This document provides specifications for a line of galvanized steel flexible metallic conduit products labeled JS 200 through JS 290. It includes the inner and outer diameter dimensions, nominal sizes from 3/8 inch to 4 inches, minimum and maximum length of each roll, and minimum bending radius for each product number and size.

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Galvanized Steel Core.
Light weight style.
High Flexibility. Reduced-wall Flex. Steel Condut.
JS 200
JS 210
JS 220
JS 230
JS 240
JS 250
JS 260
JS 270
JS 280
JS 290
Inner Diameter Outside Diameter
mm mm
3/8”
1/2”
3/4”
1”
1¼”
1½“
2”
2½”
3”
4”
12.3
15.8
20.7
26.4
34.7
40.0
51.3
63.0
78.0
101.6
12.8
16.3
21.2
26.8
35.4
40.6
51.9
63.6
78.7
102.6
15.7
19.2
24.5
30.4
39.6
45.2
56.5
70.2
85.2
108.5
16.2
19.7
25.1
31.0
40.3
45.8
57.0
70.8
85.9
109.5
30
43
50
57
70
80
95
140
150
190
50
60
50
50
50
25
25
15
15
10
Catalog
Number
Nominal
Size min.
mm
max.
mm
min.
mm
max.
mm
Min
Bending
Radius
Length
of
Each Roll
FLEXIBLE METALLIC CONDUIT
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