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 | Straight |
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Connection Type Connection Type |
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 | Press Fit |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Duct Connections
More
Standard Duct and Fittings
No need for clamps or connectors—duct and fittings press-fit together. Male ends are crimped or tapered, making them slightly smaller than a female end for simple assembly.
Aluminum is more lightweight than steel and stainless steel and has good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Straight Reducers, Female × Male
Reducers connect duct with different diameters.
Trade Size | Aluminum | ||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Female ID (A) | Male OD (B) | End Construction | Gauge | Each | |
| 4 | 3 | 4" | 2 7/8" | Crimped | 26 | 0000000 | 000000 |
| 5 | 4 | 5" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 6 | 4 | 6" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 7 | 4 | 7" | 3 7/8" | Crimped | 24 | 0000000 | 00000 |
| 7 | 5 | 7" | 4 7/8" | Crimped | 24 | 0000000 | 00000 |
| 8 | 6 | 8" | 5 7/8" | Crimped | 24 | 0000000 | 00000 |
| 10 | 6 | 10" | 5 7/8" | Crimped | 24 | 0000000 | 00000 |
| 10 | 8 | 10" | 7 7/8" | Crimped | 24 | 0000000 | 00000 |
| 12 | 8 | 12" | 7 7/8" | Crimped | 24 | 0000000 | 00000 |
| 12 | 10 | 12" | 9 7/8" | Crimped | 24 | 0000000 | 00000 |