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GB/T 93-1987
Spring washers
Nom
d min
d max
b min
b max
h min
h max
H min
H max
Φ2
2.1
2.35
0.42
0.58
0.42
0.58
1
1.25
Φ2.5
2.6
2.85
0.57
0.73
0.57
0.73
1.3
1.63
Φ3
3.1
3.4
0.7
0.9
0.7
0.9
1.6
2
Φ4
4.1
4.4
1
1.2
1
1.2
2.2
2.75
Φ5
5.1
5.4
1.2
1.4
1.2
1.4
2.6
3.25
Φ6
6.1
6.68
1.5
1.7
1.5
1.7
3.2
4
Φ8
8.1
8.68
2
2.2
2
2.2
4.2
5.25
Φ10
10.2
10.9
2.45
2.75
2.45
2.75
5.2
6.5
Φ12
12.2
12.9
2.95
3.25
2.95
3.25
6.2
7.75
Φ14
14.2
14.9
3.4
3.8
3.4
3.8
7.2
9
Φ16
16.2
16.9
3.9
4.3
3.9
4.3
8.2
10.25
Φ18
18.2
19.04
4.3
4.7
4.3
4.7
9
11.25
Φ20
20.2
21.04
4.8
5.2
4.8
5.2
10
12.5
Φ22
22.5
23.34
5.3
5.7
5.3
5.7
11
13.75
Φ24
24.5
25.5
5.8
6.2
5.8
6.2
12
15
Φ27
27.5
28.5
6.5
7.1
6.5
7.1
13.6
17
Φ30
30.5
31.5
7.2
7.8
7.2
7.8
15
18.75
Φ33
33.5
34.7
8.2
8.8
8.2
8.8
17
21.25
Φ36
36.5
37.7
8.7
9.3
8.7
9.3
18
22.5
Φ39
39.5
40.7
9.7
10.3
9.7
10.3
20
25
Φ42
42.5
43.7
10.2
10.8
10.2
10.8
21
26.25
Φ45
45.5
46.7
10.7
11.3
10.7
11.3
22
27.5
Φ48
48.5
49.7
11.7
12.3
11.7
12.3
24
30
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