O-Ring Tables

O-Ring Table BS 1806

The BS 1806 standard series: all inner diameters and cord thicknesses with reference number. Use the search to quickly find your size.

← All O-Ring Tables

Origin

United Kingdom

Sizes

463

Cord thicknesses

Size example

12.42 × 1.78 mm

Size table

BS 1806 no.	Inner diameter d₁ (mm)	Cord thickness d₂ (mm)
-001	0.74	1.02
-606	1.78	1.02
-607	2.54	1.02
-002	1.07	1.27
-003	1.42	1.52
-902	6.07	1.63
-903	7.65	1.63
-004	1.78	1.78
-005	2.57	1.78
-006	2.9	1.78
-801	3.18	1.78
-007	3.68	1.78
-008	4.47	1.78
-802	4.75	1.78
-009	5.28	1.78
-010	6.07	1.78
-803	6.35	1.78
-610	6.76	1.78
-011	7.65	1.78
-804	7.94	1.78
-611	8.74	1.78
-012	9.25	1.78
-013	10.82	1.78
-806	11.1	1.78
-014	12.42	1.78
-015	14	1.78
-016	15.6	1.78
-017	17.17	1.78
-018	18.77	1.78
-019	20.35	1.78
-020	21.95	1.78
-021	23.52	1.78
-022	25.12	1.78
-023	26.7	1.78
-024	28.3	1.78
-025	29.87	1.78
-026	31.47	1.78
-027	33.05	1.78
-028	34.65	1.78
-517	36.27	1.78
-029	37.82	1.78
-519	39.45	1.78
-030	41	1.78
-031	44.17	1.78
-032	47.35	1.78
-033	50.52	1.78
-034	53.7	1.78
-035	56.87	1.78
-036	60.05	1.78
-037	63.22	1.78
-038	66.4	1.78
-039	69.57	1.78
-040	72.75	1.78
-041	75.92	1.78
-532	78.99	1.78
-042	82.27	1.78
-534	85.34	1.78
-043	88.62	1.78
-536	91.69	1.78
-044	94.97	1.78
-538	98.04	1.78
-045	101.32	1.78
-540	104.39	1.78
-046	107.67	1.78
-542	110.74	1.78
-047	114.02	1.78
-544	117.09	1.78
-048	120.37	1.78
-546	123.44	1.78
-049	126.72	1.78
-548	129.41	1.78
-050	133.07	1.78
-550	135.76	1.78
-551	138.94	1.78
-552	142.11	1.78
-553	145.29	1.78
-554	148.46	1.78
-555	151.64	1.78
-556	154.82	1.78
-557	157.99	1.78
-558	161.16	1.78
-559	164.34	1.78
-560	170.05	1.78
-561	170.69	1.78
-562	173.86	1.78
-102	1.24	2.62
-103	2.06	2.62
-104	2.84	2.62
-105	3.63	2.62
-106	4.45	2.62
-107	5.23	2.62
-108	6.02	2.62
-109	7.59	2.62
-110	9.19	2.62
-613	9.93	2.62
-111	10.77	2.62
-614	11.91	2.62
-112	12.37	2.62
-807	12.7	2.62
-615	13.11	2.62
-113	13.94	2.62
-616	15.09	2.62
-114	15.54	2.62
-809	15.88	2.62
-115	17.12	2.62
-810	17.45	2.62
-617	17.86	2.62
-116	18.72	2.62
-117	20.29	2.62
-812	20.62	2.62
-118	21.89	2.62
-813	22.23	2.62
-119	23.47	2.62
-120	23.8	2.62
-121	25.07	2.62
-122	26.64	2.62
-123	29.82	2.62
-124	31.42	2.62
-125	32.99	2.62
-126	34.59	2.62
-127	36.17	2.62
-128	37.77	2.62
-129	39.34	2.62
-130	40.94	2.62
-131	42.52	2.62
-132	44.12	2.62
-133	45.69	2.62
-134	47.29	2.62
-135	48.9	2.62
-136	50.47	2.62
-137	52.07	2.62
-138	53.64	2.62
-139	55.25	2.62
-140	56.82	2.62
-141	58.42	2.62
-142	59.99	2.62
-143	61.6	2.62
-144	63.17	2.62
-145	64.77	2.62
-146	66.34	2.62
-147	67.95	2.62
-148	69.52	2.62
-149	71.12	2.62
-150	72.69	2.62
-640	74.27	2.62
-151	75.87	2.62
-641	77.44	2.62
-642	80.62	2.62
-152	82.22	2.62
-643	83.79	2.62
