O-Rings

Among the myriad of different O-Ring dimension standards available, the AS568 is the United States’ most popular. It was previously designated as ARP 568 and is now maintained by the Society of Automotive Engineers. AS568 lists 369 different sizes of O-Rings with corresponding tolerances and dimensions. This standard features O-Rings in five different cross-sections, with inside diameters that range from 1/32” to 26”. Tube fitting boss seals are also included in AS568 as “-900” series O-Ring sizes, intended for use in MS33649 (superseded now by SAE-AS5202) straight thread tube fittings.

In addition, J Royal offers a wide variety of metric and non-standard O-Rings. As a subset of the available metric sizes, J Royal stocks several Japanese Industrial Standard (JIS B2401) sizes. If you require a special size or specific chemical resistance, J Royal can create custom O-Rings, specially made to your specific requirements.

AS568 O-Rings

	Dimensions in Inches		Nominal Size (reference only)
AS568C	I.D.	±	C/S	Vol. in Cu. Inches	I.D.	O.D.	C/S
CROSS SECTION .070" ± .003"
001	.029	.004	.040	.0003	1/32	3/32	1/32
002	.042	.004	.050	.0006	3/64	9/64	3/64
003	.056	.004	.060	.0010	1/16	3/16	1/16
004	.070	.005	.070	.0017	5/64	13/64	1/16
005	.101	.005	.070	.0021	3/32	7/32	1/16
006	.114	.005	.070	.0022	1/8	1/4	1/16
007	.145	.005	.070	.0026	5/32	9/32	1/16
008	.176	.005	.070	.0030	3/16	5/16	1/16
009	.208	.005	.070	.0034	7/32	11/32	1/16
010	.239	.005	.070	.0037	1/4	3/8	1/16
011	.301	.005	.070	.0045	5/16	7/16	1/16
012	.364	.005	.070	.0052	3/8	1/2	1/16
013	.426	.005	.070	.0060	7/16	9/16	1/16
014	.489	.005	.070	.0068	1/2	5/8	1/16
015	.551	.007	.070	.0075	9/16	11/16	1/16
016	.614	.009	.070	.0083	5/8	3/4	1/16
017	.676	.009	.070	.0090	11/16	13/16	1/16
018	.739	.009	.070	.0098	3/4	7/8	1/16
019	.801	.009	.070	.0105	13/16	15/16	1/16
020	.864	.009	.070	.0113	7/8	1	1/16
021	.926	.009	.070	.0120	15/16	1-1/16	1/16
022	.989	.010	.070	.0128	1	1-1/8	1/16
023	1.051	.010	.070	.0136	1-1/16	1-3/16	1/16
024	1.114	.010	.070	.0143	1-1/8	1-1/4	1/16
025	1.176	.011	.070	.0151	1-3/16	1-5/16	1/16
026	1.239	.011	.070	.0158	1-1/4	1-3/8	1/16
027	1.301	.011	.070	.0166	1-5/16	1-7/16	1/16
028	1.364	.013	.070	.0173	1-3/8	1-1/2	1/16
029	1.489	.013	.070	.0188	1-1/2	1-5/8	1/16
