U.S. Navy
Hull Designations
Updated 4/26/09

US Naval Directives on Ship Classifications (1919-Present)

Standard Nomenclature for Naval Vessels, General Order No. 541, Office of the Secretary of the Navy, Washington, D.C., 17 July 1920

Classification of Naval Ships and Craft, SECNAVINST 5030.1, Office of the Secretary of the Navy, Washington, D.C., 26 September 1952
Classification of Naval Ships and Craft, SECNAVINST 5030.1A, Office of the Secretary of the Navy, Washington, D.C.
Classification of Naval Ships and Craft, SECNAVINST 5030.1B, Office of the Secretary of the Navy, Washington, D.C.
Classification of Naval Ships and Craft, SECNAVINST 5030.1C, Office of the Secretary of the Navy, Washington, D.C.
Classification of Naval Ships and Craft, SECNAVINST 5030.1D, Office of the Secretary of the Navy, Washington, D.C., 3 October 1967
Classification of Naval Ships and Craft, SECNAVINST 5030.1E, Office of the Secretary of the Navy, Washington, D.C., 14 August 1968
Classification of Naval Ships and Craft, SECNAVINST 5030.1F, Office of the Secretary of the Navy, Washington, D.C., 23 September 1970
Classification of Naval Ships and Craft, SECNAVINST 5030.1G, Office of the Secretary of the Navy, Washington, D.C.
Classification of Naval Ships and Craft, SECNAVINST 5030.1H, Office of the Secretary of the Navy, Washington, D.C.
Classification of Naval Ships and Craft, SECNAVINST 5030.1J, Office of the Secretary of the Navy, Washington, D.C.
Classification of Naval Ships and Craft, SECNAVINST 5030.1K, Office of the Secretary of the Navy, Washington, D.C., February 1986.
Classification of Naval Ships and Craft, SECNAVINST 5030.1L, Office of the Secretary of the Navy, Washington, D.C., 22 January 1993

Classification of Naval Ships and Craft, SECNAVINST 5030.8, Office of the Secretary of the Navy, Washington, D.C., 21 November 2006

Prefixes and suffixes commonly used

Aircraft Carrier Hull Series

Designation

Meaning

CV

Aircraft Carrier

CVA

Aircraft Carrier, Attack

CVAN

Aircraft Carrier, Attack, Nuclear Powered

CVB

Aircraft Carrier, Large

CVE

Aircraft Carrier, Escort

CVGH

Aircraft Carrier, Guided Missile Helicopter

CVH

Aircraft Carrier, Helicopter

CVHA

Aircraft Carrier, Helicopter, Assault

CVHE

Aircraft Carrier, Escort, Helicopter

CVL

Aircraft Carrier, Light

CVN

Aircraft Carrier, Nuclear Powered

CVS

(Pre 1957) Seaplane Carrier
(Post 1957) ASW Carrier

CVT

Aircraft Carrier, Training

CVV

Aircraft Carrier, VTOL

CVU

Aircraft Carrier, Utility

   

Battleship Hull Series

Designation

Meaning

BB

Battleship

BBC

Battleship, Command

BBG

Battleship, Guided Missile

BBH

Battleship, Helicopter

BM

Monitor

BMR

Monitor, Riverine

BMRL

Monitor, Riverine, Small

  

Patrol Hull Series

Designation

Meaning

FF

Frigate

FFG

Frigate, Guided Missile

FFH

Frigate, Helicopter

FFT

Frigate, Reserve/Training

PACV

Patrol Air Cushion Vehicle

PB

Patrol Boat

PBM

Patrol Boat, Multipurpose

PBR

Patrol Boat, Riverine

PC

Submarine Chaser, 173 ft.

PCC

Submarine Chaser, 173 ft, Command

PCE

Patrol Escort, 180 ft.

PCEC

Patrol Escort, 180 ft, Command

PCER

Patrol Escort, 180 ft, Rescue

PCF

Patrol Craft, Inshore
or
Patrol Craft, Fast

PCH

Patrol Craft, Hydrofoil

PCS

Patrol Craft, Submarine

PCS

Submarine Chaser, 136 ft.

