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70 Durometer Buna-N O-Ring, Inch OD, 2-1/16 Inch ID, 0.10 Inch Width

Description & Features

Rated at 70 durometer, this Buna-N (nitrile) o-ring is well-suited for hydraulic and fluid power sealing applications where resistance to petroleum-based oils and fluids is required. The material handles a broad service temperature range of -40°F to 240°F, making it appropriate for a wide variety of industrial sealing environments.

The 70 Durometer Buna-N O-Ring carries a nominal 2-1/4 inch OD and 2-1/16 inch ID with a 3/32 inch nominal width. Actual measured dimensions are 2.256 inches OD, 2.05 inches ID, and 0.103 inches in width. It corresponds to dash size -137 and is supplied by Hercules Sealing Products under catalog number C1CD94. Sold in packages of 20.

SKU: A-137

Supplier Part Number (MPN): 568-137

Specifications

Actual I.D. 2.05	Actual O.D. 2.26	Actual Width 0.103 in	Dash Size -137	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Nominal I.D. (in) 2-1/16	Nominal O.D. 2-1/4	Nominal Width 3/32	Package Qty. 20	Supplier Part Number 568-137	Product Weight 0.01 lbs

Similar Products

Model Number	Dash Size	Nominal I.D. (in)	Nominal O.D.	Nominal Width	Actual I.D.	Actual O.D.	Actual Width	Package Qty.
A-008 70 Durometer Buna-N O-Ring	-008	3/16	5/16	1/16	0.176	0.316	0.07 in	50
A-011 70 Durometer Buna-N O-Ring	-011	5/16	7/16	1/16	0.301	0.441	0.07 in	50
A-013 70 Durometer Buna-N O-Ring	-013	7/16	9/16	1/16	0.426	0.566	0.07 in	50
A-017 70 Durometer Buna-N O-Ring	-017	11/16	13/16	1/16	0.676	0.816	0.07 in	50
A-020 70 Durometer Buna-N O-Ring	-020	7/8	1	1/16	0.864	1.004	0.07 in	50
A-022 70 Durometer Buna-N O-Ring	-022	1	1-1/8	1/16	0.989	1.129	0.07 in	50
A-024 70 Durometer Buna-N O-Ring	-024	1-1/8	1-1/4	1/16	1.114	1.254	0.07 in	50
A-029 70 Durometer Buna-N O-Ring	-029	1-1/2	1-5/8	1/16	1.489	1.629	0.07 in	20
A-037 70 Durometer Buna-N O-Ring	-037	2-1/2	2-5/8	1/16	2.489	2.629	0.07 in	20
A-038 70 Durometer Buna-N O-Ring	-038	2-5/8	2-3/4	1/16	2.614	2.754	0.07 in	10
A-043 70 Durometer Buna-N O-Ring	-043	3-1/2	3-5/8	1/16	3.489	3.629	0.07 in	10
A-045 70 Durometer Buna-N O-Ring	-045	4	4-1/8	1/16	3.989	4.129	0.07 in	10
A-112 70 Durometer Buna-N O-Ring	-112	1/2	11/16	3/32	0.487	0.693	0.103 in	50
A-118 70 Durometer Buna-N O-Ring	-118	7/8	1-1/16	3/32	0.862	1.068	0.103 in	50
A-121 70 Durometer Buna-N O-Ring	-121	1-1/16	1-1/4	3/32	1.049	1.255	0.103 in	50
A-131-ORING 70 Durometer Buna-N O-Ring	-131	1-11/16	1-7/8	3/32	1.674	1.88	0.103 in	20
A-136 70 Durometer Buna-N O-Ring	-136	2	2-3/16	3/32	1.987	2.193	0.103 in	20
A-140 70 Durometer Buna-N O-Ring	-140	2-1/4	2-7/16	3/32	2.237	2.443	0.103 in	20
