Enter materials and parts under Supplies. Or you can enter them under Other Miscellaneous Expenses on Schedule C lPart V Other Expenses line 48.
You can enter 1099NEC or cash Self Employment Income into Online Deluxe but if you have any expenses you will have to upgrade to the Premium version or use any of the Desktop programs.
Where to enter expenses in the Online Premium version
https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/enter-self-empl...
