Threaded Hex Head Bushings Feature a larger male thread on the outside and a smaller female thread on the inside. They allow a smaller pipe to fit into a larger opening, having a hexagonal head for tightening with a wrench. It is a specialized fitting used to connect pipes or valves of two different thread sizes or diameters. They are made as per ASME B16.11 : Forged Fittings, Socket Welding and Threaded, available size range is 1/8″ to 4″. This page provides inch dimensions for this fitting.
Available Dimensions are: A: Length (Minimum), G | Hex Head (Minimum), F : Width of Flats (Nominal).
| NPS | A | F | G |
|---|---|---|---|
| 1/8 | 0.38 | 0.44 | NA |
| 1/4 | 0.44 | 0.62 | 0.1 |
| 3/8 | 0.50 | 0.69 | 0.1 |
| 1/2 | 0.56 | 0.88 | 0.1 |
| 3/4 | 0.62 | 1.06 | 0.2 |
| 1 | 0.75 | 1.38 | 0.2 |
| 1-1/4 | 0.81 | 1.75 | 0.2 |
| 1-1/2 | 0.81 | 2.00 | 0.3 |
| 2 | 0.88 | 2.50 | 0.3 |
| 2-1/2 | 1.06 | 3.00 | 0.3 |
| 3 | 1.12 | 3.50 | 0.4 |
| 4 | 1.25 | 4.62 | 0.5 |
| NPS | A | F | G |
General Notes
Dimensions are in inches.