A-146 70 Durometer Buna-N O-Ring	-146	2-5/8	2-13/16	3/32	2.612	2.818	0.103 in	20
A-152 70 Durometer Buna-N O-Ring	-152	3-1/4	3-7/16	3/32	3.237	3.443	0.103 in	10
A-159 70 Durometer Buna-N O-Ring	-159	5	5-3/16	3/32	4.987	5.193	0.103 in	4
A-169 70 Durometer Buna-N O-Ring	-169	7-1/2	7-11/16	3/32	7.487	7.693	0.103 in	2
A-214 70 Durometer Buna-N O-Ring	-214	1	1-1/4	1/8	0.984	1.262	0.139 in	20
A-218 70 Durometer Buna-N O-Ring	-218	1-1/4	1-1/2	1/8	1.234	1.512	0.139 in	20
A-221 70 Durometer Buna-N O-Ring	-221	1-7/16	1-11/16	1/8	1.421	1.699	0.139 in	20
A-231 70 Durometer Buna-N O-Ring	-231	2-5/8	2-7/8	1/8	2.609	2.887	0.139 in	10
A-232 70 Durometer Buna-N O-Ring	-232	2-3/4	3	1/8	2.734	3.012	0.139 in	10
A-233 70 Durometer Buna-N O-Ring	-233	2-7/8	3-1/8	1/8	2.859	3.137	0.139 in	10
A-234 70 Durometer Buna-N O-Ring	-234	3	3-1/4	1/8	2.984	3.262	0.139 in	10
A-236 70 Durometer Buna-N O-Ring	-236	3-1/4	3-1/2	1/8	3.234	3.512	0.139 in	10
A-238-ORING 70 Durometer Buna-N O-Ring	-238	3-1/2	3-3/4	1/8	3.484	3.762	0.139 in	10
A-242-ORING 70 Durometer Buna-N O-Ring	-242	4	4-1/4	1/8	3.984	4.262	0.139 in	10
A-244 70 Durometer Buna-N O-Ring	-244	4-1/4	4-1/2	1/8	4.234	4.512	0.139 in	10
A-248 70 Durometer Buna-N O-Ring	-248	4-3/4	5	1/8	4.734	5.012	0.139 in	4
A-251 70 Durometer Buna-N O-Ring	-251	5-1/8	5-3/8	1/8	5.109	5.387	0.139 in	4
A-252 70 Durometer Buna-N O-Ring	-252	5-1/4	5-1/2	1/8	5.234	5.512	0.139 in	4
A-256 70 Durometer Buna-N O-Ring	-256	5-3/4	6	1/8	5.734	6.012	0.139 in	4
A-329 70 Durometer Buna-N O-Ring	-329	2	2-3/8	3/16	1.975	2.395	0.21 in	20
A-334 70 Durometer Buna-N O-Ring	-334	2-5/8	3	3/16	2.6	3.02	0.21 in	20
A-338 70 Durometer Buna-N O-Ring	-338	3-1/8	3-1/2	3/16	3.1	3.52	0.21 in	10
A-342 70 Durometer Buna-N O-Ring	-342	3-5/8	4	3/16	3.6	4.02	0.21 in	4
A-346 70 Durometer Buna-N O-Ring	-346	4-1/8	4-1/2	3/16	4.1	4.52	0.21 in	4
568-450 70 Durometer Buna-N O-Ring	-450	10-1/2	11	1/4	10.475	11.025	0.275 in	1
A-003 70 Durometer Buna-N O-Ring	-003	1/16	3/16	1/16	0.056	0.176	0.06 in	50
A-005 70 Durometer Buna-N O-Ring	-005	3/32	7/32	1/16	0.101	0.241	0.07 in	50
A-006 70 Durometer Buna-N O-Ring	-006	1/8	1/4	1/16	0.114	0.254	0.07 in	50
A-007 70 Durometer Buna-N O-Ring	-007	5/32	9/32	1/16	0.145	0.285	0.07 in	50
A-009 70 Durometer Buna-N O-Ring	-009	7/32	11/32	1/16	0.208	0.348	0.07 in	50
A-010 70 Durometer Buna-N O-Ring	-010	1/4	3/8	1/16	0.239	0.379	0.07 in	50
A-012 70 Durometer Buna-N O-Ring	-012	3/8	1/2	1/16	0.364	0.504	0.07 in	50
A-014 70 Durometer Buna-N O-Ring	-014	1/2	5/8	1/16	0.489	0.629	0.07 in	50
A-015 70 Durometer Buna-N O-Ring	-015	9/16	11/16	1/16	0.551	0.691	0.07 in	50
