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(Non-preferred) dimensions in parentheses.

Conical Spring Washers - Class 1 - Heavy Load

JIS B 1252 (1H) - 1995

Display drawing:

Screw Thread
d

(14)

(18)

(22)

d	min=nominal size
	max
d_c	max=nominal size
	min
h	Nominal Size
	max
	min
H

6.4	8.4	10.5	13	15	17	19	21	23
6.65	8.65	10.8	13.3	15.3	17.3	19.35	21.35	23.35
12.5	17	21	24	28	30	34	37	39
12.2	16.7	20.6	23.6	27.6	29.6	33.5	36.5	38.5
1.2	1.8	2.2	2.5	3	3.5	4	4.5	5
1.265	1.885	2.3	2.6	3.11	3.61	4.11	4.64	5.14
1.135	1.715	2.1	2.4	2.89	3.39	3.89	4.36	4.86
1.55	2.15	2.65	3.05	3.65	4.1	4.64	5.2	5.65

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