21000-28-05-20-030-04-02: A Housing Assembly with Selectable Hazardous Area Approvals
The 21000 series is a proximity probe housing assembly rather than a bare probe — the housing, standoff and fittings are integral, which is what makes the part number long and the configuration specific. This variant carries the 3300 XL 8 mm probe with selectable hazardous area approvals.
| Feature | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Brand | Bently Nevada |
| Part Number | 21000-28-05-20-030-04-02 |
| Model | 21000 Proximity Probe Housing Assemblies |
| Probe Option | 28 3300 XL 8 mm probe, selectable hazardous area approvals |
| Probe Cable Length | 05 0.5 m (20 in) |
| Standoff Adapter | 20 = 2 in |
| Probe Penetration | 030 = 3 in |
| Fitting Option | 04 One 3/4-14 NPT plug only |
| Mounting Thread Option | 02 3/4-14 NPT |
| Material | Aluminum body with 304 stainless steel sleeve |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
Decoded Configuration
Decoded against the published configuration data: 28 = probe option, 3300 XL 8 mm probe with selectable hazardous area approvals. 05 = probe cable length 0.5 m (20 in). 20 = standoff adapter 2 in. 030 = probe penetration 3 in. 04 = fitting option, one 3/4-14 NPT plug only. 02 = mounting thread 3/4-14 NPT.
Reading a 21000 Series Part Number
Each segment is a mechanical or electrical decision, and two of them are commonly misread. Standoff adapter and probe penetration are separate dimensions: the standoff sets the distance from the housing body, the penetration sets how far the probe extends into the measured space. Ordering one when the other is required produces an assembly that assembles but does not reach.
| Part Number | Housing Configuration |
|---|---|
| 21000-00-00-00-00--03-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-00-00-00-035-04-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-00-00-00-042-03-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-00-00-00-087-03-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-00-00-00-113-00-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-00-00-15-050-00-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-00-00-15-085-03-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-16-05-00-019-03-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-16-05-00-030-04-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
| 21000-16-05-00-039-03-02 | 21000 / 31000 housing assembly — confirm standoff and penetration dimensions |
All Bently Nevada parts · Sensors & Instrumentation
Why the Approval Suffix Matters on This Series
Probe option 28 carries selectable hazardous area approvals, which means the assembly has to be ordered against the area classification of the installation. The mechanical dimensions are identical across approval options — only the certification differs — so a mechanical match is not sufficient for a classified installation.
Supply & terms: Stock status: In Stock · Condition: New · Warranty: One Year · Origin: US. Listed by AutoDCS Tech Parts Team · Last updated .
Availability & Condition at AutoDCSTech
| Part Number | 21000-28-05-20-030-04-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