A-016 70 Durometer Buna-N O-Ring	-016	5/8	3/4	1/16	0.614	0.754	0.07 in	50
A-019 70 Durometer Buna-N O-Ring	-019	13/16	15/16	1/16	0.801	0.941	0.07 in	50
A-021 70 Durometer Buna-N O-Ring	-021	15/16	1-1/16	1/16	0.926	1.066	0.07 in	50
A-023 70 Durometer Buna-N O-Ring	-023	1-1/16	1-3/16	1/16	1.051	1.191	0.07 in	50
A-025 70 Durometer Buna-N O-Ring	-025	1-3/16	1-5/16	1/16	1.176	1.316	0.07 in	50
A-026 70 Durometer Buna-N O-Ring	-026	1-1/4	1-3/8	1/16	1.239	1.379	0.07 in	50
A-027 70 Durometer Buna-N O-Ring	-027	1-5/16	1-7/16	1/16	1.301	1.441	0.07 in	50
A-028 70 Durometer Buna-N O-Ring	-028	1-3/8	1-1/2	1/16	1.364	1.504	0.07 in	20
A-030 70 Durometer Buna-N O-Ring	-030	1-5/8	1-3/4	1/16	1.614	1.754	0.07 in	20
A-031 70 Durometer Buna-N O-Ring	-031	1-3/4	1-7/8	1/16	1.739	1.879	0.07 in	20
A-032 70 Durometer Buna-N O-Ring	-032	1-7/8	2	1/16	1.864	2.004	0.07 in	20
A-033 70 Durometer Buna-N O-Ring	-033	2	2-1/8	1/16	1.989	2.129	0.07 in	20
A-034 70 Durometer Buna-N O-Ring	-034	2-1/8	2-1/4	1/16	2.114	2.254	0.07 in	20
A-035 70 Durometer Buna-N O-Ring	-035	2-1/4	2-3/8	1/16	2.239	2.379	0.07 in	20
A-036 70 Durometer Buna-N O-Ring	-036	2-3/8	2-1/2	1/16	2.364	2.504	0.07 in	20
A-039 70 Durometer Buna-N O-Ring	-039	2-3/4	2-7/8	1/16	2.739	2.879	0.07 in	10
A-040 70 Durometer Buna-N O-Ring	-040	2-7/8	3	1/16	2.864	3.004	0.07 in	10
A-041 70 Durometer Buna-N O-Ring	-041	3	3-1/8	1/16	2.989	3.129	0.07 in	10
A-042 70 Durometer Buna-N O-Ring	-042	3-1/4	3-3/8	1/16	3.239	3.379	0.07 in	10
A-044 70 Durometer Buna-N O-Ring	-044	3-3/4	3-7/8	1/16	3.739	3.879	0.07 in	10
A-048 70 Durometer Buna-N O-Ring	-048	4-3/4	4-7/8	1/16	4.739	4.879	0.07 in	4
A-049 70 Durometer Buna-N O-Ring	-049	5	5-1/8	1/16	4.989	5.129	0.07 in	4
A-106 70 Durometer Buna-N O-Ring	-106	3/16	3/8	3/32	0.174	0.38	0.103 in	50
A-107 70 Durometer Buna-N O-Ring	-107	7/32	13/32	3/32	0.206	0.412	0.103 in	50
A-108 70 Durometer Buna-N O-Ring	-108	1/4	7/16	3/32	0.237	0.443	0.103 in	50
A-109 70 Durometer Buna-N O-Ring	-109	5/16	1/2	3/32	0.299	0.505	0.103 in	50
A-110-ORING 70 Durometer Buna-N O-Ring	-110	3/8	9/16	3/32	0.362	0.568	0.103 in	50
A-111 70 Durometer Buna-N O-Ring	-111	7/16	5/8	3/32	0.424	0.63	0.103 in	50
A-114 70 Durometer Buna-N O-Ring	-114	5/8	13/16	3/32	0.612	0.818	0.103 in	50
A-115 70 Durometer Buna-N O-Ring	-115	11/16	7/8	3/32	0.674	0.88	0.103 in	50
A-116 70 Durometer Buna-N O-Ring	-116	3/4	15/16	3/32	0.737	0.943	0.103 in	50
A-117 70 Durometer Buna-N O-Ring	-117	13/16	1	3/32	0.799	1.005	0.103 in	50
A-119 70 Durometer Buna-N O-Ring	-119	15/16	1-1/8	3/32	0.924	1.13	0.103 in	50
A-120 70 Durometer Buna-N O-Ring	-120	1	1-3/16	3/32	0.987	1.193	0.103 in	50
