Westward
Westward 6XZ88 Replacement Pipe Die NPT 1 1/4 in 11 1/2 TPI
Replacement pipe die cuts 11 1/2 TPI NPT threads on galvanised steel and iron pipe for handheld threaders
- TypeDrain Components
- Cuts clean NPT threads with 11 1/2 TPI precision
- Four alloy-steel dies share the load for longer life
- Right-hand thread direction matches standard pipe fittings
- Works with Westward 4YR89 die head on handheld threaders
- Built for galvanised steel and iron pipe applications
Replacement pipe die for NPT threads
This Westward 6XZ88 die cuts National Pipe Taper threads on galvanised steel or iron pipe. It fits 1 1/4 inch pipe and works with right-hand thread direction. The die is designed for use with Westward handheld manual and power threaders.
Practical limits of the NPT interface
The die produces 11 1/2 threads per inch, which is the fixed pitch for this pipe size under the NPT standard. It cannot cut other thread forms or pitches, so the installer must confirm the required thread specification before use.
Four-die alloy-steel set decides fit
The set contains four alloy-steel dies that mount in the compatible Westward die head (Grainger part 4YR89). If the threader uses a different die head, this set will not fit and cannot be used.
Highlights
- Cuts clean NPT threads with 11 1/2 TPI precision
- Four alloy-steel dies share the load for longer life
- Right-hand thread direction matches standard pipe fittings
- Works with Westward 4YR89 die head on handheld threaders
- Built for galvanised steel and iron pipe applications
Specifications
| Type | Drain Components |
|---|---|
| Brand | Westward |
| Model | 6XZ88 |
Questions about this item
Should I choose the 1 1/4 in NPT die or a different size for my pipe?
Select the 1 1/4 in NPT die when threading 1 1/4 in galvanized steel or iron pipe; the 11 1/2 TPI pitch matches the NPT standard for that diameter.
What does the 11 1/2 TPI figure mean once the die is in my threader?
It means each inch of thread cut on the pipe will have 11 1/2 threads, producing the correct National Pipe Taper profile for a pressure-tight seal.
Will this die work with my handheld threader and what does the 4YR89 compatibility cap?
The die fits Westward handheld manual and power threaders using the 4YR89 die head; it is limited to right-hand NPT threads on 1 1/4 in pipe.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
Taylor Made 12" x 18" Jolly Roger Novelty Flag 1818 marine electronic
- Accessories