030	1.614	.013	.070	.0204	1-5/8	1-3/4	1/16
031	1.739	.015	.070	.0219	1-3/4	1-7/8	1/16
032	1.864	.015	.070	.0234	1-7/8	2	1/16
033	1.989	.018	.070	.0249	2	2-1/8	1/16
034	2.114	.018	.070	.0264	2-1/8	2-1/4	1/16
035	2.239	.018	.070	.0279	2-1/4	2-3/8	1/16
036	2.364	.018	.070	.0294	2-3/8	2-1/2	1/16
037	2.489	.018	.070	.0309	2-1/2	2-5/8	1/16
038	2.614	.020	.070	.0324	2-5/8	2-3/4	1/16
039	2.739	.020	.070	.0340	2-3/4	2-7/8	1/16
040	2.864	.020	.070	.0355	2-7/8	3	1/16
041	2.989	.024	.070	.0370	3	3-1/8	1/16
042	3.239	.024	.070	.0400	3-1/4	3-3/8	1/16
043	3.489	.024	.070	.0430	3-1/2	3-5/8	1/16
044	3.739	.027	.070	.0460	3-3/4	3-7/8	1/16
045	3.989	.027	.070	.0491	4	4-1/8	1/16
046	4.239	.030	.070	.0521	4-1/4	4-3/8	1/16
047	4.489	.030	.070	.0551	4-1/2	4-5/8	1/16
048	4.739	.030	.070	.0581	4-3/4	4-7/8	1/16
049	4.989	.037	.070	.0612	5	5-1/8	1/16
050	5.239	.037	.070	.0643	5-1/4	5-3/8	1/16
CROSS SECTION .103" ± .003"
102	.049	.005	.103	.0040	1/16	1/4	3/32
103	.081	.005	.103	.0048	3/32	9/32	3/32
104	.112	.005	.103	.0056	1/8	5/16	3/32
105	.143	.005	.103	.0064	5/32	11/32	3/32
106	.174	.005	.103	.0072	3/16	3/8	3/32
107	.206	.005	.103	.0080	7/32	13/32	3/32
108	.237	.005	.103	.0088	1/4	7/16	3/32
109	.299	.005	.103	.0105	5/16	1/2	3/32
110	.362	.005	.103	.0122	3/8	9/16	3/32
111	.424	.005	.103	.0138	7/16	5/8	3/32
112	.487	.005	.103	.0154	1/2	11/16	3/32
113	.549	.007	.103	.0171	9/16	3/4	3/32
114	.612	.009	.103	.0187	5/8	13/16	3/32
115	.674	.009	.103	.0203	11/16	7/8	3/32
116	.737	.009	.103	.0220	3/4	15/16	3/32
117	.799	.010	.103	.0236	13/16	1	3/32
118	.862	.010	.103	.0253	7/8	1-1/16	3/32
119	.924	.010	.103	.0269	15/16	1-1/8	3/32
120	.987	.010	.103	.0285	1	1-3/16	3/32
121	1.049	.010	.103	.0302	1-1/16	1-1/4	3/32
122	1.112	.010	.103	.0318	1-1/8	1-5/16	3/32
123	1.174	.012	.103	.0334	1-3/16	1-3/8	3/32
124	1.237	.012	.103	.0351	1-1/4	1-7/16	3/32
125	1.299	.012	.103	.0367	1-5/16	1-1/2	3/32
126	1.362	.012	.103	.0383	1-3/8	1-9/16	3/32
127	1.424	.012	.103	.0400	1-7/16	1-5/8	3/32
128	1.487	.012	.103	.0416	1-1/2	1-11/16	3/32
129	1.549	.015	.103	.0432	1-9/16	1-3/4	3/32
130	1.612	.015	.103	.0449	1-5/8	1-13/16	3/32
131	1.674	.015	.103	.0465	1-11/16	1-7/8	3/32
132	1.737	.015	.103	.0482	1-3/4	1-15/16	3/32
133	1.799	.015	.103	.0498	1-13/16	2	3/32