A-122 70 Durometer Buna-N O-Ring	-122	1-1/8	1-5/16	3/32	1.112	1.318	0.103 in	20
A-123 70 Durometer Buna-N O-Ring	-123	1-3/16	1-3/8	3/32	1.174	1.38	0.103 in	20
A-124 70 Durometer Buna-N O-Ring	-124	1-1/4	1-7/16	3/32	1.237	1.443	0.103 in	20
A-125 70 Durometer Buna-N O-Ring	-125	1-5/16	1-1/2	3/32	1.299	1.505	0.103 in	20
A-126 70 Durometer Buna-N O-Ring	-126	1-3/8	1-9/16	3/32	1.362	1.568	0.103 in	20
A-127 70 Durometer Buna-N O-Ring	-127	1-7/16	1-5/8	3/32	1.424	1.63	0.103 in	20
A-128 70 Durometer Buna-N O-Ring	-128	1-1/2	1-11/16	3/32	1.487	1.693	0.103 in	20
A-129-ORING 70 Durometer Buna-N O-Ring	-129	1-9/16	1-3/4	3/32	1.549	1.755	0.103 in	20
A-130 70 Durometer Buna-N O-Ring	-130	1-5/8	1-13/16	3/32	1.612	1.818	0.103 in	20
A-132-ORING 70 Durometer Buna-N O-Ring	-132	1-3/4	1-15/16	3/32	1.737	1.943	0.103 in	20
A-133 70 Durometer Buna-N O-Ring	-133	1-13/16	2	3/32	1.799	2.005	0.103 in	20
A-134 70 Durometer Buna-N O-Ring	-134	1-7/8	2-1/16	3/32	1.862	2.068	0.103 in	20
A-135 70 Durometer Buna-N O-Ring	-135	1-15/16	2-1/8	3/32	1.925	2.131	0.103 in	20
A-138 70 Durometer Buna-N O-Ring	-138	2-1/8	2-5/16	3/32	2.112	2.318	0.103 in	20
A-139 70 Durometer Buna-N O-Ring	-139	2-3/16	2-3/8	3/32	2.175	2.381	0.103 in	20
A-141-ORING 70 Durometer Buna-N O-Ring	-141	2-5/16	2-1/2	3/32	2.3	2.506	0.103 in	20
A-142 70 Durometer Buna-N O-Ring	-142	2-3/8	2-9/16	3/32	2.362	2.568	0.103 in	20
A-143 70 Durometer Buna-N O-Ring	-143	2-7/16	2-5/8	3/32	2.425	2.631	0.103 in	20
A-144 70 Durometer Buna-N O-Ring	-144	2-1/2	2-11/16	3/32	2.487	2.693	0.103 in	20
A-145 70 Durometer Buna-N O-Ring	-145	2-9/16	2-3/4	3/32	2.55	2.756	0.103 in	20
A-147 70 Durometer Buna-N O-Ring	-147	2-11/16	2-7/8	3/32	2.675	2.881	0.103 in	20
A-148 70 Durometer Buna-N O-Ring	-148	2-3/4	2-15/16	3/32	2.737	2.943	0.103 in	10
A-149 70 Durometer Buna-N O-Ring	-149	2-13/16	3	3/32	2.8	3.006	0.103 in	10
A-150 70 Durometer Buna-N O-Ring	-150	2-7/8	3-1/16	3/32	2.862	3.068	0.103 in	10
A-151 70 Durometer Buna-N O-Ring	-151	3	3-3/16	3/32	2.987	3.193	0.103 in	10
A-153 70 Durometer Buna-N O-Ring	-153	3-1/2	3-11/16	3/32	3.487	3.693	0.103 in	10
A-154 70 Durometer Buna-N O-Ring	-154	3-3/4	3-15/16	3/32	3.737	3.943	0.103 in	10
A-155 70 Durometer Buna-N O-Ring	-155	4	4-3/16	3/32	3.987	4.193	0.103 in	10
A-156 70 Durometer Buna-N O-Ring	-156	4-1/4	4-7/16	3/32	4.237	4.443	0.103 in	10
A-157 70 Durometer Buna-N O-Ring	-157	4-1/2	4-11/16	3/32	4.487	4.693	0.103 in	4
A-158 70 Durometer Buna-N O-Ring	-158	4-3/4	4-15/16	3/32	4.737	4.943	0.103 in	4
A-160 70 Durometer Buna-N O-Ring	-160	5-1/4	5-7/16	3/32	5.237	5.443	0.103 in	4
A-161 70 Durometer Buna-N O-Ring	-161	5-1/2	5-11/16	3/32	5.487	5.693	0.103 in	4
