BS100 | HYDROSEALS

O-ring chart BS100

The O-ring chart covers the AS568 O-Ring Sizes published by the Society of Automotive Engineers (S.A.E.).

The purpose of this chart is to specify the inside diameters, cross-sections and size identification codes (dash numbers) for o-rings.

REF.	ROD INCH	ROD MM	CYLINDER INCH	CYLINDER MM	ORING I.D INCH	ORING I.D MM
102	1/16	1.6	1/4	6.0	0.049	1.24
103	3/32	2.4	9/32	7.0	0.081	2.06
104	1/8	3	5/16	7.6	0.112	2.84
105	5/32	4	11/32	8.7	0.143	3.63
106	3/16	4.5	3/8	9.5	0.174	4.42
107	7/32	5.5		10.2	0.206	5.23
108	1/4	6	7/16	11	0.37	6.02
109	5/16	7.6	1/2	12.7	0.299	7.60
110	3/8	9.5	9/16	14.2	0.362	9.19
111	7/16	11	5/8	15.6	0.424	10.78
112	1/2	12.5	11/16	17.2	0.487	12.37
113	9/16	14	3/4	18.8	0.549	13.95
114	5/8	15.5	13/16	20.5	0.612	15.54
115	11/16	17.4	7/8	22	0.674	17.13
116	3/4	19	15/16	23.5	0.737	18.72
117	13/16	20.5	1	25.4	0.799	20.29
118	7/8	22	1 1/16	26.8	0.862	21.90
119	15/16	23.5	1 1/8	28.5	0.924	23.47
120	1	25	1 3/16	30	0.987	25.07
121	1 1/16	27	1 1/4	31.5	1.049	26.65
122	1 1/8	28	1 5/16	33.5	1.112	28.25
123	1 3/16	30	1 3/8	35	1.174	29.83
124	1 1/4	31.5	1 7/16	36.3	1.237	31.42
125	1 5/16	33	1 1/2	38	1.299	33
126	1 3/8	34.5	1 9/16	40	1.362	34.60
127	1 7/14	36	1 5/8	41	1.424	36.17
128	1 1/2	38	1 11/16	43	1.487	37.77
128	1 9/16	39.5	1 3/4	44.5	1.549	39.35
130	1 5/8	41	1 13/16	46	1.612	40.95
131	1 11/16	42.5	1 7/8	47	1.674	42.52
132	1 3/4	44	1 15/16	46	1.737	44.12
133	1 13/16	45.5	2	51	1.799	45.70
134	1 7/8	47	2 1/16	53	1.862	47.30
135	1 15/16	49	2 1/8	54	1.925	48.90
136	2	50	2 3/16	56	1.987	50.47
137	2 1/16	52	2 1/4	58	2.050	52.07
138	2 1/8	53	2 5/16	59	2.112	53.65
139	2 3/16	55	2 3/8	61	2.175	55.25
140	2 1/4	56.5	2 7/16	62.5	2.237	56.82
141	2 5/16	58.5	2 1/2	64	2.300	58.42
142	2 3/8	60	2 9/16	66	2.362	60
143	2 7/16	61.5	2 5/8	67	2.425	61.60
144	2 1/2	63	2 11/16	69	2.487	63.17
145	2 9/16	65	2 3/4	70	2.550	64.77
146	2 5/8	66	2 13/16	72	2.612	66.35
147	2 11/16	68	2 7/8	74	2.675	67.95
148	2 3/4	69.5	2 15/16	75	2.737	69.52
149	2 13/16	71	3	77	2.800	71.12
150	2 7/8	73	3 1/16	78	2.862	72.70
151	3	76	3 1/16	82	2.987	75.88
152	3 1/4	82	3 7/16	88	3.237	82.22
153	3 1/2	88.5	3 11/16	94	3.487	88.58
154	3 3/4	95	3 15/16	101	3.737	94.93
155	4	101	4 3/16	107	3.987	101.28
156	4 1/4	107	4 7/16	113	4.237	107.63
157	4 1/2	114	4 11/16	120	4.487	113.98
158	4 3/4	120	4 15/16	126	4.737	120.33
159	5	127	5 3/16	132	4.987	126.67
160	5 1/4	133	5 7/16	138	5.237	133
161	5 1/2	139	5 11/16	145	5.487	139.38
162	5 3/4	145	5 15/16	151	5.737	145.73
163	6	151	6 3/16	158	5.987	152.07
164	6 1/4	158	6 7/16	164	6.237	158.43
165	6 1/2	164	6 11/16	170	6.487	164.78
166	6 3/4	170	6 15/16	177	6.737	171.13
167	7	177	7 3/16	183	6.987	177.48
168	7 1/4	183	7 7/16	190	7.237	183.83
169	7 1/2	190	7 11/16	196	7.487	190.18
170	7 3/4	196	7 15/16	202	7.737	196.53
171	8	202	8 3/16	209	7.987	202.88
172	8 1/4	209	8 7/16	215	8.237	209.23
173	8 1/2	215	8 11/16	222	8.487	215.58
174	8 1/4	221	8 15/16	228	8.737	221.93
175	9	228	9 3/16	234	8.987	228.28
176	9 1/4	234	9 7/16	240	9.237	234.63
177	9 1/2	240	9 11/16	247	9.487	240.98
178	9 3/4	247	9 15/16	253	9.737	247.33

O-ring chart BS100

AS - 000 | 1.78

AS - 100 | 2.62

AS - 200 | 3.53

AS - 300 | 5.33

AS - 400 | 6.99

Caterpillar