134	1.862	.015	.103	.0514	1-7/8	2-1/16	3/32
135	1.925	.017	.103	.0531	1-15/16	2-1/8	3/32
136	1.987	.017	.103	.0547	2	2-3/16	3/32
137	2.050	.017	.103	.0564	2-1/16	2-1/4	3/32
138	2.112	.017	.103	.0580	2-1/8	2-5/16	3/32
139	2.175	.017	.103	.0596	2-3/16	2-3/8	3/32
140	2.237	.017	.103	.0612	2-1/4	2-7/16	3/32
141	2.300	.020	.103	.0629	2-5/16	2-1/2	3/32
142	2.362	.020	.103	.0645	2-3/8	2-9/16	3/32
143	2.425	.020	.103	.0662	2-7/16	2-5/8	3/32
144	2.487	.020	.103	.0678	2-1/2	2-11/16	3/32
145	2.55	.020	.103	.0694	2-9/16	2-3/4	3/32
146	2.612	.020	.103	.0711	2-5/8	2-13/16	3/32
147	2.675	.022	.103	.0727	2-11/16	2-7/8	3/32
148	2.737	.022	.103	.0743	2-3/4	2-15/16	3/32
149	2.800	.022	.103	.0760	2-13/16	3	3/32
150	2.862	.022	.103	.0776	2-7/8	3-1/16	3/32
151	2.987	.024	.103	.0809	3	3-3/16	3/32
152	3.237	.024	.103	.0874	3-1/4	3-7/16	3/32
153	3.487	.024	.103	.0940	3-1/2	3-11/16	3/32
154	3.737	.028	.103	.1005	3-3/4	3-15/16	3/32
155	3.987	.028	.103	.1071	4	4-3/16	3/32
156	4.237	.030	.103	.1136	4-1/4	4-7/16	3/32
157	4.487	.030	.103	.1202	4-1/2	4-11/16	3/32
158	4.737	.030	.103	.1267	4-3/4	4-15/16	3/32
159	4.987	.035	.103	.1332	5	5-3/16	3/32
160	5.237	.035	.103	.1398	5-1/4	5-7/16	3/32
161	5.487	.035	.103	.1463	5-1/2	5-11/16	3/32
162	5.737	.035	.103	.1529	5-3/4	5-15/16	3/32
163	5.987	.035	.103	.1594	6	6-3/16	3/32
164	6.237	.040	.103	.1660	6-1/4	6-7/16	3/32
165	6.487	.040	.103	.1726	6-1/2	6-11/16	3/32
166	6.737	.040	.103	.1791	6-3/4	6-15/16	3/32
167	6.987	.040	.103	.1856	7	7-3/16	3/32
168	7.237	.045	.103	.1921	7-1/4	7-7/16	3/32
169	7.487	.045	.103	.1986	7-1/2	7-11/16	3/32
170	7.737	.045	.103	.2052	7-3/4	7-15/16	3/32
171	7.987	.045	.103	.2117	8	8-3/16	3/32
172	8.237	.050	.103	.2182	8-1/4	8-7/16	3/32
173	8.487	.050	.103	.2247	8-1/2	8-11/16	3/32
174	8.737	.050	.103	.2313	8-3/4	8-15/16	3/32
175	8.897	.050	.103	.2378	9	9-3/16	3/32
176	9.237	.055	.103	.2443	9-1/4	9-7/16	3/32
177	9.487	.055	.103	.2508	9-1/2	9-11/16	3/32
178	9.737	.055	.103	.2574	9-3/4	9-15/16	3/32
CROSS SECTION .139" ± .004"
201	.171	.005	.139	.0148	3/16	7/16	1/8
202	.234	.005	.139	.0178	1/4	1/2	1/8
203	.296	.005	.139	.0207	5/16	9/16	1/8
204	.359	.005	.139	.0237	3/8	5/8	1/8
205	.421	.005	.139	.0267	7/16	11/16	1/8
206	.484	.005	.139	.0297	1/2	3/4	1/8
207	.546	.007	.139	.0327	9/16	13/16	1/8
