Description
Complies with SAE AS26860 Type II
The TA350 is a zinc-plated brass Humidity Indicator Plug, designed for installation into a rigid container through a 1.05 in. (26 mm) diameter hole.
The standard model (TA350-40) comes with a 40% humidity indicator disc. For other configurations with multiple humidity levels, refer to the chart below. The suffix in the part number indicates the included spot or pie-type humidity disc. For example, TA350-2345S includes a spot-type disc indicating 20%, 30%, 40%, and 50% humidity.
| Circle Card Part Number | Standard Item | Indicated Humidity (%) | Segment Type |
|---|---|---|---|
| TA356-HC-2345S | No | 20, 30, 40, 50 | Spot |
| TA356-HC-2345P | Yes | 20, 30, 40, 50 | Pie |
| TA356-HC-345S | No | 30, 40, 50 | Spot |
| TA356-HC-123P | Yes | 10, 20, 30 | Pie |
| TA356-HC-234P | Yes | 20, 30, 40 | Pie |
| TA356-HC-345P | Yes | 30, 40, 50 | Pie |
| TA356-HC-3456P | Yes | 30, 40, 50, 60 | Pie |
| TA356-HC-246P | Yes | 20, 40, 60 | Pie |
| TA356-HC-456P | Yes | 40, 50, 60 | Pie |
| TA356-HC-40 | Yes | 40 | Spot |
Alternative Mounting Option:
A threaded version (TA351) is available for installation into a 3/4-14 straight pipe threaded boss. This version includes a gasket but does not come with a washer or nut.
NSN: 6685-01-081-7036
Specifications:
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Weight: 0.16 lbs (73 grams)
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Max Internal Pressure: 10 psi
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Recommended Torque: 30–40 in-lbs (3.4–4.5 N·m)
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Max Wall Thickness: 0.23 in (6 mm)
The TA350 is suitable for use on enclosures rated NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13, as well as IP66/IP67. Compatibility with other NEMA/IP enclosures depends on the specific application.




