The Switch,thermostatic, cataloged under National Stock Number 5930-00-790-4889, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-790-4889 |
| Primary Part Number | 310-278 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Terminal Type | TAB W/SCREW |
| Contact Load Current Rating | 25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | FLUSH |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Contact Stimulus Rating | 140.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 120.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL SINGLE VOLTAGE |
| 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 |
|---|---|
| 3103-0006 | Keysight Technologies Inc (USA) |
| 310-278 PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 20400DL140-2-5461-2 | 5/2 Secondary reference U.S. Government activity |
| 310-278 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
| 20400DL140-256 | 5/9 Secondary reference Texas Instruments Inc Control Products Div |
| 20400DL140-256 | 5/9 Secondary reference U.S. Government activity |
| 20400D52-112L150-2 | 5/9 Secondary reference U.S. Government activity |
| 3103-0006 | 5/9 Secondary reference Keysight Technologies, Inc. |
| 310-278 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 3103-0006-9 | 5/1 Secondary reference Keysight Technologies Inc |
| 20400D52-112L150-2 | 5/9 Secondary reference Texas Instruments Inc Control Products Div |
| 3103-0006-9 | 5/9 Secondary reference Keysight Technologies, Inc. |
| 3103-0006-9 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 3103-0006 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
NSN 5930-00-790-4889 is a Switch,thermostatic, manufactured by Keysight Technologies Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-790-4889 has 2 manufacturer part numbers on file: 3103-0006 (Keysight Technologies Inc), 310-278 (Keysight Technologies Inc).
2 possible matches (shared part number, not a government interchangeability claim): 2590-01-244-6211, 5961-01-394-9453. Verify interchangeability with system specifications before substitution.
Key specifications for 310-278: Terminal Type: TAB W/SCREW; Contact Load Current Rating: 25.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE; Mounting Method: FLUSH; Nonpile-Up Contact Arrangement: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY. 7 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.