208	.609	.009	.139	.0357	5/8	7/8	1/8
209	.671	.009	.139	.0386	11/16	15/16	1/8
210	.734	.010	.139	.0416	3/4	1	1/8
211	.796	.010	.139	.0446	13/16	1-1/16	1/8
212	.859	.010	.139	.0476	7/8	1-1/8	1/8
213	.921	.010	.139	.0505	15/16	1-3/16	1/8
214	.984	.010	.139	.0535	1	1-1/4	1/8
215	1.046	.010	.139	.0565	1-1/16	1-5/16	1/8
216	1.109	.012	.139	.0595	1-1/8	1-3/8	1/8
217	1.171	.012	.139	.0624	1-3/16	1-7/16	1/8
218	1.234	.012	.139	.0656	1-1/4	1-1/2	1/8
219	1.296	.012	.139	.0684	1-5/16	1-9/16	1/8
220	1.359	.012	.139	.0714	1-3/8	1-5/8	1/8
221	1.421	.012	.139	.0744	1-7/16	1-11/16	1/8
222	1.484	.015	.139	.0774	1-1/2	1-3/4	1/8
223	1.609	.015	.139	.0833	1-5/8	1-7/8	1/8
224	1.734	.015	.139	.0893	1-3/4	2	1/8
225	1.859	.018	.139	.0952	1-7/8	2-1/8	1/8
226	1.984	.018	.139	.1012	2	2-1/4	1/8
227	2.109	.018	.139	.1072	2-1/8	2-3/8	1/8
228	2.234	.020	.139	.1131	2-1/4	2-1/2	1/8
229	2.359	.020	.139	.1191	2-3/8	2-5/8	1/8
230	2.484	.020	.139	.1250	2-1/2	2-3/4	1/8
231	2.609	.020	.139	.1310	2-5/8	2-7/8	1/8
232	2.734	.024	.139	.1370	2-3/4	3	1/8
233	2.859	.024	.139	.1429	2-7/8	3-1/8	1/8
234	2.984	.024	.139	.1489	3	3-1/4	1/8
235	3.109	.024	.139	.1548	3-1/8	3-3/8	1/8
236	3.234	.024	.139	.1608	3-1/4	3-1/2	1/8
237	3.359	.024	.139	.1668	3-3/8	3-5/8	1/8
238	3.484	.024	.139	.1727	3-1/2	3-3/4	1/8
239	3.609	.028	.139	.1787	3-5/8	3-7/8	1/8
240	3.734	.028	.139	.1846	3-3/4	4	1/8
241	3.859	.028	.139	.1906	3-7/8	4-1/8	1/8
242	3.984	.028	.139	.1966	4	4-1/4	1/8
243	4.109	.028	.139	.2025	4-1/8	4-3/8	1/8
244	4.234	.030	.139	.2085	4-1/4	4-1/2	1/8
245	4.359	.030	.139	.2144	4-3/8	4-5/8	1/8
246	4.484	.030	.139	.2204	4-1/2	4-3/4	1/8
247	4.609	.030	.139	.2264	4-5/8	4-7/8	1/8
248	4.734	.030	.139	.2323	4-3/4	5	1/8
249	4.859	.035	.139	.2383	4-7/8	5-1/8	1/8
250	4.984	.035	.139	.2442	5	5-1/4	1/8
251	5.109	.035	.139	.2502	5-1/8	5-3/8	1/8
252	5.234	.035	.139	.2561	5-1/4	5-1/2	1/8
253	5.359	.035	.139	.2621	5-3/8	5-5/8	1/8
254	5.484	.035	.139	.2681	5-1/2	5-3/4	1/8
255	5.609	.035	.139	.2740	5-5/8	5-7/8	1/8
256	5.734	.035	.139	.2800	5-3/4	6	1/8
257	5.859	.035	.139	.2859	5-7/8	6-1/8	1/8
258	5.984	.035	.139	.2919	6	6-1/4	1/8
259	6.234	.040	.139	.3038	6-1/4	6-1/2	1/8
260	6.484	.040	.139	.3157	6-1/2	6-3/4	1/8
261	6.734	.040	.139	.3276	6-3/4	7	1/8
262	6.984	.040	.139	.3396	7	7-1/4	1/8
