The Switch,thermostatic, cataloged under National Stock Number 5930-01-336-9052, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Detroit Switch Inc Dba Detroit Switch Inc. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-336-9052 |
| Primary Part Number | 4B4N01D20AB |
| Item Name | Switch,thermostatic |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Detroit Switch Inc Dba Detroit Switch Inc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Bulb Length | 6.500 INCHES NOMINAL IN |
| Bulb Diameter | 1.125 INCHES NOMINAL IN |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD FOURTH VOLTAGE |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 250.0 MILLIAMPERES RESISTIVE LOAD FIFTH VOLTAGE |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) |
| Contact Adjustment Range | -10.00 TO 60.00 ACTUATION POINT DEGREES FAHRENHEIT |
| Body Height | 2.750 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Temp Sensing Element Type | CAPILLARY TUBE-BULB |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW |
| Features Provided | ELECTRICAL ACCESS PORT AND BOX CONNECTOR |
| Distance Between Mounting Facility Centers | 5.250 INCHES NOMINAL IN |
| Capillary Tube Length | 240.0 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 115.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 230.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 115.0 DC AT SEA LEVEL FOURTH VOLTAGE |
| Contact Voltage Rating in Volts | 230.0 DC AT SEA LEVEL FIFTH 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 |
|---|---|
| 4B4N01D20AB PRIMARY | Detroit Switch Inc Dba Detroit Switch Inc (USA) |
| 025-28185 | Johnson Controls Navy Systems, Llc (USA) |
NSN 5930-01-336-9052 is a Switch,thermostatic, manufactured by Detroit Switch Inc Dba Detroit Switch Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-336-9052 has 2 manufacturer part numbers on file: 4B4N01D20AB (Detroit Switch Inc Dba Detroit Switch Inc), 025-28185 (Johnson Controls Navy Systems, Llc).
Key specifications for 4B4N01D20AB: Overall Height: 4.750 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: SCREW; Mounting Facility Pattern: TWO POSITION IN-LINE. 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.