ASME B18.21.1 TABLE 4

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Helical spring-lock washers, High CollarInformation restricted to registered users: Login | Register now for a 14 day free trial

Dimensions in inches: source ASME B18.21.1 -2009- Table 4 High Collar
Nominal washer size	A max	A min	B max	T mean section thickness (t1+t)/2	W min
No.4 (0.112)	0.120	0.114	0.173	0.022	0.022
No.5 (0.125)	0.133	0.127	0.202	0.030	0.030
No.6 (0.138)	0.148	0.141	0.216	0.030	0.030
No.8 (0.164)
No.10 (0.190)
1/4 - (0.250)
5/16 - (0.3125)
3/8 - (0.375)
7/16 -(0.4375)
1/2 - (0.5)
5/8 - (0.625)
3/4 - (0.75)
7/8 - (0.875)
1 - (1)
1-1/8 (1.125)
1- 1/4 (1.25)
1 - 3/8 (1.375)
1 - 1/2 (1.5)
1 - 3/4 (1.75)
2 - (2)
2 - 1/4 (2.5)
2 - 1/2 (2.5)
2 - 3/4 (2.75)
3 - (3)

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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Standard ASME B18.21.1 TABLE 4