Users
- United States
- United States Navy
- First used on USS Northampton (CLC-1)
- Forrestal-class aircraft carrier
- Belknap-class cruiser and USS Truxtun (CGN-35)
- Charles F. Adams-class destroyer
- Farragut class destroyer
- Forrest Sherman-class destroyer
- Mitscher-class destroyer
- Knox-class frigate
- Australia
- Royal Australian Navy
- Perth-class destroyer (modified Charles F. Adams class)
- Egypt
- Egyptian Navy
- Damiyat class frigate (ex-USN Knox class frigates)
- Germany
- German Navy
- Lütjens-class destroyer (modified Charles F. Adams class)
- Greece
- Hellenic Navy
- Ipiros class frigate (ex-USN Knox class frigates)
- Japan
- Japan Maritime Self-Defense Force
- Tachikaze-class destroyer
- Hatakaze-class destroyer
- Haruna-class destroyer
- Takatsuki-class destroyer
- Shirane-class destroyer
- Mexico
- Mexican Navy
- Ignacio Allende class frigate (ex-USN Knox class frigates)
- Spain
- Spanish Navy
- Baleares-class frigate (modified Knox class)
- Taiwan
- Republic of China Navy
- Chih Yang class frigate (modified ex-USN Knox class)
- Thailand
- Royal Thai Navy
- Phutthayotfa Chulalok-class frigate (ex-USN Knox class frigates)
- Turkey
- Turkish Navy
- Muavenet class frigate (ex-USN Knox class frigates)
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