I don't go through that many nozzles in all honesty but when one breaks they are a pain to get. Especially if you need one sharpish which you normally do

These are the most common size that I use and a lot of other people I know use...... so if you need one quick. Purchase before 3 o clock and I'll whip it out next day for you - I print 24/7 and have had the most success with these

This listing is for the 0.4mm Hot End and Nozzle, The Thermistor, Sleeve and all the bits - All you need to do put the thermistor on the nozzle with the metal clip (2 included) then swap the fan off the old hot end and your away. Its a piece of urine