SCB Designations

After 1946/1947; the USN began to assign SCB numbers sequentially, starting with USS Norfolk (CLK/DL) as SCB-1; the USS Tang (SS) as SCB-2, etc.

By 1964, they had switched to SCB numbering in blocks; e.g.

SCB Number Block

Ship Type

001-009

Cruisers

200

Carriers

300

Destroyers/Frigates

400

Amphibious

500

Mine Warfare

600

Patrol

700

Auxiliaries

800

Service Craft

900

Special Purpose

Thus far here is a list of SCB Numbers I've found in Norman Friedman's US Design Histories and a few other sources.

Project

SCB Number

Norfolk CLK/DL

SCB-1

Tang SS

SCB-2

Improved Tang SS

SCB-2A

United States CVA

SCB-6A

30 kt DE

SCB-7

LST-1156

SCB-9

Submarine Arctic Picket

SCB-12

Migrane III Radar Picket Submarine

SCB-12A

Kentucky Anti-aircraft BB Conversion

SCB-19

LCU-1466

SCB-25

Essex Modernization

SCB-27A

Essex Modernization

SCB-27C

FY 52 Regulus Conversion of Fleet Boat

SCB-28

Submarine, Guided Weapons

SCB-33

Submarine, Aircraft (unknown)

SCB-34

SSK-1 (Barracuda)

SCB-35

Radio Controlled Target BB

SCB-38

Conversion of Fleet Sub to Submarine Oiler

SCB-39

ASW CVE Study

SCB-43

Agile/Acme Minesweepers

SCB-45A

DER

SCB-46

DER

SCB-46A

DER

SCB-46B

Guppy II Conversion

SCB-47

Guppy IA Conversion

SCB-47A

Fleet Snorkel Conversion

SCB-47B

Guppy IIA Conversion

SCB-47C

Boston CAG Conversion

SCB-48

FY 50 DDE Conversions

SCB-53

CVL Conversion

SCB-54

Albacore AGSS

SCB-56

Fleet Boat to SSK Conversion

SCB-58

DE ASW Refit

SCB-63A

Nautilus SSN

SCB-64

Seawolf (Old) SSN

SCB-64A

X-1 Midget Submarine

SCB-65

Submarine Minelayer

SCB-66

Closed Cycle Submarine

SCB-67

T-1 Target Submarine

SCB-68

Iowa Replacement of 40mm with 3”/70

SCB-74E

Thomaston

SCB-75

Forrestal CV

SCB-80

Neosho AO

SCB-82

Sailfish Radar Picket Submarine

SCB-84

Forrest Sherman

SCB-85

Forrest Sherman

SCB-85A

FY 53 Plan to Finish unfinished Gearings

SCB-88

Rigel

SCB-97

Midway Modernization

SCB-101

Nimitz CVN

SCB-102

Midway Modernization

SCB-110

Midway Modernization

SCB-110A

Suribachi

SCB-114A

Darter SS

SCB-116

FY 55 Regulus SSG

SCB-118

Skate SSN

SCB-121

Original Barbel Design

SCB-124

Essex Modernization

SCB-125

Essex Modernization

SCB-125A

Kitty Hawk CV

SCB-127

Constellation CV

SCB-127A

America CV

SCB-127B

John F Kennedy CV

SCB-127C

Coontz with all Guns

SCB-129

Claud Jones

SCB-131

Triton SSRN

SCB-132

Cove

SCB-136

Missile Firing Submarine

SCB-137

Halibut SSGN

SCB-137A

YP-654

SCB-139

Oklahoma City Talos Conversion

SCB-140

Coontz

SCB-142

Coontz with Terrier Aft

SCB-143

YTB-752

SCB-147

YTB-760

SCB-147A

LCU-1610

SCB-149

LCU-1627

SCB-149B

Final Barbel Design

SCB-150

Skipjack SSN

SCB-154

Charles F Adams

SCB-155

Iwo Jima

SCB-157

13,800 ton DLGN

SCB-158

Enterprise CVAN

SCB-160

Growler

SCB-161

DLGN

SCB-165

Submarine

SCB-166

FY 58 SSGN

SCB-166A

DLGN

SCB-168

Long Beach CLGN/CGN

SCB-169

Seaplane Support Submarine

SCB-170

Leahy (FY 58 DLG 16)

SCB-172

Improved Leahy

SCB-172A

Albany Conversion with Regulus

SCB-173

(Regulus was later dropped from conversion)

Albany Conversion with Polaris

SCB-173A

(Third Ship, Never proceeded with)

Tullibee SSN

SCB-178

Victory Ship Conversions to Surveying Ships

SCB-179

Ethan Allen SSBN

SCB-180

George Washington SSBN

SCB-180A

Phase III Albacore AGSS

SCB-182

Conrad

SCB-185

Raleigh

SCB-187

La Salle

SCB-187A

Austin

SCB-187B

Austin

SCB-187C

Permit SSN

SCB-188

Sturgeon SSN

SCB-188A

Bainbridge

SCB-189

Hunley AS

SCB-194

Sacramento

SCB-196

Bronstein FF

SCB-199

Garcia FF

SCB-199A

Brooke FF

SCB-199B

Knox FF

SCB-199C

Knox FF

SCB-200

November 1958 CV Design

SCB-203

Dolphin AGSS

SCB-207

Mars

SCB-208

November 1959 CV Design

SCB-211

Belknap

SCB-212

Lafayette

SCB-216

Forrest Sherman ASW Modernization

SCB-221

Truxtun

SCB-222

Guppy III FRAM?

SCB-223

Spruance DD

SCB-224

Kingsport Satellite Ship Conversion

SCB-225

Silas Bent

SCB-226

Ticonderoga DDG/CG

SCB-226

Typhon DLGN (FY 65)

SCB-227

Suribachi Modernization

SCB-232

Victory Ship Conversion to FBM Support Ships

SCB-234

Metor

SCB-236

Simon Lake

SCB-238

Forrest Sherman AAW Conversion

SCB-240

California DLGN/CGN

SCB-241

Farragut AAW Modernization

SCB-243

Coontz AAW Modernization

SCB-243

Samuel Gompers

SCB-244

Narwhal SSN

SCB-245

Virginia DLGN/CGN

SCB-246

Barry ASW Modernization

SCB-251

Flagstaff

SCB-252

Oliver Hazard Perry FFG

SCB-261

Guitarro

SCB-300

Lipscomb SSN

SCB-302

Los Angeles SSN

SCB-303

Ohio SSBN

SCB-304

Blue Ridge

SCB-400

Austin

SCB-402

Charleston

SCB-403

Anchorage

SCB-404

Newport

SCB-405

LCU-1627 (Later)

SCB-406

Tarawa

SCB-410

Asheville

SCB-600

Pegasus PHM

SCB-602

Puget Sound

SCB-700

Yellowstone

SCB-700

L.Y. Spear

SCB-702

Kilauea

SCB-703

Wichita

SCB-707

Melville

SCB-710

De Steiguer

SCB-710

Mission Class Tanker Jumbo Conversion

SCB-713

Edenton

SCB-719

Pigeon

SCB-721

Chauvenet

SCB-723

Wilkes

SCB-726

Hayes

SCB-726

Wyman

SCB-728

Gyre

SCB-734

Emory S Land

SCB-737

Cimarron

SCB-739

Powhatan

SCB-744

YP-654

SCB-800