A-163 70 Durometer Buna-N O-Ring	-163	6	6-3/16	3/32	5.987	6.193	0.103 in	2
A-164 70 Durometer Buna-N O-Ring	-164	6-1/4	6-7/16	3/32	6.237	6.443	0.103 in	2
A-170 70 Durometer Buna-N O-Ring	-170	7-3/4	7-15/16	3/32	7.737	7.943	0.103 in	2
A-172 70 Durometer Buna-N O-Ring	-172	8-1/4	8-7/16	3/32	8.237	8.443	0.103 in	2
A-202 70 Durometer Buna-N O-Ring	-202	1/4	1/2	1/8	0.234	0.512	0.139 in	50
A-203 70 Durometer Buna-N O-Ring	-203	5/16	9/16	1/8	0.296	0.574	0.139 in	50
A-204 70 Durometer Buna-N O-Ring	-204	3/8	5/8	1/8	0.359	0.637	0.139 in	50
A-205 70 Durometer Buna-N O-Ring	-205	7/16	11/16	1/8	0.421	0.699	0.139 in	50
A-206 70 Durometer Buna-N O-Ring	-206	1/2	3/4	1/8	0.484	0.762	0.139 in	50
A-208 70 Durometer Buna-N O-Ring	-208	5/8	7/8	1/8	0.609	0.887	0.139 in	20
A-209 70 Durometer Buna-N O-Ring	-209	11/16	15/16	1/8	0.671	0.949	0.139 in	20
A-210-ORING 70 Durometer Buna-N O-Ring	-210	3/4	1	1/8	0.734	1.012	0.139 in	20
A-213 70 Durometer Buna-N O-Ring	-213	15/16	1-3/16	1/8	0.921	1.199	0.139 in	20
A-215 70 Durometer Buna-N O-Ring	-215	1-1/16	1-5/16	1/8	1.046	1.324	0.139 in	20
A-216 70 Durometer Buna-N O-Ring	-216	1-1/8	1-3/8	1/8	1.109	1.387	0.139 in	20
A-217 70 Durometer Buna-N O-Ring	-217	1-3/16	1-7/16	1/8	1.171	1.449	0.139 in	20
A-219 70 Durometer Buna-N O-Ring	-219	1-5/16	1-9/16	1/8	1.296	1.574	0.139 in	20
A-220 70 Durometer Buna-N O-Ring	-220	1-3/8	1-5/8	1/8	1.359	1.637	0.139 in	20
A-222 70 Durometer Buna-N O-Ring	-222	1-1/2	1-3/4	1/8	1.484	1.762	0.139 in	20
A-223 70 Durometer Buna-N O-Ring	-223	1-5/8	1-7/8	1/8	1.609	1.887	0.139 in	20
A-224 70 Durometer Buna-N O-Ring	-224	1-3/4	2	1/8	1.734	2.012	0.139 in	20
A-225 70 Durometer Buna-N O-Ring	-225	1-7/8	2-1/8	1/8	1.859	2.137	0.139 in	20
A-226 70 Durometer Buna-N O-Ring	-226	2	2-1/4	1/8	1.984	2.262	0.139 in	20
A-227 70 Durometer Buna-N O-Ring	-227	2-1/8	2-3/8	1/8	2.109	2.387	0.139 in	20
A-229 70 Durometer Buna-N O-Ring	-229	2-3/8	2-5/8	1/8	2.359	2.637	0.139 in	20
A-230 70 Durometer Buna-N O-Ring	-230	2-1/2	2-3/4	1/8	2.484	2.762	0.139 in	10
A-234-VITON 70 Durometer Buna-N O-Ring	-234	3	3-1/4	1/8	2.984	3.262	0.139 in	10
A-235 70 Durometer Buna-N O-Ring	-235	3-1/8	3-3/8	1/8	3.109	3.387	0.139 in	10
A-237 70 Durometer Buna-N O-Ring	-237	3-3/8	3-5/8	1/8	3.359	3.637	0.139 in	10
A-239-ORING 70 Durometer Buna-N O-Ring	-239	3-5/8	3-7/8	1/8	3.609	3.887	0.139 in	10
A-240-ORING 70 Durometer Buna-N O-Ring	-240	3-3/4	4	1/8	3.734	4.012	0.139 in	10
A-241-ORING 70 Durometer Buna-N O-Ring	-241	3-7/8	4-1/8	1/8	3.859	4.137	0.139 in	10
A-243 70 Durometer Buna-N O-Ring	-243	4-1/8	4-3/8	1/8	4.109	4.387	0.139 in	10
A-245 70 Durometer Buna-N O-Ring	-245	4-3/8	4-5/8	1/8	4.359	4.637	0.139 in	4
