The Switch,liquid Level, cataloged under National Stock Number 5930-01-661-9078, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rosemount Inc.. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-661-9078 |
| Primary Part Number | 2120D1AT1NAAA0000 |
| Item Name | Switch,liquid Level |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Rosemount Inc. |
| Status | ACTIVE |
| Actuation Method | ELECTRONIC |
| AC Voltage Rating | 20.0 VOLTS MINIMUM AND 264.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT |
| DC Voltage Rating | 20.0 VOLTS MINIMUM AND 60.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT |
| Mounting Method | THREAD |
| Mounting Position | HORIZONTAL AND VERTICAL |
| Liquid Type for Which Designed | GENERAL |
| Operating Temp Rating | 40.0 CELSIUS MINIMUM AND 150.0 CELSIUS MAXIMUM DEGC |
| Frequency Rating | 50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT |
| 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 |
|---|---|
| 2120D1AT1NAAA0000 PRIMARY | Rosemount Inc. (USA) |
| 40049410 | Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR) |
NSN 5930-01-661-9078 is a Switch,liquid Level, manufactured by Rosemount Inc., classified under FSC 5930, Switches. Status: active.
NSN 5930-01-661-9078 has 2 manufacturer part numbers on file: 2120D1AT1NAAA0000 (Rosemount Inc.), 40049410 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)).
Key specifications for 2120D1AT1NAAA0000: Actuation Method: ELECTRONIC; AC Voltage Rating: 20.0 VOLTS MINIMUM AND 264.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT; DC Voltage Rating: 20.0 VOLTS MINIMUM AND 60.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT; Mounting Method: THREAD. 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.