M1 helmet vs Personnel Armor System for Ground Troops

FORCETALLY

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M1 helmet — licensed reference photograph

AProtective equipment

M1 helmet

Combat helmet

Credit

Graham Sherwood · CC BY-SA 3.0 · Resized · CC BY-SA 3.0 · Source ↗ · Modified

BProtective equipment

Personnel Armor System for Ground Troops

Combat helmet and bulletproof vest

First system

Second system

Measured figures

Head to head

12 of 55 rows sourced on both sides

—

3.2–4.9kgdepending on size Vest depending on size

Mass

All recorded figures & sources

3.2–4.9 kg

depending on size Vest depending on size

Single source

1.41–1.91 kg

Helmet

Single source

Configuration

Details

M1 helmet and Personnel Armor System for Ground Troops configuration
Specification	M1 helmet	Personnel Armor System for Ground Troops
Type	Combat helmet^[source]	Combat helmet and bulletproof vest^[source]
Place of origin	United States^[source]	United States^[source]
In service	1941–1985 (US)^[source]	1983–2003 (U.S. Army & Marines) 1983–present (U.S. Navy) 1985–present (other countries)^[source]
Used by	See Users for details^[source]

Wars	World War II Chinese Civil War Indonesian National Revolution Internal conflict in Myanmar Korean War Hukbalahap Rebellion First Indochina War Cuban Revolution Algerian War Civil conflict in the Philippines Vietnam War Suez Crisis Laotian Civil War Congo Crisis Guatemalan Civil War Portuguese Colonial War Nicaraguan Revolution Colombian conflict South African Border War Dominican Civil War Six-Day War Nigerian Civil War Football War Cambodian Civil War Ethiopian Civil War Ogaden War Eritrean War of Independence War of Attrition Black September Yom Kippur War Indo-Pakistani War of 1965 Indo-Pakistani War of 1971 Turkish invasion of Cyprus Western Sahara War Lebanese Civil War Salvadoran Civil War Sino-Vietnamese War Internal conflict in Peru 1982 Lebanon War Iran–Iraq War Falklands War United States invasion of Grenada United States invasion of Panama Somali Civil War Gulf War Croatian War of Independence Bosnian War Insurgency in Khyber Pakhtunkhwa^[source]	Invasion of Grenada (first usage) Invasion of Panama Persian Gulf War Operation Gothic Serpent Yugoslav Wars Global War on Terrorism War in Afghanistan Iraq War Russo-Ukrainian War 2022 Russo-Ukrainian War^[source]

Designer	Major Harold G. Sydenham^[source]	U.S. Army Soldier Systems Center^[source]

Manufacturer	McCord Radiator and Manufacturing Company and Schlueter Manufacturing Company^[source]	Gibraltar Industries (first known helmet/vest manufacturer) Made by numerous manufacturers, such as Isratex, Inc.^[source]

No. produced	22 million (1945)^[source]	—

Designed	—	1975 (vest), 1977 (helmet)^[source]

Variants	—	U.S. Navy Flak Jacket (Mk 1, Mod 0)^[source]

Material	—	Kevlar^[source]

Protection standard	—	The shell is made from 19 layers of Kevlar , a ballistic aramid fabric treated with a phenolic resin system, and is rated at Threat Level IIIA .^[source]Open-source estimate; PASGT helmet shell, not the PASGT vest It meets the 1800 requirement of MIL-STD-662 E.^[source]Open-source estimate; PASGT helmet; the source does not supply a unit for its stated 1800 requirement Based on testing conducted for the Brass Fetcher Ballistic Testing Company, former ARDEC research engineer John Ervin stated that the PASGT vest is equivalent to NIJ level II or IIA protection: able to stop multiple 124-grain 9×19mm FMJ pistol rounds to its main torso panels (front and back), but susceptible to several closely spaced rounds or shots to the thin neck and shoulder panels.^[source]Open-source estimate; PASGT vest torso-panel independent-test comparison to NIJ II or IIA; the neck/shoulder limitations are retained

Protection standard

—

The shell is made from 19 layers of Kevlar , a ballistic aramid fabric treated with a phenolic resin system, and is rated at Threat Level IIIA .^[source]Open-source estimate; PASGT helmet shell, not the PASGT vest

It meets the 1800 requirement of MIL-STD-662 E.^[source]Open-source estimate; PASGT helmet; the source does not supply a unit for its stated 1800 requirement

Based on testing conducted for the Brass Fetcher Ballistic Testing Company, former ARDEC research engineer John Ervin stated that the PASGT vest is equivalent to NIJ level II or IIA protection: able to stop multiple 124-grain 9×19mm FMJ pistol rounds to its main torso panels (front and back), but susceptible to several closely spaced rounds or shots to the thin neck and shoulder panels.^[source]Open-source estimate; PASGT vest torso-panel independent-test comparison to NIJ II or IIA; the neck/shoulder limitations are retained

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