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DIN 6904 - 1990

Curved Spring Washers for Screw and Washer Assemblies

DIN 6904 - 1990 螺钉和垫圈组合件用波形弹性垫圈

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Dimensional Specifications — DIN 6904 - 1990 (mm)

Size	P	r	k_max	k_min	s_max	s_min	ds_max	ds_min	k_nominal	ds_nominal
M3	3.6	0.34	0.8	0.86	3.72	9	1.65	1.5	8.78	0.74
M4	9.2	2.20	1	1.07	9.35	21	2.6	2.4	20.67	0.93
M2.5	2.7	0.17	0.5	0.55	2.8	8	1.05	0.9	7.78	0.45
M3.5	5.4	0.57	0.8	0.86	5.52	12	2	1.85

Related Standards

GB 7246 - 1987— Wave Single Coil Spring Lock Washers GB /T 955 - 1987— Wave Spring Washers DIN 137 (B) - 1994— Wave Spring Washers DIN 128 (B) - 1987— Wave Spring Lock Washers DIN 137 (B) - 1987— Wave Spring Washers DIN 42013 - 1988— Spring Washers for Axial Adjustment of Ball Bearings of Small Motors JIS B 1251 (WW/No.3) - 2018— Curved Spring Lock Washers [Table 13] WW/No.3 JIS B 1251 (WW/No.3) - 2001— Curved Spring Lock Washers [Table 8] WW/No.3

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