The Switch,thermostatic, cataloged under National Stock Number 5930-01-353-5444, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Therm-O-Disc Inc Sub of Emerson Electric Co. Government technical data includes 17 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 | 5930-01-353-5444 |
| Primary Part Number | TS99B3 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Therm-O-Disc Inc Sub of Emerson Electric Co |
| Status | ACTIVE |
| Body Diameter | 0.394 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN |
| Width Across Flats | 0.738 INCHES MINIMUM AND 0.758 INCHES MAXIMUM IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | IMMERSION WELL |
| Thread Length | 0.541 INCHES MINIMUM AND 0.561 INCHES MAXIMUM SINGLE THREADED BUSHING IN |
| Style Designator | CYLINDRICAL W/FLANGE |
| Temp Sensing Element Type | INTERNAL SENSOR |
| Nominal Thread Size | 0.375 INCHES SINGLE THREADED BUSHING IN |
| Body Length | 1.704 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Media for Which Designed | GAS |
| Contact Stimulus Rating | 219.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 210.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT |
| Thread Series Designator | NPT SINGLE THREADED BUSHING |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 15.0 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 |
| Part Number | Manufacturer |
|---|---|
| TS99B3 PRIMARY | Therm-O-Disc Inc Sub of Emerson Electric Co (USA) |
NSN 5930-01-353-5444 is a Switch,thermostatic, manufactured by Therm-O-Disc Inc Sub of Emerson Electric Co, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-353-5444 has 1 manufacturer part number on file: TS99B3 (Therm-O-Disc Inc Sub of Emerson Electric Co).
Key specifications for TS99B3: Body Diameter: 0.394 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN; Width Across Flats: 0.738 INCHES MINIMUM AND 0.758 INCHES MAXIMUM IN; Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD. 17 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.