-153	88.57	2.62
-154	94.92	2.62
-155	101.27	2.62
-156	107.62	2.62
-157	113.97	2.62
-158	120.32	2.62
-159	126.67	2.62
-160	133.02	2.62
-161	139.37	2.62
-162	145.72	2.62
-163	152.07	2.62
-164	158.42	2.62
-165	164.77	2.62
-166	171.12	2.62
-167	177.47	2.62
-168	183.82	2.62
-169	190.17	2.62
-170	196.52	2.62
-171	202.87	2.62
-172	209.22	2.62
-173	215.57	2.62
-174	221.92	2.62
-175	228.27	2.62
-176	234.62	2.62
-177	240.97	2.62
-178	247.32	2.62
-201	4.34	3.53
-202	5.94	3.53
-203	7.52	3.53
-204	9.12	3.53
-205	10.69	3.53
-206	12.29	3.53
-207	13.94	3.53
-208	15.47	3.53
-209	17.07	3.53
-210	18.64	3.53
-211	20.22	3.53
-212	21.82	3.53
-213	23.39	3.53
-214	24.99	3.53
-618	25.81	3.53
-215	26.57	3.53
-216	28.17	3.53
-217	29.74	3.53
-218	31.34	3.53
-219	32.92	3.53
-220	34.52	3.53
-221	36.09	3.53
-222	37.69	3.53
-824	39.7	3.53
-223	40.87	3.53
-825	41.28	3.53
-826	42.85	3.53
-224	44.04	3.53
-827	44.45	3.53
-828	46.04	3.53
-225	47.22	3.53
-829	47.63	3.53
-830	49.2	3.53
-226	50.39	3.53
-831	50.8	3.53
-832	52.39	3.53
-227	53.57	3.53
-833	53.98	3.53
-834	55.55	3.53
-228	56.74	3.53
-835	57.15	3.53
-836	58.74	3.53
-229	59.92	3.53
-837	60.33	3.53
-838	61.9	3.53
-230	63.09	3.53
-839	63.5	3.53
-840	65.1	3.53
-231	66.27	3.53
-841	66.68	3.53
-842	68.25	3.53
-232	69.44	3.53
-843	69.85	3.53
-844	71.44	3.53
-233	72.62	3.53
-845	73.03	3.53
-846	74.6	3.53
-234	75.79	3.53
-235	78.97	3.53
-236	82.14	3.53
-237	85.32	3.53
-238	88.49	3.53
-239	91.67	3.53
-240	94.84	3.53
-241	98.02	3.53
-242	101.19	3.53
-243	104.37	3.53
-244	107.54	3.53
-245	110.72	3.53
-246	113.89	3.53
-247	117.07	3.53
-248	120.24	3.53
-249	123.42	3.53
-250	126.59	3.53
-251	129.77	3.53
-252	132.94	3.53
-253	136.12	3.53
-254	139.29	3.53
-255	142.47	3.53
-256	145.64	3.53
-257	148.82	3.53
-258	151.99	3.53
-259	158.34	3.53
-260	164.69	3.53
-261	171.04	3.53
-262	177.39	3.53
-263	183.74	3.53
-264	190.09	3.53
-265	196.44	3.53
-266	202.79	3.53
-267	209.14	3.53
-268	215.49	3.53
-269	221.84	3.53
-270	228.19	3.53
-271	234.54	3.53
-272	240.89	3.53
-273	247.24	3.53
-274	253.59	3.53
-275	266.29	3.53
-276	278.99	3.53
-277	291.69	3.53
-278	304.39	3.53
-279	329.79	3.53
-280	355.19	3.53
-281	380.59	3.53
-309	10.46	5.33
-310	12.07	5.33
-311	13.64	5.33
-312	15.24	5.33
-313	16.81	5.33
-314	18.42	5.33
-315	19.99	5.33
-316	21.59	5.33
-317	23.16	5.33
-318	24.77	5.33
-319	26.34	5.33
-320	27.94	5.33
-321	29.51	5.33
-322	31.12	5.33
-323	32.69	5.33
-324	34.29	5.33
-325	37.47	5.33
-326	40.64	5.33
-327	43.82	5.33
-328	46.99	5.33
-329	50.17	5.33
-330	53.34	5.33
-331	56.52	5.33
-332	59.69	5.33
-333	62.87	5.33
-334	66.04	5.33
-335	69.22	5.33
-336	72.39	5.33
-619	74.61	5.33
-337	75.57	5.33
-338	78.74	5.33
-620	79.78	5.33
-339	81.92	5.33
-340	85.09	5.33
-341	88.27	5.33
