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About O-Rings
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Ultra-Chemical-Resistant Kalrez 4079 O-Rings for
Tube Fittings with Straight-Thread Connection
Also known as Boss O-rings, these Kalrez 4079 O-rings are for use in tube fittings with a straight-thread connection. They’re inherently softer and more compressible than PTFE O-rings with comparable chemical resistance. Use them with acetone, methyl ethyl ketone (MEK), potassium hydroxide, and most acids. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.
For technical drawings and 3-D models, click on a part number.
| Dash Number | For Tube OD | Wd. | ID | OD | Hardness | Specifications Met | Temperature Range, °F | Color | Each | |
| 902 | 1/8" | 0.064" | 0.239" | 0.367" | Durometer 75A (Medium) | ASTM D2000, SAE AS568, SAE J200 | 30° to 600° | Black | 00000000 | 000000 |
| 903 | 3/16" | 0.064" | 0.301" | 0.429" | Durometer 75A (Medium) | ASTM D2000, SAE AS568, SAE J200 | 30° to 600° | Black | 00000000 | 00000 |
| 904 | 1/4" | 0.072" | 0.351" | 0.495" | Durometer 75A (Medium) | ASTM D2000, SAE AS568, SAE J200 | 30° to 600° | Black | 00000000 | 00000 |
| 906 | 3/8" | 0.078" | 0.468" | 0.624" | Durometer 75A (Medium) | ASTM D2000, SAE AS568, SAE J200 | 30° to 600° | Black | 00000000 | 00000 |
| 908 | 1/2" | 0.087" | 0.644" | 0.818" | Durometer 75A (Medium) | ASTM D2000, SAE AS568, SAE J200 | 30° to 600° | Black | 00000000 | 00000 |
| 910 | 5/8" | 0.097" | 0.755" | 0.949" | Durometer 75A (Medium) | ASTM D2000, SAE AS568, SAE J200 | 30° to 600° | Black | 00000000 | 00000 |
Ultra-Chemical-Resistant High-Purity Kalrez 6230 O-Rings
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)