The Switch,pressure, cataloged under National Stock Number 5930-01-174-8592, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 21 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-174-8592 |
| Primary Part Number | MMP92049-1 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Drs Environmental Systems Inc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Contact Load Current Rating | 3.125 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 6.25 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | BRACKET(S) AND THREADED HOLE(S) |
| Criticality Code Justification | FEAT |
| Outside Diameter | 0.250 INCHES NOMINAL FIRST CONNECTION IN |
| Pressure Switch Type | DIFFERENTIAL |
| Features Provided | MANUAL RESET BUTTON |
| Distance Between Mounting Facility Centers | 1.000 INCHES NOMINAL IN |
| Nominal Thread Size | 0.190 INCHES ALL THREADED HOLE 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 | 2B ALL THREADED HOLE |
| Contact Stimulus Rating | 70.00 ACTUATION POINT MAXIMUM POUNDS PER SQUARE INCH GAGE |
| Thread Series Designator | UNF ALL THREADED HOLE |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE, MANUAL RESET |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| P28DA-140 | Johnson Controls, Inc Div Building Efficiency (USA) |
| MMP92049-1 PRIMARY | Drs Environmental Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| MMP92049-1 | 3/9 Design control — primary reference U.S. Government activity |
| P28DA-140 | 5/2 Secondary reference U.S. Government activity |
NSN 5930-01-174-8592 is a Switch,pressure, manufactured by Drs Environmental Systems Inc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-174-8592 has 2 manufacturer part numbers on file: P28DA-140 (Johnson Controls, Inc Div Building Efficiency), MMP92049-1 (Drs Environmental Systems Inc).
Key specifications for MMP92049-1: Overall Height: 2.290 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: SCREW; Mounting Facility Pattern: TWO POSITION IN-LINE. 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.