The Switch,thermostatic, cataloged under National Stock Number 5930-01-045-4318, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-045-4318 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Status | ACTIVE |
| Body Diameter | 0.750 INCHES NOMINAL IN |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB W/SCREW |
| Bulb Length | 3.500 INCHES NOMINAL IN |
| Bulb Diameter | 0.250 INCHES NOMINAL IN |
| Contact Load Current Rating | 1.5 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | THREADED BUSHING |
| Temp Sensing Element Type | BULB |
| Features Provided | INTERNALLY GROUNDED |
| Nominal Thread Size | 0.500 INCHES SINGLE THREADED BUSHING IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Media for Which Designed | GAS OR LIQUID |
| Thread Class | 3A SINGLE THREADED BUSHING A |
| Contact Stimulus Rating | 500.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 490.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT |
| Thread Quantity Per Inch | 20 SINGLE THREADED BUSHING |
| Thread Series Designator | UNF SINGLE THREADED BUSHING |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 28.0 DC 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 |
| Reference | Meaning |
|---|---|
| 684-577-9104 | 3/2 Design control — primary reference U.S. Government activity |
| X2003-504 | 5/2 Secondary reference U.S. Government activity |
| 684-577 | 5/9 Secondary reference U.S. Government activity |
| P6719-101 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5930-01-045-4318 is a Switch,thermostatic, classified under FSC 5930, Switches. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5930-01-045-4319, 5930-01-045-4320, 5930-01-045-4321. Verify interchangeability with system specifications before substitution.
Key specifications for 5930-01-045-4318: Body Diameter: 0.750 INCHES NOMINAL IN; Width Across Flats: 0.875 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: TAB W/SCREW. 19 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.