The Switch,liquid Level, cataloged under National Stock Number 5930-00-394-9909, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-394-9909 |
| Primary Part Number | LS22944 |
| Item Name | Switch,liquid Level |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Relay | NOT INCLUDED |
| Actuation Method | BUOYANCY |
| Phase | SINGLE FIRST OPERATING POWER RQMT |
| AC Voltage Rating | 230.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT |
| AC Voltage Rating | 115.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| Overall Diameter | 1.180 INCHES NOMINAL IN |
| Current Rating at Maximum Rated Voltage | 0.5 AMPERES RESISTIVE LOAD |
| DC Voltage Rating | 6.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| DC Voltage Rating | 28.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT |
| Mounting Method | THREAD |
| Contact Arrangement | SINGLE THROW,NORMALLY OPEN |
| Mounting Position | VERTICAL |
| Connector Identification | MS3112E-8-3P |
| Float Effective Travel | 3.880 INCHES MINIMUM AND 4.120 INCHES MAXIMUM IN |
| Float Quantity | 1 |
| Liquid Type for Which Designed | COOLANT FLUID |
| Tank Insertion Length | 6.000 INCHES MINIMUM IN |
| Connector Manufacturer Code | 96906 |
| Operating Temp Rating | 0.0 CELSIUS MINIMUM AND 45.0 CELSIUS MAXIMUM DEGC |
| Mounting Dimensions | 1-1/4 IN. NPT IN |
| Electrical Connection Type | CONNECTOR PLUG |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LS22944 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
| Reference | Meaning |
|---|---|
| 251896 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5930-00-394-9909 is a Switch,liquid Level, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-394-9909 has 1 manufacturer part number on file: LS22944 (Setra Systems, Inc. Dba Gems Sensors).
Key specifications for LS22944: Relay: NOT INCLUDED; Actuation Method: BUOYANCY; Phase: SINGLE FIRST OPERATING POWER RQMT; AC Voltage Rating: 230.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT. 21 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.