The Switch,pressure, cataloged under National Stock Number 5930-01-453-2549, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-453-2549 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Status | ACTIVE |
| Body Diameter | 1.480 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, PLUG |
| Overall Diameter | 1.595 INCHES NOMINAL IN |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | BRACKET(S) |
| Style Designator | CYLINDRICAL |
| Outside Diameter | 0.435 INCHES NOMINAL ALL CONNECTIONS IN |
| Pressure Switch Type | DIFFERENTIAL |
| Thread Direction | RIGHT-HAND ALL PRESSURE CONNECTION |
| Nominal Thread Size | 0.437 INCHES ALL PRESSURE CONNECTION IN |
| Body Length | 0.960 INCHES NOMINAL IN |
| Pressure Connector Type | FLARED, THREADED EXTERNAL ALL CONNECTIONS |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | LIQUID |
| Thread Class | 3A ALL PRESSURE CONNECTION A |
| Contact Stimulus Rating | 2.70 ACTUATION POINT MINIMUM POUNDS PER SQUARE INCH AND 3.30 ACTUATION POINT MAXIMUM POUNDS PER SQUARE INCH AND 1.50 DEACTUATION POINT NOMINAL POUNDS PER SQUARE INCH |
| Thread Quantity Per Inch | 20 ALL PRESSURE CONNECTION |
| Thread Series Designator | UNF ALL 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 A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12613-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5930-01-453-2549 is a Switch,pressure, classified under FSC 5930, Switches. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1945-01-532-4428. Verify interchangeability with system specifications before substitution.
Key specifications for 5930-01-453-2549: Body Diameter: 1.480 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, PLUG; Overall Diameter: 1.595 INCHES NOMINAL IN. 21 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.