The Switch,thermostatic, cataloged under National Stock Number 5930-00-787-4633, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-00-787-4633 |
| Primary Part Number | 20810-0-110 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems |
| Status | ACTIVE |
| Frequency in Hertz | 60.0 FIRST VOLTAGE |
| Frequency in Hertz | 60.0 SECOND VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Overall Diameter | 3.750 INCHES NOMINAL IN |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 20.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 20.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 250.0 MILLIAMPERES RESISTIVE LOAD FOURTH VOLTAGE |
| Mounting Method | THREADED BUSHING |
| Contact Adjustment Range | +25.00 TO 225.00 ACTUATION POINT DEGREES FAHRENHEIT |
| Thread Length | 0.375 INCHES NOMINAL SINGLE THREADED BUSHING IN |
| Style Designator | CYLINDRICAL |
| Temp Sensing Element Type | IMMERSION WELL |
| Contact Adjustment Type | INTERNAL ACTUATION POINT SCREW |
| Features Provided | ELECTRICAL ACCESS PORT |
| Nominal Thread Size | 0.500 INCHES SINGLE THREADED BUSHING IN |
| Body Length | 3.672 INCHES NOMINAL IN |
| Operating Temp Rating | -100.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS |
| Contact Stimulus Rating | 110.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT |
| Thread Quantity Per Inch | 14 SINGLE THREADED BUSHING |
| Thread Series Designator | NPT SINGLE THREADED BUSHING |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE, PRESET |
| Contact Voltage Rating in Volts | 250.0 DC AT SEA LEVEL FOURTH VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 DC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 AC AT SEA LEVEL FIRST 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 |
|---|---|
| 20810-0-110 PRIMARY | Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems (USA) |
| Reference | Meaning |
|---|---|
| G243997-1 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 5930-00-787-4633 is a Switch,thermostatic, manufactured by Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-787-4633 has 1 manufacturer part number on file: 20810-0-110 (Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems).
Key specifications for 20810-0-110: Frequency in Hertz: 60.0 FIRST VOLTAGE; Frequency in Hertz: 60.0 SECOND VOLTAGE; Contact Action Stimulus: INCREASE; Terminal Type: SCREW. 29 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.