One piece double hexagonal NPSM female 60 cone

DN(inch)             THREAD

1/4                    1/4-18 NPSM

3/8                    3/8-18 NPSM

1/2                    1/2-14 NPSM

3/4                    3/4-14 NPSM

1                       1-11 1/2 NPSM