Sta-Kon A483 NON-INS RECT RING TERM, 22-18, No5,

The A483 is built for 22-18 AWG stranded copper conductors. That is the small control and signal wire range, so if you are terminating 16 AWG or larger you need a different barrel size. Going outside the 22-18 range gives you a crimp that either will not grip or will not accept the wire at all.

The ring on the Sta-Kon A483 is a No. 5 size, so it lands on a #5 screw or stud. It is a rectangular tongue rather than a round one, which matters when you are stacking several terminals under one screw on a tight terminal block or stud.

No insulation. The A483 is a bare copper terminal, so the barrel and tongue are exposed metal. On a panel with closely spaced studs or where the wire run can shift, you need to add heat shrink or sleeving yourself, or choose an insulated ring instead. The upside of a non-insulated barrel is that you can inspect the crimp and the conductor after you make it.

600 V. That covers standard commercial and industrial control panel work, motor control circuits, and line voltage branch wiring up to 600 volts. It is also UL recognized under file E9809, which is the number an inspector or a spec reviewer will want to see on a terminal in a listed assembly.

No. The A483 is a copper terminal intended for copper conductors. Aluminum conductors require a terminal rated and listed for aluminum (or AL/CU dual rated) with the appropriate inhibitor compound. Crimping copper-only hardware on aluminum creates a dissimilar metal joint that loosens and heats over time.

Yes, a non-insulated crimper is the right tool. Non-insulated barrels like the A483 crimp with the uninsulated nest or die of a terminal tool, not the color-coded insulated nests. Using the insulated die set on a bare 22-18 barrel deforms it instead of forming a proper indent, and the pull-out strength suffers.

Country of origin on the A483 is the United States, which is what institutional and government buyers working under domestic sourcing requirements usually need confirmed before they will put a terminal on a submittal.

For 22-18 AWG on a No. 5 stud, the part to specify is Sta-Kon A483. Order by that MPN directly; there are no finish or length options to pick on it. If your stud size or wire gauge differs, the A483 is not the correct number, and you should match a terminal to both the gauge and the stud size.