The most common thread type in use by fire departments today is NST or National Standard Thread. It is often referred to as “fire hose thread”. NST also goes by the initials NH or National Hose. It can even be referred to as NHT or National Hose Thread but NST or NH is more common these days. NH = NST.
- Material: Cast Brass
- Lug: Pin Lug
- Female Thread: NPT (National Pipe Tapered)
- Female Swivel Thread: NST (National Hose Thread)
- Swivel Thread Size: 2-1/2″
- Female Thread Size: 2-1/2″
