US Markings


These markings are specific to the US but may also be used by other nations.

Body and marking colours

Colour of Body
Olive Green Body Normally used for operational purposes (Camoflage), Can be found on HE, Anti tank, smoke, and other munitions  
Grey body In early grenades (WWI and shortly after) indicated a filled grenade, thereafter denotes a chemical filled munition  
Light Red Body Incendiary grenade  
Black Body Offensive grenade, early training grenades, may indicate Armour defeating munition  
Yellow Body Prior to 1942 indicated an HE filled munition. old marking
Blue Body Indicates a Practice munition  
White or unpainted body Initially used for illumination grenades or ammunition  
Bronze body Indicates completely inert munitions  
Light Green body Indicates a smoke filled munition  
Silver/Aluminum Identifies countermeasure ammunition  


Colour of Markings
Yellow Indicates HE ammunition or the presence of HE.  
White Found on Practice munitions  
Brown Indicates a Low explosive item or components or presence of low explosive  
Violet Indicates an incapacitating agent filling (Gas eg CN or CS) old marking
Dark Green Indicates a toxic agent filling  
Dark Red Indicates a riot control filling  

The colours Black or White, when used for lettering or marking have no colour coding significance.

Lot numbers defined


Lot number ABC-8-124

ABC 8 124
Manufacturers ID Symbol Interfix number Serial number


Lot number AMC 75 D 018 124 B

AMC 75 D 018 124 B
Manufacturers ID Symbol Year of Manufacture Single digit for Month of manufacture Lot interfix number Lot sequence number Ammunition Lot sequence

