Oil-Resistant Buna-N O-Ring
1/16 Fractional Width, Dash Number 012









System of Measurement | Inch |
Fractional | |
Width | 1/16 |
ID | 3/8 |
OD | 1/2 |
Width | 0.07" |
Dash Number | 012 |
ID | 0.364" |
OD | 0.504" |
Hardness | Durometer 70A (Medium) |
Specifications Met | ASTM D2000, SAE AS568, SAE J200 |
Temperature Range | -30° F to 215° F |
Color | Black |
Cross Section Shape | Round |
For Use With | Animal Oil |
Performance | Oil Resistant |
Country of Origin | United States, China, Vietnam |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | EAR99 |
REACH Compliance | REACH (EC 1907/2006) (02/04/2026, 253 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 401693.0000 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
Made of Buna-N, these O-rings resist grease, hydraulic oil, and motor oil—plus mild chemicals and water. However, Buna-N is not for use with brake fluid. These O-rings are commonly used to create multidirectional seals between two parts in power transmission assemblies, hydraulic cylinders, and pneumatic cylinders. They resist compression and tearing to keep their shape over time. All have shelf life, a cure date, and a traceable lot number printed on the package.
The information in this 3-D model is provided for reference only.

























