The Switch,thermostatic, cataloged under National Stock Number 5930-00-856-7791, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-00-856-7791 |
| Primary Part Number | 26020034 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Body Diameter | 0.312 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Bulb Length | 0.313 INCHES NOMINAL IN |
| Bulb Diameter | 0.188 INCHES NOMINAL IN |
| Contact Load Current Rating | 2.1 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | THREADED BUSHING |
| Style Designator | CYLINDRICAL W/FLANGE |
| Temp Sensing Element Type | CAPILLARY TUBE-BULB |
| Nominal Thread Size | 0.500 INCHES SINGLE THREADED BUSHING IN |
| Capillary Tube Length | 1.688 INCHES NOMINAL IN |
| Operating Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Thread Class | 3A SINGLE THREADED BUSHING A |
| Contact Stimulus Rating | 340.00 ACTUATION POINT MINIMUM DEGREES FAHRENHEIT AND 360.00 ACTUATION POINT MAXIMUM DEGREES FAHRENHEIT AND 10.00 DIFFERENTIAL POINT NOMINAL DEGREES FAHRENHEIT |
| Thread Quantity Per Inch | 20 SINGLE THREADED BUSHING |
| Thread Series Designator | UNF SINGLE THREADED BUSHING |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 30.0 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 |
|---|---|
| 26020034 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 26020034 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-00-856-7791 is a Switch,thermostatic, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-856-7791 has 1 manufacturer part number on file: 26020034 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 26020034: Body Diameter: 0.312 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE; Bulb Length: 0.313 INCHES NOMINAL IN. 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.