0.250" tab, 13.5-17 AWG crimp receptacle
The 1-160304-8: The tin-plated phosphor bronze contact is rated for crimp termination in free-hanging applications; insulation diameter range is 0.118" to 0.169" (3.00mm to 4.29mm).
Brass vs phosphor bronze contact material
Within the same 0.250" tab-width Faston series, the 1-160304-8 uses phosphor bronze contacts while the 1-160304-0 uses brass — both share the same wire gauge range, tab thickness, and overall length, so the choice turns on the contact material's spring properties for the application.
