The Switch,thermostatic, cataloged under National Stock Number 5930-00-055-9231, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-055-9231 |
| Primary Part Number | 10105980-2 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Body Diameter | 0.660 INCHES MAXIMUM IN |
| Width Across Flats | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Frequency in Hertz | 60.0 SINGLE VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Bulb Length | 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN |
| Bulb Diameter | 0.660 INCHES MAXIMUM IN |
| Contact Load Current Rating | 4.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 6.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 2.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | THREADED BUSHING |
| Thread Length | 0.312 INCHES NOMINAL SINGLE THREADED BUSHING IN |
| Style Designator | CYLINDRICAL W/FLANGE |
| Temp Sensing Element Type | BULB |
| Features Provided | HERMETICALLY SEALED CASE |
| Nominal Thread Size | 0.875 INCHES SINGLE THREADED BUSHING IN |
| Body Length | 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Media for Which Designed | GAS OR LIQUID |
| Thread Class | 2A SINGLE THREADED BUSHING A |
| Contact Stimulus Rating | 164.00 ACTUATION POINT MINIMUM DEGREES FAHRENHEIT AND 174.00 ACTUATION POINT MAXIMUM DEGREES FAHRENHEIT AND 8.00 DIFFERENTIAL POINT MINIMUM DEGREES FAHRENHEIT AND 10.00 DIFFERENTIAL POINT MAXIMUM DEGREES FAHRENHEIT |
| Thread Quantity Per Inch | 14 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 | 30.0 DC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 AC AT SEA LEVEL SECOND 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 |
|---|---|
| 10105980-2 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 21490-2 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-00-055-9231 is a Switch,thermostatic, manufactured by Us Army Aviation and Missile Command, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-055-9231 has 1 manufacturer part number on file: 10105980-2 (Us Army Aviation and Missile Command).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-132-0122, 5999-01-586-9386. Verify interchangeability with system specifications before substitution.
Key specifications for 10105980-2: Body Diameter: 0.660 INCHES MAXIMUM IN; Width Across Flats: 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN; Frequency in Hertz: 60.0 SINGLE VOLTAGE; Contact Action Stimulus: INCREASE. 27 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.