s Series Belleville Disc Springs

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american ring true manufacturing solutions

S Series - Serrated Safety Washers

Part Number	Bolt Size	OD (in.)	ID (in.)	t (in.)	I_o (in.)	OD (mm)	ID (mm)	t (mm)	I_o (mm)	Std.
S-1.6	1.6mm	0.126	0.067	0.014	0.024	3.20	1.70	0.36	0.61	Metric
S-2	2mm	0.157	0.087	0.014	0.024	3.99	2.21	0.36	0.61	Metric
S-2.5	2.5mm	0.189	0.106	0.018	0.035	4.80	2.69	0.46	0.89	Metric
S-3	1/8", 3mm	0.217	0.126	0.018	0.035	5.51	3.20	0.46	0.89	Inch
S-3.5	3.5mm	0.236	0.146	0.018	0.035	5.99	3.71	0.46	0.89	Metric
S-4	5/32", 4mm	0.276	0.169	0.020	0.039	7.01	4.29	0.51	0.99	Inch
S-5	3/16", 5mm	0.354	0.209	0.024	0.043	8.99	5.31	0.61	1.09	Inch
S-6	6mm	0.394	0.252	0.028	0.047	10.01	6.40	0.71	1.19	Metric
S-6.35	1/4"	0.374	0.264	0.028	0.047	9.50	6.71	0.71	1.19	Inch
S-7	7mm	0.472	0.291	0.028	0.051	11.99	7.39	0.71	1.30	Metric
S-8	5/16", 8mm	0.512	0.331	0.031	0.055	13.00	8.41	0.79	1.40	Inch
S-10	3/8", 10mm	0.630	0.413	0.039	0.063	16.00	10.49	0.99	1.60	Inch
S-11.1	7/16"	0.626	0.457	0.039	0.063	15.90	11.61	0.99	1.60	Inch
S-12	12mm	0.709	0.512	0.043	0.067	18.01	13.00	1.09	1.70	Metric
S-12.7	1/2"	0.748	0.539	0.043	0.071	19.00	13.69	1.09	1.80	Metric
S-14	9/16", 14mm	0.866	0.591	0.047	0.079	22.00	15.01	1.19	2.01	Inch
Part Number	Bolt Size	OD (in.)	ID (in.)	t (in.)	I_o (in.)	OD (mm)	ID (mm)	t (mm)	I_o (mm)	Std.
S-16	5/8", 16mm	0.945	0.669	0.051	0.083	24.00	16.99	1.30	2.11	Inch
S-18	18mm	1.063	0.748	0.059	0.091	27.00	19.00	1.50	2.31	Metric
S-19	3/4", 19mm	1.181	0.787	0.059	0.098	30.00	19.99	1.50	2.49	Inch
S-20	20mm	1.181	0.827	0.059	0.098	30.00	21.01	1.50	2.49	Metric
S-22	7/8", 22mm	1.299	0.906	0.059	0.106	32.99	23.01	1.50	2.69	Inch
S-24	24mm	1.417	1.008	0.071	0.114	35.99	25.60	1.80	2.90	Metric
S-25.4	1"	1.299	1.063	0.079	0.122	32.99	27.00	2.01	3.10	Inch
S-27	27mm	1.535	1.126	0.079	0.122	38.99	28.60	2.01	3.10	Metric
S-30	1-1/8", 30mm	1.772	1.244	0.079	0.142	45.01	31.60	2.01	3.61	Inch
S-36	1-3/8", 36mm	2.126	1.496	0.098	0.165	54.00	38.00	2.49	4.19	Inch