The Switch,liquid Level, cataloged under National Stock Number 5930-01-259-2833, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-259-2833 |
| Primary Part Number | LS-56858 |
| 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 |
| Power Cable Length | 24.000 INCHES NOMINAL IN |
| AC Voltage Rating | 120.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Overall Diameter | 2.135 INCHES NOMINAL IN |
| Mounting Method | FLANGE |
| Mounting Position | VERTICAL |
| Liquid Type for Which Designed | COOLANT FLUID |
| Tank Insertion Length | 39.562 INCHES MINIMUM AND 39.812 INCHES MAXIMUM IN |
| Operating Temp Rating | 1.0 CELSIUS MINIMUM AND 50.0 CELSIUS MAXIMUM DEGC |
| Mounting Dimensions | FLANGE 6.12 IN. DIA WITH SIX 0.562 IN. DIA BOLT HOLES IN |
| Frequency Rating | 60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Electrical Connection Type | CABLE |
| 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 |
|---|---|
| 56858 | Setra Systems, Inc. Dba Gems Sensors (USA) |
| LS-56858 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
| Reference | Meaning |
|---|---|
| 3258022 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5930-01-259-2833 is a Switch,liquid Level, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-259-2833 has 2 manufacturer part numbers on file: 56858 (Setra Systems, Inc. Dba Gems Sensors), LS-56858 (Setra Systems, Inc. Dba Gems Sensors).
1 possible match (shared part number, not a government interchangeability claim): 7010-01-493-3468. Verify interchangeability with system specifications before substitution.
Key specifications for LS-56858: Relay: NOT INCLUDED; Actuation Method: BUOYANCY; Power Cable Length: 24.000 INCHES NOMINAL IN; AC Voltage Rating: 120.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED. 13 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.