AS568 300 Series

AS568 300-series dash numbers 309–395 with 0.210 inch (5.33 mm) cross section for large flanges, heavy hydraulics and process equipment.

Cross section 0.210" (5.33 mm) · Dash 309–395 · 87 sizes

Series Overview

AS568 300 Series groups 87 AS568 dash numbers (309–395) sharing a 0.210" (5.33 mm) cross section. Inside diameters span 0.412" to 25.940" ID (10.5–658.9 mm). These sizes dominate large flanges, heavy hydraulics, process equipment because the 5.33 mm cord diameter balances conformability, extrusion resistance, and groove width in standard SAE and industrial glands. Select a dash number below or use the size converter to cross-reference ISO 3601 and JIS B 2401 equivalents.

Full AS568 chart Size converter AS568 guide

Dash Number	ID (inch)	CS (inch)	ID (mm)	CS (mm)	Action
AS568-309	0.412	0.210	10.46	5.33	View
AS568-310	0.475	0.210	12.07	5.33	View
AS568-311	0.537	0.210	13.64	5.33	View
AS568-312	0.600	0.210	15.24	5.33	View
AS568-313	0.662	0.210	16.81	5.33	View
AS568-314	0.725	0.210	18.42	5.33	View
AS568-315	0.787	0.210	19.99	5.33	View
AS568-316	0.850	0.210	21.59	5.33	View
AS568-317	0.912	0.210	23.16	5.33	View
AS568-318	0.975	0.210	24.77	5.33	View
AS568-319	1.037	0.210	26.34	5.33	View
AS568-320	1.100	0.210	27.94	5.33	View
AS568-321	1.162	0.210	29.51	5.33	View
AS568-322	1.225	0.210	31.12	5.33	View
AS568-323	1.287	0.210	32.69	5.33	View
AS568-324	1.350	0.210	34.29	5.33	View
AS568-325	1.475	0.210	37.47	5.33	View
AS568-326	1.600	0.210	40.64	5.33	View
AS568-327	1.725	0.210	43.82	5.33	View
AS568-328	1.850	0.210	46.99	5.33	View
AS568-329	1.975	0.210	50.17	5.33	View
AS568-330	2.100	0.210	53.34	5.33	View
AS568-331	2.225	0.210	56.52	5.33	View
AS568-332	2.350	0.210	59.69	5.33	View
AS568-333	2.475	0.210	62.87	5.33	View
AS568-334	2.600	0.210	66.04	5.33	View
AS568-335	2.725	0.210	69.22	5.33	View
AS568-336	2.850	0.210	72.39	5.33	View
AS568-337	2.975	0.210	75.57	5.33	View
AS568-338	3.100	0.210	78.74	5.33	View
AS568-339	3.225	0.210	81.92	5.33	View
AS568-340	3.350	0.210	85.09	5.33	View
AS568-341	3.475	0.210	88.27	5.33	View
AS568-342	3.600	0.210	91.44	5.33	View
AS568-343	3.725	0.210	94.62	5.33	View
AS568-344	3.850	0.210	97.79	5.33	View
AS568-345	3.975	0.210	100.97	5.33	View
AS568-346	4.100	0.210	104.14	5.33	View
AS568-347	4.225	0.210	107.32	5.33	View
AS568-348	4.350	0.210	110.49	5.33	View
AS568-349	4.475	0.210	113.67	5.33	View
AS568-350	4.600	0.210	116.84	5.33	View
AS568-351	4.725	0.210	120.02	5.33	View
AS568-352	4.850	0.210	123.19	5.33	View
AS568-353	4.975	0.210	126.37	5.33	View
AS568-354	5.100	0.210	129.54	5.33	View
AS568-355	5.225	0.210	132.72	5.33	View
AS568-356	5.350	0.210	135.89	5.33	View
AS568-357	5.475	0.210	139.07	5.33	View
AS568-358	5.600	0.210	142.24	5.33	View
AS568-359	5.725	0.210	145.42	5.33	View
AS568-360	5.850	0.210	148.59	5.33	View
AS568-361	5.975	0.210	151.77	5.33	View
AS568-362	6.225	0.210	158.12	5.33	View
AS568-363	6.475	0.210	164.47	5.33	View
AS568-364	6.725	0.210	170.82	5.33	View
AS568-365	6.975	0.210	177.17	5.33	View
AS568-366	7.225	0.210	183.52	5.33	View
AS568-367	7.475	0.210	189.87	5.33	View
AS568-368	7.725	0.210	196.22	5.33	View
AS568-369	7.975	0.210	202.57	5.33	View
AS568-370	8.225	0.210	208.92	5.33	View
AS568-371	8.475	0.210	215.27	5.33	View
AS568-372	8.725	0.210	221.62	5.33	View
AS568-373	8.975	0.210	227.97	5.33	View
AS568-374	9.225	0.210	234.32	5.33	View
AS568-375	9.475	0.210	240.67	5.33	View
AS568-376	9.725	0.210	247.02	5.33	View
AS568-377	9.975	0.210	253.37	5.33	View
AS568-378	10.475	0.210	266.07	5.33	View
AS568-379	10.975	0.210	278.77	5.33	View
AS568-380	11.475	0.210	291.47	5.33	View
AS568-381	11.975	0.210	304.17	5.33	View
AS568-382	12.975	0.210	329.57	5.33	View
AS568-383	13.975	0.210	354.97	5.33	View
AS568-384	14.975	0.210	380.37	5.33	View
AS568-385	15.955	0.210	405.26	5.33	View
AS568-386	16.955	0.210	430.66	5.33	View
AS568-387	17.955	0.210	456.06	5.33	View
AS568-388	18.955	0.210	481.46	5.33	View
AS568-389	19.955	0.210	506.86	5.33	View
AS568-390	20.955	0.210	532.26	5.33	View
AS568-391	21.955	0.210	557.66	5.33	View
AS568-392	22.940	0.210	582.68	5.33	View
AS568-393	23.940	0.210	608.08	5.33	View
AS568-394	24.940	0.210	633.48	5.33	View
AS568-395	25.940	0.210	658.88	5.33	View

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We supply AS568 300 Series sizes in NBR, FKM, EPDM, VMQ, HNBR, and PTFE. MOQ from 1 piece.

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