PCSC

Submarine Chaser, 136 ft, Command

PE

Patrol Escort
or
Eagle class patrol craft (1918)

PF

Patrol Frigate

PFG

Patrol Frigate, Guided Missile

PFR

Patrol Frigate, Radar Picket

PG

Patrol Gunboat

PGH

Patrol Gunboat, Hydrofoil

PGM

Patrol Gunboat, Motor
Patrol Gunboat, Missile

PHM

Patrol Vessel, Hydrofoil, Missile

PR

Patrol Vessel, Riverine

PT

Patrol Vessel, Torpedo

PTC

Patrol Vessel, Subchaser/Command?

PTF

Patrol Vessel, Fast

PY

Patrol Vessel, Converted Yacht

PYC

Patrol Vessel, Converted Yacht,
Command or Coastal?

PYO

Patrol Craft

SC

Submarine Chaser, 110 ft.

SCC

Submarine Chaser, 110 ft, Command

YP

Patrol Craft, Training

LCS

Littoral Combat Ship

   

Amphibious Warfare Hull Series

AGC

Amphibious Force Flagship
or
Landing Craft, Control

AGF

Miscellaneous Command Ship

IFS

Inshore Fire Support Ship

JCC

Joint Command and Control Ship

LCA

Landing Craft, Assault

LCAC

Landing Craft; Air Cushion

LCC

Amphibious Command Ship

LCM

Landing Craft, Mechanized

LCP(L)

Landing Craft, Personnel, Large
or
Landing Craft, Personnel, Light

LCP(R)

Landing Craft, Personnel, Ramped

LCU

Landing Craft, Utility

LCVP

Landing Craft, Vehicle, Personnel

LFR

Inshore Fire Support Ship

LFS

Amphibious Fire Support Ship

LHA

Amphibious Assault Ship (General Purpose)

LHD

Amphibious Assault Ship (Multi-Purpose)

LKA

Amphibious Cargo Ship

LPA

Amphibious Transport

LPD

Amphibious Transport Dock

LPH

Amphibious Assault Ship, Helicopter

LPR

Amphibious Transport, Small

LS(FF)

Landing Ship (Flotilla Flagship)

LSD

Landing Ship, Dock

LSE

Landing Ship, Emergency Repair

LSF

Landing Ship, Fighter Direction

LSG

Landing Ship, Gantry

LSH

Landing Ship, Headquarters

LSM

Landing Ship, Medium

LSM(R)

Landing Ship, Medium (Rocket)

LSS

Landing Ship, Stern-Chute

LSSC

Light Seal Support Craft

LST

Tank Landing Ship

LWT

Amphibious Warping Tug

   

Transport Hull Series

AE

Ammunition Ship

AF

Stores Ship, Refrigerated

AFS

Stores Ship, Combat

AK

Cargo Ship

AKA

Cargo Ship, Attack

AKD

Cargo Ship, Deep Hold/Dock

AKE

Cargo Ship, Ammunition

AKF

Cargo Ship, Float-On/Float-Off

AKL

Cargo Ship, Light

AKN

Cargo Ship, Net

AKR

Cargo Ship, Vehicle

AKS

Cargo Ship, General Stores

AKV

Cargo Ship, Aircraft Ferry

AP

Transport

APA

Transport, Attack (or Transport, Animal)

APC

Transport, Cavalry

APD

Transport, High Speed

APH

Transport, Hospital (for evac of wounded)

APM

Transport, Mechanized Artillery

APN

Transport, Non Mechanized Artillery

APR

Transport, Rescue

APV

Transport, Aircraft Ferry

   

Dry Dock Hull Series

ABD

Advance Base Dock

ABSD

Advance Base Sectional Dock

AFD

Mobile Floating Dry Dock

AFDB

Auxiliary Floating Dry Dock, Large

AFDL

Auxiliary Floating Dry Dock, Small

AFDM

Auxiliary Floating Dry Dock, Medium

ARD

Auxiliary Repair Dry Dock

ARDC

Auxiliary Repair Dry Dock, Concrete

ARDM

Auxiliary Repair Dry Dock, Medium

YFD

Yard Floating Dock

YFND

Dock Companion Craft

YRDH

Floating Dry Dock Workshop, Hull

YRDM

Floating Dry Dock Workshop, Machine

   

Barge/Lighter Hull Series

YA

Lighter, Ash

YC

Lighter, Open
or
Coal Barge

YCD

Fueling Barge

YCF

Car Float, Railroad

YCK

Lighter, Open Cargo

YCV

Aircraft Transportation Lighter

YE

Lighter, Ammunition

YF

Covered Lighter
or
Freight Lighter

YFN

Covered Lighter (Non-Propelled)

