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CNS 4309-1978
Conical spring washers—Type B
Nom
d max
d min
dc max
dc min
h max
h min
H
Φ4
4.5
4.3
7.5
7.25
0.485
0.415
0.7
Φ5
5.5
5.3
9
8.75
0.6
0.52
0.85
Φ6
6.65
6.4
10.5
10.2
0.67
0.59
0.95
Φ8
8.65
8.4
13.5
13.2
0.95
0.85
1.3
Φ10
10.8
10.5
16.5
16.2
1.18
1.06
1.6
Φ12
13.3
13
19
18.6
1.315
1.185
1.75
Φ14
15.3
15
22
21.6
1.47
1.33
2
Φ16
17.3
17
25
24.6
1.68
1.52
2.3
Φ18
19.35
19
28
27.6
1.885
1.715
2.6
Φ20
21.35
21
31
30.5
2.09
1.91
2.8
Φ22
23.35
23
34
33.5
2.35
2.15
3.2
Φ24
25.35
25
37
36.5
2.6
2.4
3.5
Φ27
28.35
28
41
40.5
2.9
2.7
3.8
Φ30
31.4
31
46
45.5
3.26
3.04
4.3
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