RFN1001-S Type-N Male Solder Connector, Straight, Knurled Nut (2 piece Connector), Solder Type.
This connector is like old PL259 style, where you solder the center pin and shield on body of connector and then screw the cap over the body.
Cable Group: E, F, I
Cable Types: RG8, RG213, RG214, LMR400, 9913F7
Center Pin: Gold (Solder Pin-Captivated)
MFR: RF Industries