The Switch,thermostatic, cataloged under National Stock Number 5930-01-165-1823, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-165-1823 |
| Primary Part Number | 3T0190 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Body Diameter | 13.8 MILLIMETERS NOMINAL MM |
| Width Across Flats | 25.4 MILLIMETERS NOMINAL MM |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | THREADED BUSHING |
| Temp Sensing Element Type | INTERNAL SENSOR |
| Nominal Thread Size | 0.750 INCHES SINGLE THREADED BUSHING IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 190.00 ACTUATION POINT NOMINAL DEGREES FAHRENHEIT AND 175.00 DEACTUATION POINT NOMINAL DEGREES FAHRENHEIT |
| Thread Quantity Per Inch | 16 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 | 32.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 120.0 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 |
|---|---|
| 3T0190 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 051ACA195A-175Y | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 051ACA190A-0026 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-01-165-1823 is a Switch,thermostatic, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-165-1823 has 1 manufacturer part number on file: 3T0190 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 3T0190: Body Diameter: 13.8 MILLIMETERS NOMINAL MM; Width Across Flats: 25.4 MILLIMETERS NOMINAL MM; Contact Action Stimulus: INCREASE; Terminal Type: SCREW. 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.