YFNB

Covered Lighter (Non-Propelled), Large

YFNG

Covered Lighter (Special Purpose)

YFNX

Lighter (Special Purpose)

YFP

Floating Power Barge

YFR

Refrigerated Covered Lighter

YFRN

Refrigerated Covered Lighter (Non-Propelled)

YFT

Lighter, Torpedo Transportation

YG

Lighter, Garbage

YGN

Lighter, Garbage (Non-Propelled)

YLA

Lighter, Open Landing

YO

Fuel Oil Barge

YON

Fuel Oil Barge (non-self-propelled)

YOG

Gasoline Barge

YOGN

Gasoline Barge (non-self-propelled)

YOS

Oil Storage Barge

YPK

Pontoon Stowage Barge

YRB

Repair and Berthing Barge

YRBM

Repair, Berthing and Messing Barge

YRR

Radiological Repair Barge

YRL

Covered Lighter, Repair

YSR

Sludge Removal Barge

YR

Floating Workshop

YVC

Lighter, Catapult

YW

Water Barge

YWN

Water Barge (non-self-propelled)

Miscellaneous/Science Hull Series

AGDS

Deep Submergence Support Ship

AGEH

Hydrofoil Research Ship

AGER

Environmental Research Ship

AGM

Missile Range Instrumentation Ship

AGMR

Major Communications Relay Ship

AGOR

Oceanographic Research Ship

AGOS

Ocean Surveillance Ship

AGR

Radar Picket Ship

AGS

Surveying Ship

AGTR

Technical Research Ship

AGDE

Escort Research Ship

AGFF

Frigate Research Ship

NR

Submersible Research Vehicle, Nuclear

Cruiser Hull Series

Designation

Meaning

CA

(Pre 1931) Armored Cruiser
(Post 1931) Heavy Cruiser

CAG

Heavy Cruiser, Guided Missile

CB

Large Cruiser

CBC

Large Cruiser, Command

CC

(Pre 1961) Battlecruiser
(Post 1961) Command Cruiser

CF

Cruiser, Flying Deck

CG

Cruiser, Guided Missile

CGH

Cruiser, Guided Missile, Helicopter

CGN

Cruiser, Guided Missile, Nuclear

CH

Cruiser, Helicopter

CL

Light Cruiser

CLAA

Light Cruiser, Anti-Aircraft

CLC

Light Cruiser, Command Ship
or
Tactical Command Ship

CLD

Light Cruiser, Dual-Purpose

CLG

Light Cruiser, Guided Missile

CLGN

Light Cruiser, Guided Missile, Nuclear

CLH

Light Cruiser, Helicopter

CLK

Light Cruiser, ASW

CLV

Cruiser, Aviation

CS

Cruiser, Scout

CSG

Strike Missile Cruiser

CSGN

Strike Missile Cruiser, Nuclear

   

Destroyer Hull Series

Designation

Meaning

DE

Destroyer Escort

DEC

Destroyer Escort, Command

DEG

Destroyer Escort, Guided Missile

DER

Destroyer Escort, Radar Picket

TB

Torpedo Boat

DD

Destroyer

DDC

Destroyer, Command

DDE

Destroyer, Fleet Escort

DDG

Destroyer, Guided Missile

DDH

Destroyer, Helicopter

DDK

Destroyer, ASW

DDR

Destroyer, Radar Picket

DL

Destroyer Leader
or
Frigate

DLG

Destroyer Leader, Guided Missile
or
Frigate, Guided Missile

DLGN

Destroyer Leader, Guided Missile, Nuclear
or
Frigate, Guided Missile, Nuclear

   

Submarine Hull Series

SS

Submarine

SSA

Submarine, Auxiliary/Experimental

SSAG

Submarine, Auxiliary/Experimental, Guided Missile

SSB

Submarine, Ballistic Missile

SSBN

Submarine, Ballistic Missile, Nuclear

SSC

Submarine, Cruiser

SSG

Submarine, Guided Missile

SSGN

Submarine, Guided Missile, Nuclear

SSK

Submarine, ASW (Hunter-Killer)