A-246 70 Durometer Buna-N O-Ring	-246	4-1/2	4-3/4	1/8	4.484	4.762	0.139 in	4
A-247 70 Durometer Buna-N O-Ring	-247	4-5/8	4-7/8	1/8	4.609	4.887	0.139 in	4
A-249 70 Durometer Buna-N O-Ring	-249	4-7/8	5-1/8	1/8	4.859	5.137	0.139 in	4
A-250 70 Durometer Buna-N O-Ring	-250	5	5-1/4	1/8	4.984	5.262	0.139 in	4
A-253 70 Durometer Buna-N O-Ring	-253	5-3/8	5-5/8	1/8	5.359	5.637	0.139 in	4
A-254 70 Durometer Buna-N O-Ring	-254	5-1/2	5-3/4	1/8	5.484	5.762	0.139 in	4
A-255 70 Durometer Buna-N O-Ring	-255	5-5/8	5-7/8	1/8	5.609	5.887	0.139 in	4
A-257 70 Durometer Buna-N O-Ring	-257	5-7/8	6-1/8	1/8	5.859	6.137	0.139 in	2
A-258-ORING 70 Durometer Buna-N O-Ring	-258	6	6-1/4	1/8	5.984	6.262	0.139 in	2
A-259 70 Durometer Buna-N O-Ring	-259	6-1/4	6-1/2	1/8	6.234	6.512	0.139 in	2
A-260 70 Durometer Buna-N O-Ring	-260	6-1/2	6-3/4	1/8	6.484	6.762	0.139 in	2
A-261 70 Durometer Buna-N O-Ring	-261	6-3/4	7	1/8	6.734	7.012	0.139 in	2
A-262 70 Durometer Buna-N O-Ring	-262	7	7-1/4	1/8	6.984	7.262	0.139 in	2
A-263 70 Durometer Buna-N O-Ring	-263	7-1/4	7-1/2	1/8	7.234	7.512	0.139 in	2
A-264 70 Durometer Buna-N O-Ring	-264	7-1/2	7-3/4	1/8	7.484	7.762	0.139 in	2
A-265 70 Durometer Buna-N O-Ring	-265	7-3/4	8	1/8	7.734	8.012	0.139 in	2
A-266 70 Durometer Buna-N O-Ring	-266	8	8-1/4	1/8	7.984	8.262	0.139 in	2
A-267 70 Durometer Buna-N O-Ring	-267	8-1/4	8-1/2	1/8	8.234	8.512	0.139 in	2
A-268 70 Durometer Buna-N O-Ring	-268	8-1/2	8-3/4	1/8	8.484	8.762	0.139 in	2
A-269 70 Durometer Buna-N O-Ring	-269	8-3/4	9	1/8	8.734	9.012	0.139 in	2
A-274 70 Durometer Buna-N O-Ring	-274	10	10-1/4	1/8	9.984	10.262	0.139 in	2
A-275 70 Durometer Buna-N O-Ring	-275	10-1/2	10-3/4	1/8	10.484	10.762	0.139 in	2
A-276 70 Durometer Buna-N O-Ring	-276	11	11-1/4	1/8	10.984	11.262	0.139 in	1
A-277 70 Durometer Buna-N O-Ring	-277	11-1/2	11-3/4	1/8	11.484	11.762	0.139 in	1
A-278 70 Durometer Buna-N O-Ring	-278	12	12-1/4	1/8	11.984	12.262	0.139 in	1
A-282 70 Durometer Buna-N O-Ring	-282	16	16-1/4	1/8	15.955	16.233	0.139 in	1
A-311 70 Durometer Buna-N O-Ring	-311	9/16	15/16	3/16	0.537	0.957	0.21 in	50
A-312 70 Durometer Buna-N O-Ring	-312	5/8	1	3/16	0.6	1.02	0.21 in	50
A-313 70 Durometer Buna-N O-Ring	-313	11/16	1-1/16	3/16	0.662	1.082	0.21 in	50
A-314 70 Durometer Buna-N O-Ring	-314	3/4	1-1/8	3/16	0.725	1.145	0.21 in	50
A-315 70 Durometer Buna-N O-Ring	-315	13/16	1-3/16	3/16	0.787	1.207	0.21 in	20
A-316 70 Durometer Buna-N O-Ring	-316	7/8	1-1/4	3/16	0.85	1.27	0.21 in	50
A-318 70 Durometer Buna-N O-Ring	-318	1	1-3/8	3/16	0.975	1.395	0.21 in	20
A-319 70 Durometer Buna-N O-Ring	-319	1-1/16	1-7/16	3/16	1.037	1.457	0.21 in	50
A-320 70 Durometer Buna-N O-Ring	-320	1-1/8	1-1/2	3/16	1.1	1.52	0.21 in	20
