A-A-52471D
1. Cylinder. The cylinder shall conform to DOT 3AA or 3AL with a minimum service pressure of 1,800 pounds per square inch gage. The cylinder shall have an internal volume of 105 ± 5 cubic inches and a diameter as shown in figure 1. Cylinder shall have a flat bottom, enabling the extinguisher to stand in an upright position without support.
2. Bracket. The bracket shall be as specified in figure 2. The bracket shall hold the fire extinguisher against static loading of 350 pounds downward and 88 pounds upward along the extinguisher axis when mounted vertically. The bracket shall permit quick, easy removal of the extinguisher from any position when the quick release clamp is released. The bracket shall also hold the extinguisher with a 200 pound outward loading applied to the extinguisher at the strap. This CID is not intended to limit bracket construction to features other than as shown herein. In addition, the bracket shall not show evidence of destruction to any metal surface when subjected to the salt spray corrosion test of ANSI/UL 154.
NOTE: Dimensions are in inches.
FIGURE 1. Complete unit overall dimensions.
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