U.S. Navy
U.S. Navy Enlisted Ranks E-1 to E-9
| Grade | Title | Abbreviation | Insignia |
|---|---|---|---|
| E-1 | Seaman Recruit | SR | No insignia |
| E-2 | Seaman Apprentice | SA | Two diagonal stripes |
| E-3 | Seaman | SN | Three diagonal stripes |
| E-4 | Petty Officer Third Class | PO3 | One chevron, eagle |
| E-5 | Petty Officer Second Class | PO2 | Two chevrons, eagle |
| E-6 | Petty Officer First Class | PO1 | Three chevrons, eagle |
| E-7 | Chief Petty Officer | CPO | Fouled anchor, eagle |
| E-8 | Senior Chief Petty Officer | SCPO | Fouled anchor, eagle, one star |
| E-9 | Master Chief Petty Officer | MCPO | Fouled anchor, eagle, two stars |
E-1SR
Seaman Recruit
No insignia
E-2SA
Seaman Apprentice
Two diagonal stripes
E-3SN
Seaman
Three diagonal stripes
E-4PO3
Petty Officer Third Class
One chevron, eagle
E-5PO2
Petty Officer Second Class
Two chevrons, eagle
E-6PO1
Petty Officer First Class
Three chevrons, eagle
E-7CPO
Chief Petty Officer
Fouled anchor, eagle
E-8SCPO
Senior Chief Petty Officer
Fouled anchor, eagle, one star
E-9MCPO
Master Chief Petty Officer
Fouled anchor, eagle, two stars