263	7.234	.045	.139	.3515	7-1/4	7-1/2	1/8
264	7.484	.045	.139	.3634	7-1/2	7-3/4	1/8
265	7.734	.045	.139	.3753	7-3/4	8	1/8
266	7.984	.045	.139	.3872	8	8-1/4	1/8
267	8.234	.050	.139	.3992	8-1/4	8-1/2	1/8
268	8.484	.050	.139	.4111	8-1/2	8-3/4	1/8
269	8.734	.050	.139	.4230	8-3/4	9	1/8
270	8.984	.050	.139	.4349	9	9-1/4	1/8
271	9.234	.055	.139	.4468	9-1/4	9-1/2	1/8
272	9.484	.055	.139	.4588	9-1/2	9-3/4	1/8
273	9.734	.055	.139	.4707	9-3/4	10	1/8
274	9.984	.055	.139	.4826	10	10-1/4	1/8
275	10.484	.055	.139	.5064	10-1/2	10-3/4	1/8
276	10.984	.065	.139	.5303	11	11-1/4	1/8
277	11.484	.065	.139	.5541	11-1/2	11-3/4	1/8
278	11.984	.065	.139	.5779	12	12-1/4	1/8
279	12.984	.065	.139	.6256	13	13-1/4	1/8
280	13.984	.065	.139	.6733	14	14-1/4	1/8
281	14.984	.065	.139	.7210	15	15-1/4	1/8
282	15.955	.075	.139	.7672	16	16-1/4	1/8
283	16.955	.080	.139	.8149	17	17-1/4	1/8
284	17.955	.085	.139	.8627	18	18-1/4	1/8
CROSS SECTION .210" ± .005"
309	.412	.005	.210	.0677	7/16	13/16	3/16
310	.475	.005	.210	.0745	1/2	7/8	3/16
311	.537	.007	.210	.0813	9/16	15/16	3/16
312	.600	.009	.210	.0881	5/8	1	3/16
313	.662	.009	.210	.0949	11/16	1-1/16	3/16
314	.725	.010	.210	.1017	3/4	1-1/8	3/16
315	.787	.010	.210	.1085	13/16	1-3/16	3/16
316	.850	.010	.210	.1153	7/8	1-1/4	3/16
317	.912	.010	.210	.1221	15/16	1-5/16	3/16
318	.975	.010	.210	.1289	1	1-3/8	3/16
319	1.037	.010	.210	.1357	1-1/16	1-/7/16	3/16
320	1.100	.012	.210	.1425	1-1/8	1-1/2	3/16
321	1.162	.012	.210	.1493	1-3/16	1-9/16	3/16
322	1.225	.012	.210	.1561	1-1/4	1-5/8	3/16
323	1.287	.012	.210	.1629	1-5/16	1-11/16	3/16
324	1.350	.012	.210	.1697	1-3/8	1-3/4	3/16
325	1.475	.015	.210	.1833	1-1/2	1-7/8	3/16
326	1.600	.015	.210	.1970	1-5/8	2	3/16
327	1.725	.015	.210	.2106	1-3/4	2-1/8	3/16
328	1.850	.015	.210	.2242	1-7/8	2-1/4	3/16
329	1.975	.018	.210	.2378	2	2-3/8	3/16
330	2.100	.018	.210	.2514	2-1/8	2-1/2	3/16
331	2.225	.018	.210	.2650	2-1/4	2-5/8	3/16
332	2.350	.018	.210	.2789	2-3/8	2-3/4	3/16
333	2.475	.020	.210	.2922	2-1/2	2-7/8	3/16
334	2.600	.020	.210	.3058	2-5/8	3	3/16
335	2.725	.020	.210	.3194	2-3/4	3-1/8	3/16
336	2.850	.020	.210	.3330	2-7/8	3-1/4	3/16
337	2.975	.024	.210	.3466	3	3-3/8	3/16
338	3.100	.024	.210	.3602	3-1/8	3-1/2	3/16
339	3.225	.024	.210	.3738	3-1/4	3-5/8	3/16
340	3.350	.024	.210	.3874	3-3/8	3-3/4	3/16
