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 MIL-HDBK-1013/12
Table 14
Minimum Glazing Specifications for Low Threat Severity Level
Cross-Section,
Figure
Type
Minimum
inch (mm)
Thickness,
inch (mm)
Air Gap
1 (25)
Figure F-3
1/4 (6) LAMa Agb, 1/4 (6) AIR,
1/2 (13) LAM POLYc
Extruded
13/16 (20)
Figure F-8
3/16 (5) AG, 1/2 (13) IONOMERd,
Ionomer
1/8 (3) AG
Glass-Clad
11/16 (17)
3/16 (5) AG, 3/8 (10) POLY, 3/16
Figure F-12
Polycarbonate
(5) AG
Monolithic
3/8 (12)
3/8 (10) POLY
N/Ae
Polycarbonate
a
Laminated
b
Annealed glass
c
Polycarbonate
d
Extruded ionomer
e
Not applicable
Table 15
Minimum Frame Specifications for Low Threat Severity Level
Item
Size, inch
Minimum
Frame Thickness
1/4 (6 mm) steel
Minimum
Removable Stop Thickness
3/16 (5 mm) steel
Minimum
Bite Depth
1 (25 mm)
Minimum
Glazing Rabbet Depth
1-1/4 (32 mm)
Maximum
Width Between Frame Members
42 (1.1 meter)
Table 16
Minimum Anchorage Size for Low Threat Severity Level
Anchor Bolt
Minimum
Minimum
Diameter,
Embedment,
inch (mm)
inch (mm)
Lag Bolt
3/8 (9)
3 (76)
Table 17
Lag Bolt Maximum Spacing for Low Threat Severity Level
Space
Maximum Spacing,
inch (mm)
Frame Corner to Bolt
9 (230)
Between Adjacent Bolts
18 (460)
Table 18
Removable Stop Anchorage Size for Low Threat Severity Level
Bolt Type
Minimum Size,
Minimum Number Per Side
69
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