When calculating the overall length (OAL) of a hose assembly that has a pipe thread as one or both end connection(s), consideration must be given to thread engagement. For example, using the chart below, a hose assembly with a 1″ male pipe on one end would have 0.66″ added to the OAL to compensate for the length of thread that will be engaged during installation.
| Nominal Pipe Size (in.) | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1-1/4 | 1-1/2 | 2 | 2-1/2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Allowance (in.) (Dim “A”) |
0.40 | 0.41 | 0.53 | 0.55 | 0.66 | 0.68 | 0.68 | 0.70 | 0.93 | 1.01 | 1.09 | 1.18 | 1.20 |