What is a bulkhead nut used for?

A bulkhead nut is used to secure a fitting that passes through a panel, such as a firewall or fuel tank. It allows for a clean, sealed connection on both sides of the panel.

What does '-3AN' refer to on this nut?

The '-3AN' designation refers to the size of the fitting it's designed to work with. In this case, it corresponds to a 3/8"-24 thread size, commonly used for fuel and oil lines.

Does this nut come with the corresponding bulkhead fitting?

No, the bulkhead nut is sold separately from the bulkhead fitting. You will need to purchase both components to create a complete bulkhead connection.

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Specifications

Brand: Vibrant
Part #: 10690
UPC: 690092145972

Vibrant -3AN Bulkhead Nut - Aluminum

Name: Vibrant -3AN Bulkhead Nut - Aluminum
Brand: Vibrant
SKU: vibrant-vibrant-3an-bulkhead-nut-aluminum-t14-4310291
Price: 7.54 USD
Availability: InStock

$7.54

In Stock

Vibrant -3AN Bulkhead Nut - Aluminum. Connects -3AN fittings through panels with a secure, leak-free seal.

Key Features

Fits -3AN fittings, suitable for 3/8"-24 threads.
Constructed from lightweight 6061 aluminum alloy.
Features a black anodized finish for corrosion resistance.
Designed to create a secure, anti-leak seal when used with a bulkhead fitting.
Works with popular oil pumps, fuel pumps, and fuel filters.
One Year Limited Warranty.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This Vibrant bulkhead nut is made from 6061 aluminum alloy, which keeps the weight down. It's designed to work with -3AN fittings and allows you to pass a hose or fitting through a panel, like a firewall or fuel tank, and secure it with a nut on the other side. The black anodized finish helps resist corrosion and gives it a clean look. This nut is part of a two-piece system; you'll need the corresponding bulkhead fitting to complete the connection.

The -3AN size means it's meant for fittings with a 3/8"-24 thread. This size is common for fuel lines, oil lines, and vacuum lines on custom builds or repairs. The design aims for a smooth flow path and a reliable, anti-leak seal once properly installed with the bulkhead fitting.