Flange mounted, 3-level RH indicator, no thread.
SKU: AD328
Categories: Humidity Indicator Plugs for Equipment, Humidity Indicators
Tags: Military, Optical, REACH, RoHS
Description
AD328 is a low-profile flange-mounted humidity indicator plug for military electronics and optical assemblies. It has a three-level 30/50/70% RH disc and is secured through two flange holes.
The plug seals using an O-ring on its bore rather than a mounting thread. The supplied operating temperature range is −55 to +150 °C.
Technical specifications
| Specification | Value |
|---|---|
| Mounting | Flange mounted; O-ring seal on bore |
| O-seal | EPDM, size 0181-16 |
| Overall depth | 14 mm |
| Material | Anodised aluminium |
| Finish | Black to DEF STAN 03-25; counterbores chromate finish |
| Indicator disc | 30/50/70% RH at 25 °C |
| Operating temperature | −55 to +150 °C |
| Saab reference | 02827931 |
| Compliance | REACH and RoHS |
Flange mounting uses M3 screw holes and an O-ring bore of Ø21 mm f8. There is no external mounting thread.
Further information
| Mounting | Flange mounted; M3 screw holes; O-ring bore Ø21 mm f8 |
|---|---|
| Seal | EPDM (0181-16) |
| Depth | 14mm |
| Material | Anodised Aluminium |
Drawings available on request.
Request drawings



