AN/UMK-3 means Tactical Environmental Support System / Shipboard Meteorological and Oceanographic Observing System in
Military
Similar to AN/UMK-3
.NL. - Not Less Than
00Z - MOS for Command Sergeant Major
0K - Zero Killed
1 WVI - First West Virginia Infantry Regiment
100BASE-T - 100 Megabits per second, Baseband, Twisted pair
100ID - 100th Infantry Division
101AD - 101st Airborne Division
View all in Military