-621	89.69	5.33
-342	91.44	5.33
-343	94.62	5.33
-344	97.79	5.33
-622	100	5.33
-345	100.97	5.33
-346	104.14	5.33
-347	107.32	5.33
-623	109.54	5.33
-348	110.49	5.33
-349	113.67	5.33
-350	116.84	5.33
-860	117.48	5.33
-351	120.02	5.33
-861	120.65	5.33
-352	123.19	5.33
-862	123.83	5.33
-353	126.37	5.33
-863	127	5.33
-354	129.54	5.33
-864	130.18	5.33
-355	132.72	5.33
-865	133.35	5.33
-356	135.89	5.33
-866	136.53	5.33
-357	139.07	5.33
-867	139.7	5.33
-358	142.24	5.33
-868	142.88	5.33
-359	145.42	5.33
-869	146.05	5.33
-360	148.59	5.33
-870	149.23	5.33
-361	151.77	5.33
-644	154.94	5.33
-362	158.12	5.33
-645	161.29	5.33
-363	164.47	5.33
-646	167.64	5.33
-364	170.82	5.33
-647	173.99	5.33
-365	177.17	5.33
-366	183.52	5.33
-367	189.87	5.33
-368	196.22	5.33
-369	202.57	5.33
-370	208.92	5.33
-371	215.27	5.33
-372	221.62	5.33
-373	227.97	5.33
-374	234.32	5.33
-375	240.67	5.33
-376	247.02	5.33
-377	253.37	5.33
-378	266.07	5.33
-379	278.77	5.33
-380	291.47	5.33
-381	304.17	5.33
-382	329.57	5.33
-383	354.97	5.33
-384	380.37	5.33
-385	405.26	5.33
-386	430.66	5.33
-387	456.06	5.33
-388	481.46	5.33
-389	506.86	5.33
-390	532.26	5.33
-391	557.66	5.33
-392	582.68	5.33
-393	608.08	5.33
-394	633.48	5.33
-395	658.88	5.33
-425	113.67	6.99
-624	114.71	6.99
-426	116.84	6.99
-427	120.02	6.99
-428	123.19	6.99
-625	124.61	6.99
-429	126.37	6.99
-430	129.54	6.99
-431	132.72	6.99
-626	134.54	6.99
-432	135.89	6.99
-433	139.07	6.99
-434	142.24	6.99
-435	145.42	6.99
-436	148.59	6.99
-437	151.77	6.99
-872	155.58	6.99
-438	158.12	6.99
-627	159.54	6.99
-874	161.93	6.99
-439	164.47	6.99
-628	166.7	6.99
-876	168.28	6.99
-440	170.82	6.99
-878	174.63	6.99
-441	177.17	6.99
-880	180.98	6.99
-442	183.52	6.99
-882	187.33	6.99
-443	189.87	6.99
-884	193.68	6.99
-444	196.22	6.99
-886	200.03	6.99
-445	202.57	6.99
-445A	208.92	6.99
-446	215.27	6.99
-446A	221.62	6.99
-447	227.97	6.99
-447A	234.32	6.99
-448	240.67	6.99
-448A	247.02	6.99
-449	253.37	6.99
-449A	259.72	6.99
-450	266.07	6.99
-450A	272.42	6.99
-451	278.77	6.99
-451A	285.12	6.99
-452	291.47	6.99
-452A	297.82	6.99
-453	304.17	6.99
-648	310.52	6.99
-454	316.87	6.99
-649	323.22	6.99
-455	329.57	6.99
-650	335.92	6.99
-456	342.27	6.99
-457	354.97	6.99
-458	367.67	6.99
-459	380.37	6.99
-460	393.07	6.99
-461	405.26	6.99
-462	417.96	6.99
-463	430.66	6.99
-464	443.36	6.99
-465	456.06	6.99
-466	468.76	6.99
-467	481.46	6.99
-468	494.16	6.99
-469	506.86	6.99
-470	532.26	6.99
-471	557.66	6.99
-472	582.68	6.99
-473	608.08	6.99
-474	633.48	6.99
-475	658.88	6.99

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O-ring groove dimensions at a glance

Groove width and depth per cord thickness for flange, piston and rod seals, static and dynamic.

To the O-ring groove dimension table →