The Switch,liquid Level, cataloged under National Stock Number 5930-01-009-6239, 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 16 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. 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 | 5930-01-009-6239 |
| Primary Part Number | 36181 |
| 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 | 220.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT |
| AC Voltage Rating | 110.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT |
| Overall Diameter | 5.562 INCHES NOMINAL IN |
| Mounting Method | FLANGE |
| Contact Arrangement | SINGLE THROW,NORMALLY OPEN |
| Mounting Position | VERTICAL |
| Supplementary Features | CONTACTS TO CLOSE ON RISE |
| Float Quantity | 1 |
| Liquid Type for Which Designed | HYDRAULIC OIL OR LUBRICANT OR SEA WATER OR VARIOUS FUELS OR WATER |
| Tank Insertion Length | 11.938 INCHES MINIMUM AND 12.062 INCHES MAXIMUM IN |
| Operating Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF |
| Mounting Dimensions | MTD BY SIX 9/16 IN. DIA HOLES EQUALLY SPACED ON A 4-7/16 IN. DIA BOLT CIRCLE 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 |
|---|---|
| 36181 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
NSN 5930-01-009-6239 is a Switch,liquid Level, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-009-6239 has 1 manufacturer part number on file: 36181 (Setra Systems, Inc. Dba Gems Sensors).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-334-2448, 5998-01-507-5348, 4320-01-669-3147. Verify interchangeability with system specifications before substitution.
Key specifications for 36181: Relay: NOT INCLUDED; Actuation Method: BUOYANCY; AC Voltage Rating: 220.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT; AC Voltage Rating: 110.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT. 16 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.