The Switch,thermostatic, cataloged under National Stock Number 5930-00-534-7619, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Instrument Systems Corp. Government technical data includes 22 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-00-534-7619 |
| Primary Part Number | S235A134-1 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Instrument Systems Corp |
| Status | ACTIVE |
| Frequency in Hertz | 400.0 SINGLE VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB, SOLDER LUG |
| Overall Diameter | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Precious Material | PLATINUM |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 500.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | CLAMP |
| Contact Adjustment Range | -55.00 TO 150.00 ACTUATION POINT DEGREES CELSIUS |
| Style Designator | CYLINDRICAL |
| Temp Sensing Element Type | INTERNAL SENSOR |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW |
| Features Provided | HERMETICALLY SEALED CASE |
| Body Length | 0.750 INCHES MAXIMUM IN |
| Operating Temp Rating | 150.0 CELSIUS MAXIMUM AND -55.0 CELSIUS MINIMUM DEGC |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Precious Material and Location | CONTACTS PLATINUM |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 80.00 ACTUATION POINT NOMINAL DEGREES CELSIUS AND 78.00 DEACTUATION POINT NOMINAL DEGREES CELSIUS AND 2.00 DIFFERENTIAL POINT NOMINAL DEGREES CELSIUS |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE, PRESET |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 115.0 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 |
|---|---|
| S235A134-1 PRIMARY | Instrument Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| DRSSMPC0RP80CS | 5/9 Secondary reference Chatham Controls Corp |
NSN 5930-00-534-7619 is a Switch,thermostatic, manufactured by Instrument Systems Corp, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-534-7619 has 1 manufacturer part number on file: S235A134-1 (Instrument Systems Corp).
Key specifications for S235A134-1: Frequency in Hertz: 400.0 SINGLE VOLTAGE; Contact Action Stimulus: INCREASE; Terminal Type: TAB, SOLDER LUG; Overall Diameter: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN. 22 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.