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Width
1"
1
1/4"
1
1/2"
1
3/4"
2"
2
1/2"
3"
3
1/2"
4"
4
1/2"
5"
5
1/8"
5
1/2"
6"
6
1/4"
6
1/2"
7"
8"
8
5/8"
9"
9
1/2"
10"
10
3/4"
11"
12"
16"
16
3/4"
17"
18
3/4"
19
1/2"
19
3/4"
22
3/4"
23"
23
3/8"
25"
34
3/4"
Thickness
0.016"
0.021"
0.047"
1/16"
1/8"
3/16"
0.188"
0.197"
1/4"
3/8"
5/8"
3/4"
Length
1"
1
1/4"
1
1/2"
1
3/4"
2"
2
1/2"
3"
3
1/2"
4"
4
1/2"
5"
5
1/2"
6"
6
1/4"
6
1/2"
7"
8"
8
5/8"
9"
9
1/4"
10"
10
3/4"
11"
11
1/2"
12"
16"
17"
19
3/4"
21"
23"
24"
26"
29"
29
3/4"
30
3/8"
31"
33
3/4"
34
3/8"
49
1/2"
Shape
Bar
Sheet
Material
Glass
Glass Ceramic
Color
Amber
Clear
Maximum Temperature
445° F
1,000° F
1,065° F
1,255° F
1,650° F
2,100° F
Edge Type
Chamfered
Straight
Edge Fabrication
Cut
Ground
REACH
Compliant
Not Compliant
RoHS
Compliant
Not Compliant
Export Control Classification Number (ECCN)
EAR99
DFARS Specialty Metals
Exempt
Hardness
Knoop 418 HK 0.1
Knoop 570 HK 0.1
Vickers 649 HV 0.2
Vickers 651 HV 0.2
Not Rated
Refractive Index
1.46
1.47
1.50
1.51
Minimum Temperature
-20° F
Not Rated
Thermal Conductivity @ Temperature
1.2 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F
10.23 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F
1.4 W/(m⋅°C) @ 20° C
Density
0.08 lb/in³
0.086 lb/in³
0.09 lb/in³
Modulus of Elasticity
63 kN/mm²
69 kN/mm²
72 kN/mm²
77 kN/mm²
Window Viewing Width
3"
4"
5"
5
1/2"
6"
7"
8"
10"
11"
15"
17
3/4"
19"
20"
21
3/4"
22"
24"
29"
33
3/4"
Light Transmission
91%
92%
Opening Height
6
11/16"
8
11/16"
9"
10
11/16"
12"
14
11/16"
18
11/16"
22"
24"
24
11/16"
27"
30"
30
11/16"
30
3/4"
32"
34
3/4"
35"
36"
46"
Window Viewing Height
5"
7"
9"
10"
13"
17"
20"
22"
23"
25"
28"
28
3/4"
29"
30"
32
3/4"
33"
34"
44"
Opening Width
4
11/16"
5"
6"
7"
7
3/16"
8"
9"
9
11/16"
12"
12
11/16"
16
11/16"
19
3/4"
20
11/16"
21
11/16"
23
3/4"
24"
25
11/16"
26"
30
11/16"
35
3/4"
Flammability Rating
NFPA Flammability Rating
UL Flammability Rating
Mounting Location
Door
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151 Products
Raw Materials
Glass
Clear and highly heat and chemical resistant; often used in sights, lighting, and lab equipment
112 products
Ceramic
Hard and wear resistant, it also withstands corrosion and high temperatures
10 products
Building and Machinery Hardware
Door Windows
See what's on the other side before opening a door
18 products
Electrical
Electrical Enclosure Inspection Windows
View components without exposing them to dust and moisture
11 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)