Sta-Kon C252GM NON INS 90 DEG FLAG FEM DISC 12-10

The C252GM takes 12 to 10 AWG conductors. Smaller wire, like 16-14 or 22-18, will not crimp reliably in this barrel, so match the terminal to the actual conductor size rather than the tool setting you happen to have loaded.

No. It is a bare, non-insulated terminal with no sleeve or nylon body. If the connection needs covering, you add heat shrink or a separate insulating cap, or you rely on the enclosure. For a tight terminal block where an insulated barrel would not fit, that bare barrel is the point.

A flag terminal brings the wire in at a right angle to the tab, so the conductor runs parallel to the face of the device instead of standing off it. That is what you want behind a contactor, relay, or switch where there is no depth for the wire to exit straight back. A straight female disconnect is the simpler choice any time you have room behind the tab.

The terminal body is copper, so it is intended for copper conductors. Aluminum wire needs a terminal rated for aluminum or a dual-rated AL/CU connector; putting aluminum into a copper-only barrel risks a bad joint over time.

Female. It is the receptacle half that slides onto a male spade tab on the device. If the equipment side presents a socket rather than a tab, you need the male counterpart instead.

It is a non-insulated barrel, so it crimps with a non-insulated terminal die, not the color-coded insulated nest. Set the tool for 12-10 AWG. Using an insulated die on a bare barrel deforms it and gives you a loose, high-resistance joint.

Yes, country of origin is the United States. That matters on public works and federal jobs carrying domestic sourcing requirements, so it is worth noting on the submittal.