341	3.475	.024	.210	.4010	3-1/2	3-7/8	3/16
342	3.600	.028	.210	.4146	3-5/8	4	3/16
343	3.725	.028	.210	.4282	3-3/4	4-1/8	3/16
344	3.850	.028	.210	.4418	3-7/8	4-1/4	3/16
345	3.975	.028	.210	.4554	4	4-3/8	3/16
346	4.100	.028	.210	.4690	4-1/8	4-1/2	3/16
347	4.225	.030	.210	.4826	4-1/4	4-5/8	3/16
348	4.350	.030	.210	.4962	4-3/8	4-3/4	3/16
349	4.475	.030	.210	.5098	4-1/2	4-7/8	3/16
350	4.600	.030	.210	.5234	4-5/8	5	3/16
351	4.725	.030	.210	.5370	4-3/4	5-1/8	3/16
352	4.850	.030	.210	.5506	4-7/8	5-1/4	3/16
353	4.975	.037	.210	.5642	5	5-3/8	3/16
354	5.100	.037	.210	.5778	5-1/8	5-1/2	3/16
355	5.225	.037	.210	.5914	5-1/4	5-5/8	3/16
356	5.350	.037	.210	.6050	5-3/8	5-3/4	3/16
357	5.475	.037	.210	.6186	5-1/2	5-7/8	3/16
358	5.600	.037	.210	.6322	5-5/8	6	3/16
359	5.725	.037	.210	.6458	5-3/4	6-1/8	3/16
360	5.850	.037	.210	.6594	5-7/8	6-1/4	3/16
361	5.975	.037	.210	.6730	6	6-3/8	3/16
362	6.225	.040	.210	.7002	6-1/4	6-5/8	3/16
363	6.475	.040	.210	.7274	6-1/2	6-7/8	3/16
364	6.725	.040	.210	.7546	6-3/4	7-1/8	3/16
365	6.975	.040	.210	.7818	7	7-3/8	3/16
366	7.225	.045	.210	.8090	7-1/4	7-5/8	3/16
367	7.475	.045	.210	.8362	7-1/2	7-7/8	3/16
368	7.725	.045	.210	.8634	7-3/4	8-1/8	3/16
369	7.975	.045	.210	.8906	8	8-3/8	3/16
370	8.225	.050	.210	.9178	8-1/4	8-5/8	3/16
371	8.475	.050	.210	.9450	8-1/2	8-7/8	3/16
372	8.725	.050	.210	.9722	8-3/4	9-1/8	3/16
373	8.975	.050	.210	.9994	9	9-3/8	3/16
374	9.225	.055	.210	1.0266	9-1/4	9-5/8	3/16
375	9.475	.055	.210	1.0538	9-1/2	9-7/8	3/16
376	9.725	.055	.210	1.0810	9-3/4	10-1/8	3/16
377	9.975	.055	.210	1.1083	10	10-3/8	3/16
378	10.475	.060	.210	1.1627	10-1/2	10-7/8	3/16
379	10.975	.060	.210	1.2171	11	11-3/8	3/16
380	11.475	.065	.210	1.2737	11-1/2	11-7/8	3/16
381	11.975	.065	.210	1.2715	12	12-3/8	3/16
382	12.975	.065	.210	1.3259	13	13-3/8	3/16
383	13.975	.070	.210	1.4347	14	14-3/8	3/16
384	14.975	.070	.210	1.5435	15	15-3/8	3/16
385	15.955	.075	.210	1.6523	16	16-3/8	3/16
386	16.955	.080	.210	1.7590	17	17-3/8	3/16
387	17.955	.085	.210	1.9766	18	18-3/8	3/16
388	18.955	.090	.210	2.0854	19	19-3/8	3/16
389	19.955	.095	.210	2.1942	20	20-3/8	3/16
390	20.955	.095	.210	2.3030	21	21-3/8	3/16
391	21.955	.100	.210	2.4118	22	22-3/8	3/16
392	22.940	.105	.210	2.5190	23	23-3/8	3/16
