The Switch,thermostatic, cataloged under National Stock Number 5930-01-308-1492, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-308-1492 |
| Primary Part Number | 8623991-0 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | QUICK DISCONNECT, MALE |
| Overall Diameter | 0.630 INCHES MAXIMUM IN |
| Precious Material | SILVER |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | THREADED STUD(S) |
| Body Height | 0.376 INCHES NOMINAL IN |
| Style Designator | DISC |
| Temp Sensing Element Type | INTERNAL SENSOR |
| Nominal Thread Size | 0.138 INCHES SINGLE THREADED STUD IN |
| Operating Temp Rating | 201.0 FAHRENHEIT MINIMUM AND 300.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Precious Material and Location | CONTACTS SILVER |
| Media for Which Designed | GAS OR LIQUID |
| Thread Class | 2A SINGLE THREADED STUD A |
| Contact Stimulus Rating | 220.00 ACTUATION POINT MINIMUM DEGREES FAHRENHEIT AND 250.00 ACTUATION POINT MAXIMUM DEGREES FAHRENHEIT AND 20.00 DIFFERENTIAL POINT MINIMUM DEGREES FAHRENHEIT AND 100.00 DIFFERENTIAL POINT MAXIMUM DEGREES FAHRENHEIT |
| Thread Quantity Per Inch | 32 SINGLE THREADED STUD |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE THREADED STUD |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 240.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 120.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Hazardous Locations/environmental Protection | DUSTPROOF |
| 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 |
|---|---|
| 8623991-0 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 7BT-L-6-B-20 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-01-308-1492 is a Switch,thermostatic, manufactured by Kalmar AC Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-308-1492 has 1 manufacturer part number on file: 8623991-0 (Kalmar AC Inc).
Key specifications for 8623991-0: Overall Height: 0.937 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: QUICK DISCONNECT, MALE; Overall Diameter: 0.630 INCHES MAXIMUM IN. 23 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.