The Switch,liquid Level, cataloged under National Stock Number 5930-01-008-6198, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-008-6198 |
| Primary Part Number | 30874 |
| 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 |
| AC Voltage Rating | 125.0 VOLTS MINIMUM FIRST OPERATING POWER RQMT |
| AC Voltage Rating | 230.0 VOLTS MAXIMUM SECOND OPERATING POWER RQMT |
| DC Voltage Rating | 12.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT |
| DC Voltage Rating | 6.0 VOLTS NOMINAL FIRST ALTERNATE OPERATING POWER RQMT |
| DC Voltage Rating | 24.0 VOLTS NOMINAL THIRD ALTERNATE OPERATING POWER RQMT |
| Mounting Method | FLANGE |
| Mounting Position | VERTICAL |
| Float Quantity | 1 |
| Liquid Type for Which Designed | LUBRICATING OIL |
| Tank Insertion Length | 14.250 INCHES NOMINAL IN |
| Frequency Rating | 60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Electrical Connection Type | CONNECTOR RECEPTACLE |
| 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 |
|---|---|
| 30874 | Setra Systems, Inc. Dba Gems Sensors (USA) |
| Reference | Meaning |
|---|---|
| 134B161DY | 3/9 Design control — primary reference General Electric Co Naval and Drive Turbine Systems Dept |
NSN 5930-01-008-6198 is a Switch,liquid Level, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-008-6198 has 1 manufacturer part number on file: 30874 (Setra Systems, Inc. Dba Gems Sensors).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-180-9799, 3040-01-390-4894, 8040-01-652-7951. Verify interchangeability with system specifications before substitution.
Key specifications for 30874: Relay: NOT INCLUDED; Actuation Method: BUOYANCY; AC Voltage Rating: 125.0 VOLTS MINIMUM FIRST OPERATING POWER RQMT; AC Voltage Rating: 230.0 VOLTS MAXIMUM SECOND OPERATING POWER RQMT. 14 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.