Rocket Seals is a leading seal and O-Ring specialist, supplying metric O-Rings for all industrial applications. We stock metric O-Rings from the leading manufacturers in the industry and continuously update and expand our inventory to meet the changing needs of industry and take advantage of the latest materials and technology advances.

Our extensive inventory of metric O-Rings includes: test

Wide range of sizes, IDs and ODs
Buna, FKM, EPR, Silicone, PTFE, PTFE encapsulated, PTFE coated, Kalrez, Neoprene, Chemraz, Simriz, Highly Saturated Nitrile, Urethane, Mil-spec, and many specialty compounds
Quantities from small orders to large production, quantity orders
Custom kitting, assemblies, and splicing kits

We have experience and expertise in all industries, including,

Metric O-Rings Colors

Special order O-rings and seals in different colors are increasingly popular with OEMs for parts identification and are priceless if assembly or repair mistakes are avoided. Please call Rocket for specific information (lead times, minimums) about both custom colors and stock colors for your production or private labeled repair kits.

Metric O Ring Sizes

We can provide O-Rings with material and manufacturing processes certifications to industry standards if required for your application. If your application requires unique or hard-to-find sizes, shapes, or materials, we will work with our manufacturing partners to source the O-Rings your needs.

O-Rings provide seals between two or more parts in equipment, machinery, and motors. They are used to prevent leakage of liquids or gasses and to provide protection against compression or wear in moving parts.

We offer same-day shipping and perform quality checks of every order, so you know that your critical parts will meet your application specifications.

At Rocket Seals, our commitment to the highest standard of customer service includes technical support to assist you in selecting the O-Ring that will meet your application requirements.

OEM Metric Orings

We partner with our customers – providing you with technical expertise and superior service to ensure that your purchases meet or exceed your expectations. Whether you are an OEM looking for metric O-Rings for new product development or existing product production, or a facilities or maintenance manager looking for a replacement or wear parts, our expert team can recommend and source the right metric O-Ring for your application.

Contact Rocket Seals today to see how we can solve your OEM and MRO challenges.

