The Switch,liquid Level, cataloged under National Stock Number 5930-00-935-4539, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-935-4539 |
| Primary Part Number | LS16500-4 |
| 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 | 110.0 VOLTS MINIMUM AND 220.0 VOLTS MAXIMUM FIRST OPERATING POWER RQMT |
| Overall Diameter | 5.562 INCHES NOMINAL IN |
| Contact Arrangement | SPST,NORMALLY OPEN |
| Mounting Position | VERTICAL |
| Connector Identification | 3102R16S-4P |
| Float Effective Travel | 7.250 INCHES NOMINAL IN |
| Float Quantity | 1 |
| Liquid Type for Which Designed | FUEL, NONAIRCRAFT |
| Tank Insertion Length | 9.500 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 2-7/32 IN. RADIUS IN |
| Frequency Rating | 60.0 HERTZ NOMINAL FIRST OPERATING POWER RQMT |
| 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 |
|---|---|
| LS16500-4 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
| Reference | Meaning |
|---|---|
| LS16500 | 5/1 Secondary reference Setra Systems, Inc. Dba Gems Sensors |
NSN 5930-00-935-4539 is a Switch,liquid Level, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-935-4539 has 1 manufacturer part number on file: LS16500-4 (Setra Systems, Inc. Dba Gems Sensors).
Key specifications for LS16500-4: Relay: NOT INCLUDED; Actuation Method: BUOYANCY; Phase: SINGLE FIRST OPERATING POWER RQMT; AC Voltage Rating: 110.0 VOLTS MINIMUM AND 220.0 VOLTS MAXIMUM 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.