No.
![]() | This template is used on approximately 3,800 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them. |
This places the
non-breaking
narrow space character  
after "No." or "Nos.", as a regular non-breaking space can be inelegantly wide when Wikipedia text is set to be
justified per user settings.