| Size: | 5/8" |
|---|---|
| Material: | Brass |
| Connection Type: | Flare |
| Application: | Plumbing |

I don't think you con put this directly onto a pipe end. the flared parts are on the tube between the two nuts on the part photographed. They have to be screwed onto male flares to seal.
NO -- These are just two flare nuts back to back on a very short piece of tubing -- sort of like a 1/4" female coupling. Will not fit NPT threads at all.