

Use the tables below to find the proper part number for the male-by-male adapter that meets your needs:
| Thread Type | Connection Size (in.) | 1/16 " | 1/8 " | 1/4 " | 3/8 " | 1/2 " | 3/4 " | 1 " |
|---|---|---|---|---|---|---|---|---|
| NPT Male | 1/16 " | HNM1-NM1 | HNM2-NM1 | --- | --- | --- | --- | --- |
| NPT Male | 1/8 " | HNM2-NM1 | HNM2-NM2 | --- | --- | --- | --- | --- |
| NPT Male | 1/4 " | --- | --- | HNM4-NM4 | HNM6-NM4 | HNM8-NM4 | HNM12-NM4 | HNM16-NM4 |
| NPT Male | 3/8 " | --- | --- | HNM6-NM4 | HNM6-NM6 | HNM8-NM6 | HNM12-NM6 | HNM16-NM6 |
| NPT Male | 1/2 " | --- | --- | HNM8-NM4 | HNM8-NM6 | HNM8-NM8 | HNM12-NM8 | HNM16-NM8 |
| NPT Male | 3/4 " | --- | --- | HNM12-NM4 | HNM12-NM6 | HNM12-NM8 | HNM12-NM12 | HNM12-NM16 |
| NPT Male | 1 " | --- | --- | HNM16-NM4 | HNM16-NM6 | HNM16-NM8 | HNM12-NM16 | HNM16-NM16 |
| Thread Type | Connection Size (in.) | 1/4 " | 3/8 " | 9/16 " | 3/4 " | 1 " |
|---|---|---|---|---|---|---|
| NPT Male | 1/4 " | HMM4-NM4 | HMM6-NM4 | HMM9-NM4 | HMM12-NM4 | HMM16-NM4 |
| NPT Male | 3/8 " | HMM4-NM6 | HMM6-NM6 | HMM9-NM6 | HMM12-NM6 | HMM16-NM6 |
| NPT Male | 1/2 " | HMM4-NM8 | HMM6-NM8 | HMM9-NM8 | HMM12-NM8 | HMM16-NM8 |
| NPT Male | 3/4 " | --- | --- | HMM9-NM12 | HMM12-NM12 | HMM16-NM12 |
| NPT Male | 1 " | --- | --- | HMM9-NM16 | HMM12-NM16 | HMM16-NM16 |
| Medium Pressure Male | 1/4 " | HMM4-MM4 | HMM6-MM4 | HMM9-MM4 | HMM12-MM4 | HMM16-MM4 |
| Medium Pressure Male | 3/8 " | HMM6-MM4 | HMM6-MM6 | HMM9-MM6 | HMM12-MM6 | HMM16-MM6 |
| Medium Pressure Male | 9/16 " | HMM9-MM4 | HMM9-MM6 | HMM9-MM9 | HMM12-MM9 | HMM16-MM9 |
| Medium Pressure Male | 3/4 " | HMM12-MM4 | HMM12-MM6 | HMM12-MM9 | HMM12-MM12 | HMM16-MM12 |
| Medium Pressure Male | 1 " | HMM16-MM4 | HMM16-MM6 | HMM16-MM9 | HMM16-MM12 | HMM16-MM16 |
| Thread Type | Connection Size (in.) | 1/4 " | 3/8 " | 9/16 " |
|---|---|---|---|---|
| NPT Male | 1/4 " | HHM4-NM4 | HHM6-NM4 | HHM9-NM4 |
| NPT Male | 3/8 " | HHM4-NM6 | HHM6-NM6 | HHM9-NM6 |
| NPT Male | 1/2 " | HHM4-NM8 | HHM6-NM8 | HHM9-NM8 |
| NPT Male | 3/4 " | HHM4-NM12 | HHM6-NM12 | HHM9-NM12 |
| NPT Male | 1 " | --- | --- | HHM9-NM16 |
| Medium Pressure Male | 1/4 " | HHM4-MM4 | HHM6-MM4 | HHM9-MM4 |
| Medium Pressure Male | 3/8 " | HHM4-MM6 | HHM6-MM6 | HHM9-MM6 |
| Medium Pressure Male | 9/16 " | HHM4-MM9 | HHM6-MM9 | HHM9-MM9 |
| Medium Pressure Male | 3/4 " | HHM4-MM12 | HHM6-MM12 | HHM9-MM12 |
| Medium Pressure Male | 1 " | HHM4-MM16 | HHM6-MM16 | HHM9-MM16 |
| High Pressure Male | 1/4 " | HHM4-HM4 | HHM6-HM4 | HHM9-HM4 |
| High Pressure Male | 3/8 " | HHM6-HM4 | HHM6-HM6 | HHM9-HM6 |
| High Pressure Male | 9/16 " | HHM9-HM4 | HHM9-HM6 | HHM9-HM9 |
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