scope:

This specification covers three classes of fixed fire extinguishers, referred to herein as "extinguishers", "valve and cylinder assemblies" and "assemblies"; and an electrically and manually actuated discharge valve, referred to herein as "discharge valve" and "valve". These items are used with bromotrifluoromethane (Halon 1301) fire extinguishing systems in military vehicles (see 6.1 and 6.2).

The extinguishers will be of the following classes, as specified (see 6.2 and 6.9):

Class 1 - A valve and cylinder assembly containing 2.27 kilograms (kg) (5 pounds-(lb)) of Halon 1301 in a 2360 cubic centimeter (cm³) (144 cubic inch (in³)) receiver cylinder. Class 2 - A valve and cylinder assembly containing 3.18 kg (7 lb) of Halon 1301 in a 3340 cm³ (204 in³) receiver cylinder. Class 3 - A valve and cylinder assembly containing 4.54 kg (10 lb) of Halon 1301 in a 4720 cm³ (288 in³) receiver cylinder.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-E/BLUE, Warren, MI 48397-5000, by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter.