The Switch,thermostatic, cataloged under National Stock Number 5930-00-161-3178, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Koenig-Pretempco Inc. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-00-161-3178 |
| Primary Part Number | KPE105-2BSB-1590 |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Koenig-Pretempco Inc |
| Status | ACTIVE |
| Frequency in Hertz | 400.0 SINGLE VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB W/SCREW |
| Mounting Facility Pattern | TWO POSITION DIAGONAL |
| Bulb Length | 3.625 INCHES NOMINAL IN |
| Bulb Diameter | 0.688 INCHES NOMINAL IN |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 250.0 MILLIAMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Mounting Method | SURFACE |
| Contact Adjustment Range | +90.00 TO 240.00 ACTUATION POINT DEGREES FAHRENHEIT AND +55.00 TO 235.00 DEACTUATION POINT DEGREES FAHRENHEIT |
| Body Height | 3.500 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Longest Vertical Distance Between Mounting Centers | 2.750 INCHES NOMINAL IN |
| Temp Sensing Element Type | CAPILLARY TUBE-BULB |
| Contact Adjustment Type | EXTERNAL DEACTUATION POINT SCREW AND EXTERNAL ACTUATION POINT SCREW |
| Features Provided | ELECTRICAL ACCESS PORT |
| Capillary Tube Length | 72.000 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Contact Adjustability | DEACTUATION POINT ADJUSTABLE AND ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 250.0 DC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Longest Horizontal Distance Between Mounting Centers | 2.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| KPE105-2BSB-1590 PRIMARY | Koenig-Pretempco Inc (USA) |
| Reference | Meaning |
|---|---|
| 22A1AF240RB | 5/9 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
NSN 5930-00-161-3178 is a Switch,thermostatic, manufactured by Koenig-Pretempco Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-161-3178 has 1 manufacturer part number on file: KPE105-2BSB-1590 (Koenig-Pretempco Inc).
Key specifications for KPE105-2BSB-1590: Overall Height: 4.375 INCHES NOMINAL IN; Frequency in Hertz: 400.0 SINGLE VOLTAGE; Contact Action Stimulus: INCREASE; Terminal Type: TAB W/SCREW. 25 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.