O-ring Sizes: Standard and Metric
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 001	0.74	1.02
2 - 002	1.07	1.27
2 - 003	1.42	1.52
2 - 004	1.78	1.78
2 - 005	2.57	1.78
2 - 006	2.9	1.78
2 - 007	3.68	1.78
2 - 008	4.47	1.78
2 - 009	5.28	1.78
2 - 010	6.07	1.78
2 - 011	7.65	1.78
2 - 012	9.25	1.78
2 - 013	10.82	1.78
2 - 014	12.42	1.78
2 - 015	14	1.78
2 - 016	15.6	1.78
2 - 017	17.17	1.78
2 - 018	18.77	1.78
2 - 019	20.35	1.78
2 - 020	21.95	1.78
2 - 021	23.52	1.78
2 - 022	25.12	1.78
2 - 023	26.7	1.78
2 - 024	28.3	1.78
2 - 025	29.87	1.78
2 - 026	31.47	1.78
2 - 027	33.05	1.78
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 028	34.65	1.78
2 - 029	37.82	1.78
2 - 030	41	1.78
2 - 031	44.17	1.78
2 - 032	47.35	1.78
2 - 033	50.52	1.78
2 - 034	53.7	1.78
2 - 035	56.87	1.78
2 - 036	60.05	1.78
2 - 037	63.22	1.78
2 - 038	66.4	1.78
2 - 039	69.57	1.78
2 - 040	72.75	1.78
2 - 041	75.92	1.78
2 - 042	82.27	1.78
2 - 043	88.62	1.78
2 - 044	94.97	1.78
2 - 045	101.32	1.78
2 - 046	107.67	1.78
2 - 047	114.02	1.78
2 - 048	120.37	1.78
2 - 049	126.72	1.78
2 - 050	133.07	1.78
2 - 102	1.24	2.62
2 - 103	2.06	2.62
2 - 104	2.84	2.62
2 - 105	3.63	2.62
2 - 106	4.42	2.62
2 - 107	5.23	2.62
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 108	6.02	2.62
2 - 109	7.59	2.62
2 - 110	9.19	2.62
2 - 111	10.77	2.62
2 - 112	12.37	2.62
2 - 113	13.94	2.62
2 - 114	15.54	2.62
2 - 115	17.12	2.62
2 - 116	18.72	2.62
2 - 117	20.3	2.62
2 - 118	21.89	2.62
2 - 119	23.47	2.62
2 -120	25.07	2.62
2 - 121	26.64	2.62
2 - 122	28.24	2.62
2 - 123	29.82	2.62
2 - 124	31.42	2.62
2 - 125	32.99	2.62
2 - 126	34.59	2.62
2 - 127	36.17	2.62
2 - 128	37.77	2.62
2 - 129	39.34	2.62
2 - 130	40.94	2.62
2 - 131	42.52	2.62
2 - 132	44.12	2.62
2 - 133	45.69	2.62
2 - 134	47.29	2.62
2 - 135	48.9	2.62
2 - 136	50.47	2.62
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 137	52.07	2.62
2 - 138	53.64	2.62
2 - 139	55.25	2.62
2 - 140	56.82	2.62
2 - 141	58.42	2.62
2 - 142	59.99	2.62
2 - 143	61.6	2.62
2 - 144	63.17	2.62
2 - 145	64.77	2.62
2 - 146	66.34	2.62
2 - 147	67.95	2.62
2 - 148	69.52	2.62
2 - 149	71.12	2.62
2 - 150	72.69	2.62
2 - 151	75.87	2.62
2 - 152	82.22	2.62
2 - 153	88.57	2.62
2 - 154	94.92	2.62
2 - 155	101.27	2.62
2 - 156	107.62	2.62
2 - 157	113.97	2.62
2 - 158	120.32	2.62
2 - 159	126.67	2.62
2 - 160	133.02	2.62
2 - 161	139.37	2.62
2 - 162	145.72	2.62
2 - 163	152.07	2.62
2 - 164	158.42	2.62
2 - 165	164.77	2.62
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 166	171.12	2.62
2 - 167	177.47	2.62
2 - 168	183.82	2.62
2 - 169	190.17	2.62
2 - 170	196.52	2.62
2 - 171	202.87	2.62
2 - 172	209.22	2.62
2 - 173	215.57	2.62
2 - 174	221.92	2.62
2 - 175	228.27	2.62
2 - 176	234.62	2.62
2 - 177	240.97	2.62
2 - 178	247.32	2.62
2 - 201	4.34	3.53
2 - 202	5.94	3.53
2 - 203	7.52	3.53
2 - 204	9.12	3.53
2 - 205	10.69	3.53
2 - 206	12.29	3.53
2 - 207	13.87	3.53
2 - 208	15.47	3.53
2 - 209	17.04	3.53
2 - 210	18.64	3.53
2 - 211	20.22	3.53
2 - 212	21.82	3.53
2 - 213	23.39	3.53
2 - 214	24.99	3.53
2 - 215	26.57	3.53
2 - 216	28.17	3.53
