The SSBN submarines provide the sea-based leg of the U.S. nuclear triad. Each SSBN submarine is armed with up to 24 Trident II submarine-launched ballistic missiles (SLBM). Each SSGN is capable of carrying 154 Tomahawk cruise missiles, plus a complement of Harpoon missiles to be fired through their torpedo tubes.
| Ballistic Missile Submarines – SSBN | |
Class |
Unit(s) (year of commissioning) |
| George Washington (5 units) | INFO – George Washington class Ballistic Missile Submarine / SSBN |
| SSBN 598 USS George Washington (1959) SSBN 599 USS Patrick Henry (1960) – reclassified to SSN 599 in 1981 SSBN 600 USS Theodore Roosevelt (1961) SSBN 601 USS Robert E. Lee (1960) SSBN 602 USS Abraham Lincoln (1961) |
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| Ethan Allen (5 units) | INFO – Ethan Allen class Ballistic Missile Submarine / SSBN |
| SSBN 608 USS Ethan Allen (1961) – reclassified to SSN 608 in 1980 SSBN 609 USS Sam Houston (1962) – reclassified to SSN 609 in 1980 SSBN 610 USS Thomas A. Edison (1962) – reclassified to SSN 610 in 1980 SSBN 611 USS John Marshall (1962) – reclassified to SSN 611 in 1981 SSBN 618 USS Thomas Jefferson (1963) – reclassified to SSN 618 in 1981 |
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| Lafayette (9 units) | INFO – Lafayette class Ballistic Missile Submarine / SSBN |
| SSBN 616 USS Lafayette (1963) SSBN 617 USS Alexander Hamilton (1963) SSBN 619 USS Andrew Jackson (1963) SSBN 620 USS John Adams (1964) SSBN 622 USS James Monroe (1963) SSBN 623 USS Nathan Hale (1963) SSBN 624 USS Woodrow Wilson (1963) SSBN 625 USS Henry Clay (1964) SSBN 626 USS Daniel Webster (1964) |
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| James Madison (10 units) | INFO – Janes Madison class Ballistic Missile Submarine / SSBN |
| SSBN 627 USS James Madison (1964) SSBN 628 USS Tecumseh (1964) SSBN 629 USS Daniel Boone (1964) SSBN 630 USS John C. Calhoun (1964) SSBN 631 USS Ulysses S. Grant (1964) SSBN 632 USS Von Steuben (1964) SSBN 633 USS Casimir Pulaski (1964) SSBN 634 USS Stonewall Jackson (1964) SSBN 635 USS Sam Rayburn (1964) SSBN 636 USS Nathanael Greene (1964) |
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| Benjamin Franklin (12 units) | INFO – Benjamin Franklin class Ballistic Missile Submarine / SSBN |
| SSBN 640 USS Benjamin Franklin (1965) SSBN 641 USS Simon Bolivar (1965) SSBN 642 USS Kamehameha (1965) – reclassified to SSN 642 in 1992 SSBN 643 USS George Bancroft (1966) SSBN 644 USS Lewis & Clark (1965) SSBN 645 USS James K. Polk (1966) – reclassified to SSN 645 in 1994 SSBN 654 USS George C. Marshall (1966) SSBN 655 USS Henry L. Stimson (1966) SSBN 656 USS George Washington Carver (1966) SSBN 657 USS Francis Scott Key (1966) SSBN 658 USS Mariano G. Vallejo (1966) SSBN 659 USS Will Rogers (1967) |
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| Ohio (18 units) | INFO – Ohio class Ballistic Missile Submarine / SSBN |
| SSBN 726 USS Ohio (1981) – converted to SSGN 726 SSBN 727 USS Michigan (1982) – converted to SSGN 727 SSBN 728 USS Florida (1983) – converted to SSGN 728 SSBN 729 USS Georgia (1984) – converted to SSGN 729 SSBN 730 USS Henry M. Jackson (1984) SSBN 731 USS Alabama (1985) SSBN 732 USS Alaska (1986) SSBN 733 USS Nevada (1986) SSBN 734 USS Tennessee (1988) SSBN 735 USS Pennsylvania (1989) SSBN 736 USS West Virginia (1990) SSBN 737 USS Kentucky (1991) SSBN 738 USS Maryland (1992) SSBN 739 USS Nebraska (1993) SSBN 740 USS Rhode Island (1994) SSBN 741 USS Maine (1995) SSBN 742 USS Wyoming (1996) SSBN 743 USS Louisiana (1997) |
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| Columbia (12 units planned) | INFO – Columbia class Ballistic Missile Submarine / SSBN |
| Ohio replacement SSBN | |