SSM

Submarine, Midget

SSN

Submarine, Nuclear

SSO

Submarine, Oiler

SSP

Submarine, Transport

SSR

Submarine, Radar Picket

SSRN

Submarine, Radar Picket, Nuclear

SST

Submarine, Target/Training

APS

Submarine, Minelaying
or
Submarine, Cargo

ASSA
or
AKSS

Submarine, Cargo

ASSP

Submarine, Transport

APSS

Submarine, Cargo, Auxiliary

AG(SS)

Auxiliary/Research Submarine
or
High Speed Target

AO(SS)

Submarine, Oiler

SF

Submarine, Fleet

SC

Submarine, Cruiser

SM

Submarine, Minelayer

X

Midget Submarine (and we do mean Midget)

LP(SS)

Submarine, Amphibious Transport

   

Mine Warfare Hull Series

DM

Minelayer, Light (Converted DD) (till 1955)

Destroyer, Minelayer (Converted DD) (post 55)

DMS

Minelayer, High Speed

MCM

Mine Countermeasures Ship

MCS

Mine Countermeasures Ship
or
Mine Countermeasures Support Ship

MHA

Minehunter, Auxiliary

MHC

Minehunter, Coastal (Non-magnetic)

MM

Minelayer, Fleet

MMA

Minelayer, Auxiliary

MMC

Minelayer, Coastal

MMD

Minelayer, Fast (DM's redesignated to this)

MMF

Minelayer, Fleet

MSA

Minesweeper, Auxiliary

MSB

Minesweeping Boat

MSC

Minesweeper, Coastal
or
Mine Countermeasures Ship

MSCO

Minesweeper, Coastal, Old

MSD

Minesweeper, Drone

MSF

Minesweeper, Fleet (Steel Hulled)

MSH

Minehunter, Coastal

MSI

Minesweeper, Inshore

MSL

Minesweeping Launch

MSM

Minesweeper, Riverine (converted LCM-6)

MSO

Minesweeper, Ocean

MSR

Minesweeper, Patrol

MSS

Minesweeper, Special Device

AM

Minesweeper

CM

Minelayer

   

Support Service Hull Series

AB

Crane Ship

AC

Collier

AD

Tender, Destroyer

ADG

Degaussing Vessel

AE

Ammunition Ship

AF

Stores Ship, Refrigerated

AFS

Stores Ship, Combat

AGP

Tender, Motor Torpedo Boat

AH

Hospital Ship

AHP

Hospital Ship, Evacuation

AK

Cargo Ship

AKS

General Stores Ship

AO

Oiler

AOE

Fast Combat Support Ship

AOG

Gasoline Tanker

AOR

Oiler, Replenishment

AOT

Oiler, Transport

AS

Tender, Submarine

AV

Tender, Seaplane
or
Tender, Heavier-than-air craft

AVD

Tender, Seaplane, Destroyer

AVP

Tender, Seaplane, Small

YT

Tug, District

YTL

Tug, Small Harbor

YTM

Tug, Medium Harbor

YTB

Tug, Large Harbor

AT

Tug, Fleet

ATA

Tug, Ocean Auxiliary

ATF

Tug, Fleet Ocean

AZ

Tender, Lighter-than-air craft

ATS

Tug, Salvage

ARST

Tender, Salvage Craft

YRST

Tender, Salvage Craft

   

U.S. Coast Guard Hull Series

WAG

Miscellaneous Auxiliary

WAGB

Icebreaker

WAGC

Amphibious Force Flagship

WAGR

Miscellaneous Auxiliary

WAK

Cargo Ship

WAO

Layer

WARC

Cable Layer

WATO

Ocean Tug, Old

WAVR

104' Air-Sea Rescue Vessel

WHEC

High Endurance Cutter

WIX

Training Cutter

WLB

Seagoing Buoy Tender

WLI

Inland Buoy Tender, Large

WLIC

Construction Tender

WLM

Construction Buoy Tender

WLR

River Buoy Tender

WLV

Light Ship

WMEC

Medium Endurance Cutter

WP

Work Punt

WPB

River Gunboat

WPR

Patrol Craft

WPY

Yacht

WPYC

Yacht, Coastal

WR

Reserve

WYNG

Gate Vessel

WYP

District Patrol Vessel

WYTL

Harbor Tug, Small

Rescue Hull Series

DSRV

Deep Submergence Rescue Vehicle

DSV

Deep Submergence Vehicle

ASR

Submarine Rescue Ship

ATS

Salvage and Rescue Ship