393	23.940	.110	.210	2.6278	24	24-3/8	3/16
394	24.940	.115	.210	2.7366	25	25-3/8	3/16
395	25.940	.120	.210	2.8454	26	26-3/8	3/16
CROSS SECTION .275" ± .006"
425	4.475	.033	.275	.8863	4-1/2	5	1/4
426	4.600	.033	.275	.9097	4-5/8	5-1/8	1/4
427	4.725	.033	.275	.9330	4-3/4	5-1/4	1/4
428	4.850	.033	.275	.9563	4-7/8	5-3/8	1/4
429	4.975	.037	.275	.9796	5	5-1/2	1/4
430	5.100	.037	.275	1.0030	5-1/8	5-5/8	1/4
431	5.225	.037	.275	1.0263	5-1/4	5-3/4	1/4
432	5.350	.037	.275	1.0496	5-3/8	5-7/8	1/4
433	5.475	.037	.275	1.0729	5-1/2	6	1/4
434	5.600	.037	.275	1.0962	5-5/8	6-1/8	1/4
435	5.725	.037	.275	1.1196	5-3/4	6-1/4	1/4
436	5.850	.037	.275	1.1429	5-7/8	6-3/8	1/4
437	5.975	.037	.275	1.1662	6	6-1/2	1/4
438	6.225	.040	.275	1.2129	6-1/4	6-3/4	1/4
439	6.475	.040	.275	1.2595	6-1/2	7	1/4
440	6.725	.040	.275	1.3062	6-3/4	7-1/4	1/4
441	6.975	.040	.275	1.3528	7	7-1/2	1/4
442	7.225	.045	.275	1.3995	7-1/4	7-3/4	1/4
443	7.475	.045	.275	1.4461	7-1/2	8	1/4
444	7.725	.045	.275	1.4928	7-3/4	8-1/4	1/4
445	7.975	.045	.275	1.5394	8	8-1/2	1/4
446	8.475	.035	.275	1.6327	8-1/2	9	1/4
447	8.975	.055	.275	1.7260	9	9-1/2	1/4
448	9.475	.055	.275	1.8193	9-1/2	10	1/4
449	9.975	.055	.275	1.9126	10	10-1/2	1/4
450	10.475	.060	.275	2.0059	10-1/2	11	1/4
451	10.975	.060	.275	2.0092	11	11-1/2	1/4
452	11.475	.060	.275	2.1925	11-1/2	12	1/4
453	11.975	.060	.275	2.2858	12	12-1/2	1/4
454	12.475	.060	.275	2.3791	12-1/2	13	1/4
455	12.975	.060	.275	2.4724	13	13-1/2	1/4
456	13.475	.070	.275	2.5657	13-1/2	14	1/4
457	13.975	.070	.275	2.6590	14	14-1/2	1/4
458	14.475	.070	.275	2.7523	14-1/2	15	1/4
459	14.975	.070	.275	2.8456	15	15-1/2	1/4
460	15.475	.070	.275	2.9389	15-1/2	16	1/4
461	15.955	.075	.275	3.0285	16	16-1/2	1/4
462	16.455	.075	.275	3.1218	16-1/2	17	1/4
463	16.955	.080	.275	3.2151	17	17-1/2	1/4
464	17.455	.085	.275	3.3084	17-1/2	18	1/4
465	17.955	.085	.275	3.4017	18	18-1/2	1/4
466	18.455	.085	.275	3.4950	18-1/2	19	1/4
467	18.955	.090	.275	3.5883	19	19-1/2	1/4
468	19.455	.090	.275	3.6816	19-1/2	20	1/4
469	19.955	.095	.275	3.7749	20	20-1/2	1/4
470	20.955	.095	.275	3.9615	21	21-1/2	1/4
471	21.955	.100	.275	4.1481	22	22-1/2	1/4
472	22.940	.105	.275	4.3319	23	23-1/2	1/4
473	23.940	.110	.275	4.5185	24	24-1/2	1/4
474	24.940	.115	.275	4.7051	25	25-1/2	1/4
475	25.940	.120	.275	4.8917	26	26-1/2	1/4