HazMat Tool — substance information

Detonators for ammunition

HMT 15 June 2026

UN / ID: UN 0365
Hazard class: 1.4B
Packing group: n/a (multiple — see tabs)
ERG guide: —
Special provisions: —
Source: 49 CFR §172 (15 June 2026)

Spot an error in this entry?

On this page

Detonators for ammunition

A detonator or blasting cap is a small explosive device or small quantity of explosive, which can be combined with a fuse, used for detonating a larger charge of high explosive. Detonators come in a variety of types, depending on how they are initiated (chemically, mechanically, or electrically) and details of their inner working, which often involve several stages. Types of detonators include non-electric and electric. Non-electric detonators are typically stab or pyrotechnic while electric are typically "hot wire" (low voltage), exploding bridge wire (high voltage) or explosive foil (very high voltage) Wikipedia

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

Packing group
Packing group
Packing group

(3) Hazard Class

(4) Identification number

UN 0365

(5) Packing Group

n/a

Comparison View of PG

(6) Labels

Explosives (1.4B)

Compatibility group of explosives - Description of substances or article to be classified

Group: B

Article containing a primary explosive substance and not containing two or more effective protective features. Some articles, such as detonators for blasting, detonator assemblies for blasting and primers, cap-type, are included, even though they do not contain primary explosives.

Source: 49 CFR §173.52

Cargo Aircraft Only (Cargo Aircraft Only)

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	62	see 49 CFR §173.62
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	75 kg

(10) Vessel stowage

(10A) Location

05

Stowage category “05” means the material may be stowed “on deck” in closed cargo transport units on a cargo vessel (up to 12 passengers) but the material is prohibited on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

25	see 49 CFR §176.84

Source: 49 CFR §176.84

(3) Hazard Class

(4) Identification number

UN 0366

(5) Packing Group

n/a

Comparison View of PG

(6) Labels

Explosives (1.4S)

Compatibility group of explosives - Description of substances or article to be classified

Group: S

Substance or article so packed or designed that any hazardous effects arising from accidental functioning are limited to the extent that they do not significantly hinder or prohibit fire fighting or other emergency response efforts in the immediate vicinity of the package.

Source: 49 CFR §173.52

(7) Special Provisions (§172.102)

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

347	Effective July 1, 2011, for transportation by aircraft, this entry may only be used if the results of Test series 6(d) of Part I of the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter) have demonstrated that any hazardous effects from accidental functioning are confined to within the package. Effective January 1, 2012, for transportation by vessel, this entry may only be used if the results of Test Series 6(d) of Part I of the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter) have demonstrated that any hazardous effects from accidental functioning are confined to within the package. Effective January 1, 2014, for transportation domestically by highway or rail, this entry may only be used if the results of Test Series 6(d) of Part I of the UN Manual of Tests and Criteria (IBR, see § 171.7 of this subchapter) have demonstrated that any hazardous effects from accidental functioning are confined to within the package. Testing must be performed or witnessed by a person who is approved by the Associate Administrator (see § 173.56(b) of this subchapter). All successfully conducted tests or reassignment to another compatibility group require the issuance of a new or revised approval by the Associate Administrator prior to transportation on or after the dates specified for each authorized mode of transport in this special provision. Browse special provision 347

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	62	see 49 CFR §173.62
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	25 kg
(9B) Cargo aircraft only	100 kg

(10) Vessel stowage

(10A) Location

01

Stowage category “01” means the material may be stowed “on deck” in closed cargo transport units or “under deck” on a cargo vessel (up to 12 passengers) or on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

25	see 49 CFR §176.84

Source: 49 CFR §176.84

(3) Hazard Class

(4) Identification number

UN 0364

(5) Packing Group

n/a

Comparison View of PG

(6) Labels

Explosives (1.2B)

Compatibility group of explosives - Description of substances or article to be classified

Group: B

Article containing a primary explosive substance and not containing two or more effective protective features. Some articles, such as detonators for blasting, detonator assemblies for blasting and primers, cap-type, are included, even though they do not contain primary explosives.

Source: 49 CFR §173.52

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	62	see 49 CFR §173.62
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	Forbidden

(10) Vessel stowage

(10A) Location

05

Stowage category “05” means the material may be stowed “on deck” in closed cargo transport units on a cargo vessel (up to 12 passengers) but the material is prohibited on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

25	see 49 CFR §176.84

Source: 49 CFR §176.84

(3) Hazard Class

(4) Identification number

UN 0073

(5) Packing Group

n/a

Comparison View of PG

(6) Labels

Explosives (1.1B)

Compatibility group of explosives - Description of substances or article to be classified

Group: B

Article containing a primary explosive substance and not containing two or more effective protective features. Some articles, such as detonators for blasting, detonator assemblies for blasting and primers, cap-type, are included, even though they do not contain primary explosives.

Source: 49 CFR §173.52

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	62	see 49 CFR §173.62
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	Forbidden

(10) Vessel stowage

(10A) Location

05

Stowage category “05” means the material may be stowed “on deck” in closed cargo transport units on a cargo vessel (up to 12 passengers) but the material is prohibited on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

25	see 49 CFR §176.84

Source: 49 CFR §176.84

Packing group comparison

Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.

	PG n/a	PG n/a	PG n/a	PG n/a
1
2	Detonators for ammunition	Detonators for ammunition	Detonators for ammunition	Detonators for ammunition
3	1.4B	1.4S	1.2B	1.1B
4	UN 0365	UN 0366	UN 0364	UN 0073
5	n/a	n/a	n/a	n/a
6	1.4B	1.4S	1.2B	1.1B
7	n/a	347	n/a	n/a
8A	None	None	None	None
8B	62	62	62	62
8C	None	None	None	None
9A	Forbidden	25 kg	Forbidden	Forbidden
9B	75 kg	100 kg	Forbidden	Forbidden
10A	05	01	05	05
10B	25	25	25	25

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Hazard class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

	Must not be loaded, transported, or stored together in the same vehicle or facility.
	May be loaded, transported, or stored together.
	May be loaded, transported, or stored together only with restrictions.

Similar substances

UN / ID	Proper shipping name	Hazard class
UN 0099	Fracturing devices, explosive, without detonators for oil wells	1.1D
NA 0124	Jet perforating guns, charged oil well with detonator	1.1D
UN 0124	Jet perforating guns, charged oil well without detonator	1.1D
NA 0494	Jet perforating guns, charged oil well, with detonator	1.4D
UN 0494	Jet perforating guns, charged, oil well, without detonator	1.4D
UN 0511	Detonators, electronic programmable for blasting	1.1B
UN 0513	Detonators, electronic programmable for blasting	1.4S
UN 0512	Detonators, electronic programmable for blasting	1.4B
UN 0456	Detonators, electric for blasting	1.4S
UN 0255	Detonators, electric, for blasting	1.4B
UN 0030	Detonators, electric, for blasting	1.1B
UN 0029	Detonators, non-electric, for blasting	1.1B
UN 0455	Detonators, non-electric, for blasting	1.4S
UN 0267	Detonators, non-electric, for blasting	1.4B
UN 0443	Charges, explosive, commercial without detonator	1.2D