Manufacturers Markings

A Apex Metal Stamping Co.  
AA Alcan Aluminum Corp.  
AAD Atlanta Army Depot  
ABJ Allied Chemical Corp.  
ABP Alabama Ord. Works Sylacauga, AL
ADC Accurate Die Casting Co. Cleveland, OH
AF American Fireworks Co. New Jersey
AKT Action Manufacturing  
ALA Alabama Army Ammunition Plant Sylacauga, AL
AMR Amram Mfg. Corp. Vineland, NJ
AOP Arkansas Ordnance Plant Jacksonville, AR
AR American Radiator Co. Buffalo, NY
B or B in a diamond Bassick Company Bridgeport, CT
BA Benicia Arsenal Benicia, California.
BB Burnham Boiler Corp. Zaneville, OH
BCA Benicia Arsenal Benicia, California.
BEA Benecia Army Depot  
BFW Brocks Fireworks Ltd. England
BGI Borg Ordnance Inc.  
BII Bradar Industries Inc. New Hyde Park, NY
BMC Budd Mfg. Co.  
BOI Bay Ordnance Inc.  
BOP Bluebonnet Ordnance Plant McGregor, TX
BTA Aerojet Ordnance Mfg. Corp.  
BWD Brunswick Corp, Defense Products Lincoln, NE
BWG Brunswick Corp, Tech Products Sugar Grove, VA
C Crane Burns City, IN
CAD US Army Ammo Depot  
CBOD Curtis Bay Ordnance Depot  
CME Camden Mfg Co. Camden, AR
COD Charleston Ordnance Depot  
COL Colt Firearms, Pyrodynamics Atglen, PA
COP Cornhusker Army Ammunition Plant  
CRA Crane Army Ammunition Activity Crane, IN
D Dupont  
DAG Dynamit Nobel  
DAQ Canadian Arsenal Ltd (Dominion Arms, Quebec)  
DCO Dow Chemical Co.  
DEI Defense Industries  
DOD Delaware Ordnance Depot  
DUQ Dupont Corp, Newport Army Ammunition Plant Newport, IN
E Earle Ammunition Plant Colt's Neck, NJ
EA Edgewood Arsenal Edgewood, MD
ECN Explosives Corp of America  
EDI Explosive Devices Inc.  
EK Eastman Kodak  
EKK Eastman Kodak  
ENB Ensign and Bickford Aerospace Inc.  
EMZ Eurometaal Netherlands
EOP Elwood Ordnance Plant Joliet, IL
ETI Explosive Technology Inc.  
F in a diamond Flagg Fittings  (Stanley G. Flagg & Co.) Philadelphia, PA
FA Frankford Arsenal Philadelphia, PA
FCC Federal Cartrridge Corp Anoka, MN
FCK Federal Cartridge Corp  
FDL Federal Laboratories Inc. Saltzberg, PA
FLI Flight Systems Inc.  
FSA US Armaments Corp.  
G Grabler Co.  
GAW Gateway Army Ammunition Plant St. Louis, MO
GDM Martin Marietta Ordnance Systems Inc.  
GOI Gerhart-Owens Industries Fort Worth, TX
GOP Gulf Ordnance Plant Praire, MS
GR Green River Ordnance Plant Lee County, IL
GSF Golden State Fireworks Co. Saugus, CA
H Hornestake Mine Corporation Lead, South Dakota
HA Hawthorne Naval Ammunition Depot Hawthorne, NV
HA Harvey Aluminum Inc.  
HAW Hawthorne Naval Ammunition Depot Hawthorne, NV
HI Hawaiian Ordnance Plant Ft. Shafter, HI
HMC Hornestake Mine Corporation Lead, South Dakota
HOL Holston Army Ammunition Plant Kingsport, TN
HOW Holston Army Ammunition Plant Kingsport, TN
HPC Hercules Powder Co.  
HRV Harville-Kilgore Corp. Bolovar, TN
IA Indiana Army Ammunition Plant Charleston, IN
IL Illinois Ordnance Plant Marion, IL
IOP Iowa Ordnance Plant Burlington Iowa
JA Joliet Army Ammunition Plant Joliet, IL
K Eastman Kodak  
KN Kansas Ordnance Plant Parsons, KS
KOP Kingsbury Ordnance Plant Kingsbury, IN
L Littlestown Foundry Littlestown, PA
L (in diamond) Littlestown Foundry and Hardware Littlestown, PA
LNX Lynx Incorporated Elkton, MD
LOP Louisiana Ordnance Plant Shreveport, LA
LOW Longhorn Ordnance Works Marshall, TX
LS Lone Star Ordnance Plant Texarkana, TX
MA Milan Army Ammunition Plant Milan, TN
MAI Maryland Assemblies Inc. Perry, FL
MDC Dynamic Corp. of America Hingham MA
MECAR S.A. Belge de Mecanique et d'Armement Belgium
MEI Martin Electronics Inc. Perry, FL
MSO Maxson Electric Corp. Macon, GA
NC New Cumberland Army Depot New Cumberland, PA
NCI Northrop Carolina Inc. Ashville, NC
NF National Fireworks Co. West  Hanover, MA
NFO National Forge and Ordnance Irvine, PA
NOD Nansemond Ordnance Plant Suffolk, VA
NOP Nebraska Ordnance Plant Mead, NB
O Springfield Arsenal  
OA Ogden Arsenal (WWII) Ogden, UT
OA Ordnance Associates Inc. South Pasadena, CA
OOP Oak Ordnance Plant Illiopolis, IL
OPI Ordnance Associates Inc. Northeast, MD
PA Picatinny Arsenal Dover, NJ
PAL Penguin Associates Inc. Parkesburg, PA
PB Pine Bluff Arsenal Little Rock, AR
PBA Pine Bluff Arsenal Little Rock, AR
PCD Panama Canal Depot  
PMC Practical Mfg, Co. Hopkins, MN
POP Pantex Ordnance Plant Panhandle, TX
PP Portland Penninsula Portland OR
RA Raritan Arsenal Raritan, NJ
RD Redstone Ordnance Plant Huntsville, AL
RFX Richmond Foudry & Mfg Co. Inc. Richmond, VA
RIA Rock Island Arsenal Rock Island, IL
RMA Rocky Mountain Arsenal Denver, CO
ROP Ravenna Ordnance Plant Ravenna, OH
stylized "S" Shumaker Naval Ammunition Depot Camden, AR
S (in oval)    
S Spacke Machine and Tool Co. Indianapolis, IN
SAOD San Antonio Ordnance Depot  
SC Scioto Ordnance Plant Marion County, OH
SOD Savanna Ordnance Depot Savanna, IL
SOP Sangamon Ordnance Plant Illiopolis, IL
SWP Smith and Wesson Pyrotechnics Jefferson, OH
TAC Talley Industries Inc. Mesa, AZ
U Utah Ordnance Plant Salt Lake City, UT
UAMCO Universal Automatic Machine Co. Marshall, TX
UCH United Chemical Corp. Lancaster, PA
UMO Universal Match Corp. Phoenix, AZ
UNV Universal Match Corp Phoenix, AZ
UOD Umatilla Ordnance Depot, Hermiston OR
VOP Vigo Ordnance Plant Honey Creek Township, Vigo County, IL
UPC Universal Welder Corp.  
UPCO Universal Propulsion Corp Fairfield CA
WC Wolf Creek Ordnance Plant Milan, TN
WE Weber Engine