 flex hose. The groove is for a brake line clip to lock the fitting securely in a mounting tab.

This adapter would be used to connect a female -3 AN line to a wheel cylinder or caliper that has a female 3/16-inch inverted flare port.

Another handy adapter: a tee to allow the use of an 1/8-inch pipe hydraulic stoplight switch in -3 AN lines.

Barb fittings are commonly found in fuel lines. They accommodate different size hose, and may have male or female ends.