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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About O-Rings
More
High-Vacuum Fluoroelastomer O-Rings
These O-rings are heat-treated, cleaned, and double-bagged in an ISO Class 5 (Fed. Std. Class 100) clean room for use in high-vacuum systems. Also known as baked O-rings, they are heated to 300° F to remove trapped air, gases, and other impurities that can escape and contaminate a vacuum system. Made of fluoroelastomer, these O-rings won’t degrade when exposed to chemicals such as benzene, butyl alcohol, and ethylene glycol. They have a round profile and are made to standard SAE AS568 sizes.
For technical drawings and 3-D models, click on a part number.
Fractional | Actual | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dash Number | ID | OD | ID | OD | Hardness | Environmental Rating | Specifications Met | Temperature Range, °F | Color | Each | |
Wd.: 1/16 Fractional (0.070" Actual) | |||||||||||
| 006 | 1/8 | 1/4 | 0.114" | 0.254" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 000000 |
| 007 | 5/32 | 9/32 | 0.145" | 0.285" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 008 | 3/16 | 5/16 | 0.176" | 0.316" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 010 | 1/4 | 3/8 | 0.239" | 0.379" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 011 | 5/16 | 7/16 | 0.301" | 0.441" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 012 | 3/8 | 1/2 | 0.364" | 0.504" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 013 | 7/16 | 9/16 | 0.426" | 0.566" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 014 | 1/2 | 5/8 | 0.489" | 0.629" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
| 015 | 9/16 | 11/16 | 0.551" | 0.691" | Durometer 75A (Medium) | Fed. Std. Class 100, ISO Class 5 | ASTM D2000, SAE AS568 | -15° to 400° | Black | 0000000 | 00000 |
Rings for Claw-Clamp and Bolt-Together
High-Vacuum Fittings for Stainless Steel Tubing
- For Use With: Air
- Max. Temperature: 400° F
- Tubing: Use with 304/304L Stainless Steel or 316/316L Stainless Steel
Create airtight seals in high-vacuum systems by placing these rings between two claw-clamp (ISO-K) or bolt-together (ISO-F) fittings. They contain a Viton® fluoroelastomer O-ring—when you clamp or bolt your fittings together, the O-ring compresses to establish the seal.
For technical drawings and 3-D models, click on a part number.
Claw-Clamp Connection | Flanged Connection | Material | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | Trade Number | High Vacuum Connection Type | For Tube OD | For Flange OD | Trade Number | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Each | |
| 2 1/2" | 3.74" | 63 | ISO-K | 2 1/2" | 5.12" | 63 | ISO-F | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 000000 |
| 3" | 4.33" | 80 | ISO-K | 3" | 5.71" | 80 | ISO-F | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 000000 | 00000 |
| 4" | 5.12" | 100 | ISO-K | 4" | 6.5" | 100 | ISO-F | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 00000 |
| 6" | 7.09" | 160 | ISO-K | 6" | 8.86" | 160 | ISO-F | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 1 × 10 -9 torr @ 72° F | 0000000 | 00000 |