The Switch,liquid Level, cataloged under National Stock Number 5930-01-600-4324, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Harwil Corp. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-600-4324 |
| Primary Part Number | L-21N/11A/5/F/HA |
| Item Name | Switch,liquid Level |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Harwil Corp |
| Status | ACTIVE |
| Relay | INCLUDED |
| Actuation Method | BUOYANCY |
| AC Voltage Rating | 125.0 VOLTS MINIMUM AND 250.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT |
| Overall Diameter | 34.3 MILLIMETERS NOMINAL MM |
| Mounting Position | HORIZONTAL AND VERTICAL |
| Liquid Type for Which Designed | WATER AND SEA WATER |
| Operating Temp Rating | 75.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF |
| 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 |
|---|---|
| L-21N/11A/5/F/HA PRIMARY | Harwil Corp (USA) |
NSN 5930-01-600-4324 is a Switch,liquid Level, manufactured by Harwil Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-600-4324 has 1 manufacturer part number on file: L-21N/11A/5/F/HA (Harwil Corp).
Key specifications for L-21N/11A/5/F/HA: Relay: INCLUDED; Actuation Method: BUOYANCY; AC Voltage Rating: 125.0 VOLTS MINIMUM AND 250.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT; Overall Diameter: 34.3 MILLIMETERS NOMINAL MM. 8 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.