Minor Threat - Cashing In Bass

Intro/Verse
G-------------------|
D-------------------|
A---------------777-|
E-0-4-0-555540------|

Pre-Chorus
G---------------------------------|
D---------------------------------|
A-777-----777-------777-----------|
E-----7777-----7777-----777777777-|

Chorus
G---------------------|
D-777-------540-------|
A----7-777-----5555---|
E---------------------|

Outro
G-----------------------------------------------|
D-----------------------------------------------|
A-7777-------33333------77777-------333333-5-77-|
E------55555------33333-------55555---------5---| (Palm mute all but the last 4 notes 
here)

Then towards the end occasionally don't use palm mutes at all.
It's best to listen to the album the get that part down perfectly.