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 217	29.74	3.53
2 - 218	31.34	3.53
2 - 219	32.92	3.53
2 - 220	34.52	3.53
2 - 221	36.09	3.53
2 - 222	37.69	3.53
2 - 223	40.87	3.53
2 - 224	44.04	3.53
2 - 225	47.22	3.53
2 - 226	50.39	3.53
2 - 227	53.57	3.53
2 - 228	56.74	3.53
2 - 229	59.92	3.53
2 - 230	63.09	3.53
2 - 231	66.27	3.53
2 - 232	69.44	3.53
2 - 233	72.62	3.53
2 - 234	75.79	3.53
2 - 235	78.97	3.53
2 - 236	82.14	3.53
2 - 237	85.32	3.53
2 - 238	88.49	3.53
2 - 239	91.67	3.53
2 - 240	94.84	3.53
2 - 241	98.02	3.53
2 - 242	101.19	3.53
2 - 243	104.37	3.53
2 - 244	107.54	3.53
2 - 245	110.7	3.53
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 246	113.89	3.53
2 - 247	117.07	3.53
2 - 248	120.24	3.53
2 - 249	123.42	3.53
2 - 250	126.59	3.53
2 - 251	129.77	3.53
2 - 252	132.94	3.53
2 - 253	136.12	3.53
2 - 254	139.29	3.53
2 - 255	142.47	3.53
2 - 256	145.64	3.53
2 - 257	148.82	3.53
2 - 258	151.99	3.53
2 - 259	158.34	3.53
2 - 260	164.69	3.53
2 - 261	171.04	3.53
2 - 262	177.39	3.53
2 - 263	183.74	3.53
2 - 264	190.09	3.53
2 - 265	196.44	3.53
2 - 266	202.79	3.53
2 - 267	209.14	3.53
2 - 268	215.49	3.53
2 - 269	221.84	3.53
2 - 270	228.19	3.53
2 - 271	234.54	3.53
2 - 272	240.89	3.53
2 - 273	247.24	3.53
2 - 274	253.59	3.53
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 275	266.29	3.53
2 - 276	278.99	3.53
2 - 277	291.69	3.53
2 - 278	304.39	3.53
2 - 279	329.79	3.53
2 - 280	355.19	3.53
2 - 281	380.59	3.53
2 - 282	405.26	3.53
2 - 283	430.66	3.53
2 - 284	456.06	3.53
2 - 309	10.46	5.33
2 - 310	12.07	5.33
2 - 311	13.64	5.33
2 - 312	15.24	5.33
2 - 313	16.81	5.33
2 - 314	18.42	5.33
2 - 315	19.99	5.33
2 - 316	21.59	5.33
2 - 317	23.16	5.33
2 - 318	24.77	5.33
2 - 319	26.34	5.33
2 - 320	27.94	5.33
2 - 321	29.51	5.33
2 - 322	31.12	5.33
2 - 323	32.69	5.33
2 - 324	34.29	5.33
2 - 325	37.47	5.33
2 - 326	40.64	5.33
2 - 327	43.82	5.33
Size	Metric Size
	millimeters
	ID	Width
	Inside Diameter
2 - 283	430.66	3.53
2 - 284	456.06	3.53
2 - 309	10.46	5.33
2 - 310	12.07	5.33
2 - 311	13.64	5.33
2 - 312	15.24	5.33
2 - 313	16.81	5.33
2 - 314	18.42	5.33
2 - 315	19.99	5.33
2 - 316	21.59	5.33
2 - 317	23.16	5.33
2 - 318	24.77	5.33
2 - 319	26.34	5.33
2 - 320	27.94	5.33
2 - 321	29.51	5.33
2 - 322	31.12	5.33
2 - 323	32.69	5.33
2 - 324	34.29	5.33
2 - 325	37.47	5.33
2 - 326	40.64	5.33
2 - 327	43.82	5.33
2 - 328	46.99	5.33
2 - 329	50.17	5.33
2 - 330	53.34	5.33
2 - 331	56.52	5.33
2 - 332	59.69	5.33
2 - 333	62.87	5.33
2 - 334	66.04	5.33

Buna O-Rings

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FKM O-Rings

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EPR O-Rings

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Silicone O-Rings

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Special Materials O-Rings

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Metric O-Rings Supplier

We have experience and expertise in all industries, including,

Metric O-Rings Colors

Metric O Ring Sizes

Buna O-Rings

FKM O-Rings

EPR O-Rings

Silicone O-Rings

Special Materials O-Rings

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