Aluminum 4.0 inch swivel female NH (NST) to 4.0 inch rigid male NPT adapter.

This adapter is hard powdered coated aluminum alloy. Available in standard black. This product is "Made In The USA".

Our adapters typically ship the same or next business day from one of 13 warehouses across the country.

Connections:

• The female size of this adapter will only connect to a 4.0" male National Hose (NH) or National Standard Thread (NST).
• The male size of this adapter will only connect to a 4.0" female National Pipe Straight Hose (NPSH) or National Pipe Tapered (NPT). For example, PVC or metal pipe fitting.

National Hose (NH) aka National Standard Thread (NST) is often referred to as “fire hose thread” as this is by far the most common thread in use today by fire departments, however there are "local" exceptions.

NPSH and NPT are more common in industrial applications.

For more information on the different types of threads please visit our adapter guide.

To maintain our goal of 24 hour shipping and faster transit times, we may substitute an equal aluminum adapter with a black anodized finish.