Bently Nevada 21000-34-00-20-065-04-02 Proximity Probe Housing Assembly

21000-34-00-20-065-04-02: The Long-Penetration Housing Assembly

The 065 penetration position is what distinguishes this assembly — 6.5 in of probe penetration into the measured space, with a 2.0 in standoff. That combination suits applications where the target sits deep inside the housing and a short-penetration assembly would not reach it.

Decoded against the published configuration data: 34 = probe option, 3300 XL 8 mm probe with connector protector. 00 = probe cable not required. 20 = standoff adapter 2.0 in. 065 = probe penetration 6.5 in. 04 = one 3/4-14 NPT plug only. 02 = mounting thread 3/4-14 NPT.

Probe option 34 includes a connector protector, and the 00 cable position means the probe cable is not supplied with the assembly — the cable is a separate order. That is a common source of a short shipment on this series.

Housing Assemblies by Penetration Depth

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Checking the Cable Position Before Ordering

A 00 cable position means no probe cable is included. On an assembly ordered as a replacement, that is worth confirming explicitly — the cable is a separate part number, and discovering it at installation turns a planned outage window into a second parts delay.

Material and Weight Considerations

The body is aluminum with a 304 stainless steel sleeve, typical weight 1.1 kg. The aluminum body and stainless sleeve combination is what gives the assembly its pressure and temperature capability in steam and turbine service — the sleeve is the wetted-facing part and carries the corrosion burden.

Supply & terms: Stock status: In Stock · Condition: New · Warranty: One Year · Origin: US. Listed by AutoDCS Tech Parts Team · Last updated 2026-10-07.

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