A-321 70 Durometer Buna-N O-Ring	-321	1-3/16	1-9/16	3/16	1.162	1.582	0.21 in	20
A-322 70 Durometer Buna-N O-Ring	-322	1-1/4	1-5/8	3/16	1.225	1.645	0.21 in	20
A-323 70 Durometer Buna-N O-Ring	-323	1-5/16	1-11/16	3/16	1.287	1.707	0.21 in	10
A-324 70 Durometer Buna-N O-Ring	-324	1-3/8	1-3/4	3/16	1.35	1.77	0.21 in	20
A-325 70 Durometer Buna-N O-Ring	-325	1-1/2	1-7/8	3/16	1.475	1.895	0.21 in	20
A-326 70 Durometer Buna-N O-Ring	-326	1-5/8	2	3/16	1.6	2.02	0.21 in	20
A-327 70 Durometer Buna-N O-Ring	-327	1-3/4	2-1/8	3/16	1.725	2.145	0.21 in	20
A-328 70 Durometer Buna-N O-Ring	-328	1-7/8	2-1/4	3/16	1.85	2.27	0.21 in	20
A-331 70 Durometer Buna-N O-Ring	-331	2-1/4	2-5/8	3/16	2.225	2.645	0.21 in	20
A-332 70 Durometer Buna-N O-Ring	-332	2-3/8	2-3/4	3/16	2.35	2.77	0.21 in	20
A-333 70 Durometer Buna-N O-Ring	-333	2-1/2	2-7/8	3/16	2.475	2.895	0.21 in	20
A-335 70 Durometer Buna-N O-Ring	-335	2-3/4	3-1/8	3/16	2.725	3.145	0.21 in	10
A-336 70 Durometer Buna-N O-Ring	-336	2-7/8	3-1/4	3/16	2.85	3.27	0.21 in	10
A-337 70 Durometer Buna-N O-Ring	-337	3	3-3/8	3/16	2.975	3.395	0.21 in	10
A-339 70 Durometer Buna-N O-Ring	-339	3-1/4	3-5/8	3/16	3.225	3.645	0.21 in	10
A-340 70 Durometer Buna-N O-Ring	-340	3-3/8	3-3/4	3/16	3.35	3.77	0.21 in	10
A-343 70 Durometer Buna-N O-Ring	-343	3-3/4	4-1/8	3/16	3.725	4.145	0.21 in	4
A-344 70 Durometer Buna-N O-Ring	-344	3-7/8	4-1/4	3/16	3.85	4.27	0.21 in	4
A-347 70 Durometer Buna-N O-Ring	-347	4-1/4	4-5/8	3/16	4.225	4.645	0.21 in	4
A-348 70 Durometer Buna-N O-Ring	-348	4-3/8	4-3/4	3/16	4.35	4.77	0.21 in	4
A-349 70 Durometer Buna-N O-Ring	-349	4-1/2	4-7/8	3/16	4.475	4.895	0.21 in	4
A-350 70 Durometer Buna-N O-Ring	-350	4-5/8	5	3/16	4.6	5.02	0.21 in	4
A-351 70 Durometer Buna-N O-Ring	-351	4-3/4	5-1/8	3/16	4.725	5.145	0.21 in	4
A-352 70 Durometer Buna-N O-Ring	-352	4-7/8	5-1/4	3/16	4.85	5.27	0.21 in	4
A-353 70 Durometer Buna-N O-Ring	-353	5	5-3/8	3/16	4.975	5.395	0.21 in	4
A-355 70 Durometer Buna-N O-Ring	-355	5-1/4	5-5/8	3/16	5.225	5.645	0.21 in	4
A-356 70 Durometer Buna-N O-Ring	-356	5-3/8	5-3/4	3/16	5.35	5.77	0.21 in	4
A-358 70 Durometer Buna-N O-Ring	-358	5-5/8	6	3/16	5.6	6.02	0.21 in	4
A-360 70 Durometer Buna-N O-Ring	-360	5-7/8	6-1/4	3/16	5.85	6.27	0.21 in	4
A-362 70 Durometer Buna-N O-Ring	-362	6-1/4	6-5/8	3/16	6.225	6.645	0.21 in	4
A-363 70 Durometer Buna-N O-Ring	-363	6-1/2	6-7/8	3/16	6.475	6.895	0.21 in	4
A-364 70 Durometer Buna-N O-Ring	-364	6-3/4	7-1/8	3/16	6.725	7.145	0.21 in	4
A-366 70 Durometer Buna-N O-Ring	-366	7-1/4	7-5/8	3/16	7.225	7.645	0.21 in	2
A-367 70 Durometer Buna-N O-Ring	-367	7-1/2	7-7/8	3/16	7.475	7.895	0.21 in	2
