Here is the Acu Rank nsn's
PRIVATE E-2 8455-01-531-2072
PRIVATE 1ST CLASS E-3 8455-01-531-2071
SPECIALIST FOUR E-4 8455-01-531-2074
CORPORAL 8455-01-531-2070
SERGEANT E-5 8455-01-531-2068
STAFF SERGEANT E-6 8455-01-531-2067
PLATOON SERGEANT (SFC) E-7 8455-01-531-2066
MASTER SERGEANT E-8 8455-01-531-2065
1ST SERGEANT 8455-01-531-2064
COMMAND SGT MAJOR 8455-01-531-2063
SERGEANT MAJOR 8455-01-531-1971
Warrant Officer W-5 8455-01-531-2656
Warrant Officer W-4 8455-01-531-2646
Warrant Officer W-3 8455-01-531-2645
Warrant Officer W-2 8455-01-531-2643
Warrant Officer W-1 8455-01-531-2642
Second Liutenant 01 8455-01-531-2096
First Lieutenant 02 8455-01-531-2075
Captain 0-3 8455-01-531-2077
Major 0-4 8455-01-531-2099
Lieutenant Colonel 0-5 8455-01-531-2081
Colonel 0-6 8455-01-531-2082
BRIGADIER GENERAL 8455-01-531-2087
MAJOR GENERAL 8455-01-531-2089
LIEUTENANT GENERAL 8455-01-531-2091
GENERAL 8455-01-531-2092
And here is the Multicam Rank nsn's
Private Class E-2 8455-01-589-7627
Private First Class E-3 8455-01-589-7634
Specialist Four E-4 8455-01-589-7292
Corporal E-4 8455-01-589-7026
Sergeant E-5 8455-01-589-7310
Staff Sergeant E-6 8455-01-589-7302
Sergeant First Class E-7 8455-01-589-7646
Master Sergeant E-8 8455-01-589-7746
First Sergeant E-8 8455-01-589-7035
Sergeant Major E-9 8455-01-589-7231
Command Sergeant Major E-9 8455-01-589-7756
CW1 8455-01-589-7185
CW2 8455-01-589-7219
CW3 8455-01-589-7221
CW4 8455-01-589-7164
CW5 8455-01-589-7174
Second Lieutenant O-1 8455-01-589-8174
First Lieutenant O-2 8455-01-589-8158
Captain O-3 8455-01-589-8076
Major O-4 8455-01-589-8134
Lieutenant Colonel O-5 8455-01-589-8087
Colonel O-6 8455-01-589-8032
Brigraier Gerneral O-7 8455-01-589-7768
Major General O-8 8455-01-589-7776
Lieutenant General O-9 8455-01-589-7788
General O-10 8455-01-589-7799
Hope this helps out P.