The Switch,pressure, cataloged under National Stock Number 5930-00-189-2745, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-00-189-2745 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Status | ACTIVE |
| Width Across Flats | 0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Overall Diameter | 1.500 INCHES MAXIMUM IN |
| Proof Pressure | 4500.00 POUNDS PER SQUARE INCH GAGE LBS |
| Contact Load Current Rating | 5.0 AMPERES INDUCTIVE LOAD AND 2.0 AMPERES LAMP LOAD SINGLE VOLTAGE |
| Mounting Method | LINE |
| Style Designator | CYLINDRICAL |
| Pressure Switch Type | GAGE |
| Features Provided | HERMETICALLY SEALED CASE |
| Nominal Thread Size | 0.4375 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 3.144 INCHES NOMINAL IN |
| Pressure Connector Type | PLAIN, THREADED INTERNAL SINGLE CONNECTION |
| Operating Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 275.0 FAHRENHEIT MAXIMUM DEGF |
| Inside Diameter | 0.4375 INCHES NOMINAL SINGLE CONNECTION IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Media for Which Designed | LIQUID |
| Thread Class | 3B SINGLE PRESSURE CONNECTION |
| Contact Stimulus Rating | 3000.00 ACTUATION POINT NOMINAL POUNDS PER SQUARE INCH GAGE AND 2600.00 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH GAGE |
| Thread Series Designator | UNF SINGLE PRESSURE CONNECTION |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE AND DEACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 7545300-1 | 3/2 Design control — primary reference U.S. Government activity |
| 15194-1 | 5/2 Secondary reference U.S. Government activity |
| 8678-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-00-189-2745 is a Switch,pressure, classified under FSC 5930, Switches. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 6625-01-076-2788, 3120-01-118-2524, 5998-01-458-8181. Verify interchangeability with system specifications before substitution.
Key specifications for 5930-00-189-2745: Width Across Flats: 0.688 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE; Overall Diameter: 1.500 INCHES MAXIMUM IN. 22 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.
NSN 5930-00-189-2745 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.