A-378 70 Durometer Buna-N O-Ring	-378	10-1/2	10-7/8	3/16	10.475	10.895	0.21 in	1
A-426 70 Durometer Buna-N O-Ring	-426	4-5/8	5-1/8	1/4	4.6	5.15	0.275 in	4
A-427 70 Durometer Buna-N O-Ring	-427	4-3/4	5-1/4	1/4	4.725	5.275	0.275 in	4
A-428 70 Durometer Buna-N O-Ring	-428	4-7/8	5-3/8	1/4	4.85	5.4	0.275 in	4
A-429 70 Durometer Buna-N O-Ring	-429	5	5-1/2	1/4	4.975	5.525	0.275 in	4
A-432 70 Durometer Buna-N O-Ring	-432	5-3/8	5-7/8	1/4	5.35	5.9	0.275 in	4
A-434 70 Durometer Buna-N O-Ring	-434	5-5/8	6-1/8	1/4	5.6	6.15	0.275 in	4
A-435 70 Durometer Buna-N O-Ring	-435	5-3/4	6-1/4	1/4	5.725	6.275	0.275 in	4
A-436 70 Durometer Buna-N O-Ring	-436	5-7/8	6-3/8	1/4	5.85	6.4	0.275 in	4
A-437 70 Durometer Buna-N O-Ring	-437	6	6-1/2	1/4	5.975	6.525	0.275 in	2
A-438 70 Durometer Buna-N O-Ring	-438	6-1/4	6-3/4	1/4	6.225	6.775	0.275 in	2
A-439 70 Durometer Buna-N O-Ring	-439	6-1/2	7	1/4	6.475	7.025	0.275 in	2
A-441 70 Durometer Buna-N O-Ring	-441	7	7-1/2	1/4	6.975	7.525	0.275 in	2
A-443 70 Durometer Buna-N O-Ring	-443	7-1/2	8	1/4	7.475	8.025	0.275 in	2
A-446 70 Durometer Buna-N O-Ring	-446	8-1/2	9	1/4	8.475	9.025	0.275 in	2
A-448 70 Durometer Buna-N O-Ring	-448	9-1/2	10	1/4	9.475	10.025	0.275 in	2
A-345 70 Durometer Buna-N O-Ring	-345	4	4-3/8	3/16	3.975	4.395	0.21 in	4
A-113 70 Durometer Buna-N O-Ring	-113	9/16	3/4	3/32	0.549	0.755	0.103 in	50
A-137 70 Durometer Buna-N O-Ring	-137	2-1/16	2-1/4	3/32	2.05	2.256	0.103 in	20
A-207 70 Durometer Buna-N O-Ring	-207	9/16	13/16	1/8	0.546	0.824	0.139 in	50
A-211 70 Durometer Buna-N O-Ring	-211	13/16	1-1/16	1/8	0.796	1.074	0.139 in	20
A-212 70 Durometer Buna-N O-Ring	-212	7/8	1-1/8	1/8	0.859	1.137	0.139 in	20
A-228 70 Durometer Buna-N O-Ring	-228	2-1/4	2-1/2	1/8	2.234	2.512	0.139 in	20
A-330 70 Durometer Buna-N O-Ring	-330	2-1/8	2-1/2	3/16	2.1	2.52	0.21 in	20
A-341 70 Durometer Buna-N O-Ring	-341	3-1/2	3-7/8	3/16	3.475	3.895	0.21 in	4
A-354 70 Durometer Buna-N O-Ring	-354	5-1/8	5-1/2	3/16	5.1	5.52	0.21 in	4
A-357 70 Durometer Buna-N O-Ring	-357	5-1/2	5-7/8	3/16	5.475	5.895	0.21 in	4
A-425 70 Durometer Buna-N O-Ring	-425	4-1/2	5	1/4	4.475	5.025	0.275 in	4
A-433 70 Durometer Buna-N O-Ring	-433	5-1/2	6	1/4	5.475	6.025	0.275 in	4
A-440 70 Durometer Buna-N O-Ring	-440	6-3/4	7-1/4	1/4	6.725	7.275	0.275 in	2

Product Questions & Answers (1)

Question by: Randy R on Sep 6, 2025, 7:20 PM

Hey, reckon this o-ring would work alright with some regular hydraulic oil?

Answer by: Customer Support on Sep 8, 2025, 6:22 AM

Buna-N o-rings are well-suited for petroleum-based oils and fluids, making them a good choice for hydraulic systems using standard hydraulic oil. Just be sure the temperature stays between -40°F and 240°F.