The Switch,pressure, cataloged under National Stock Number 5930-00-326-1828, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is United Electric Controls Co Div Precision Sensors Division. Government technical data includes 24 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 | 5930-00-326-1828 |
| Primary Part Number | P56M12 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | United Electric Controls Co Div Precision Sensors Division |
| Status | ACTIVE |
| Body Diameter | 1.750 INCHES NOMINAL IN |
| Width Across Flats | 0.688 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Overall Diameter | 2.500 INCHES NOMINAL IN |
| Proof Pressure | 35.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 3.0 AMPERES INDUCTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | CLAMP |
| Thread Length | 0.188 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN |
| Sensing Element Burst Pressure | 70.00 POUNDS PER SQUARE INCH LBS |
| Style Designator | CYLINDRICAL |
| Pressure Switch Type | GAGE |
| Nominal Thread Size | 0.4375 INCHES SINGLE PRESSURE CONNECTION IN |
| Pressure Connector Type | FLARED, THREADED EXTERNAL SINGLE CONNECTION |
| Operating Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Thread Class | 3A SINGLE PRESSURE CONNECTION A |
| Contact Stimulus Rating | 15.00 DEACTUATION POINT NOMINAL INCHES OF WATER AND 5.00 DIFFERENTIAL POINT NOMINAL INCHES OF WATER |
| Thread Quantity Per Inch | 20 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | UNF SINGLE PRESSURE CONNECTION |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5930-00-326-1828 is a Switch,pressure, manufactured by United Electric Controls Co Div Precision Sensors Division, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-326-1828 has 2 manufacturer part numbers on file: P56M12 (United Electric Controls Co Div Precision Sensors Division), GS535AE1 (Northrop Grumman Systems Corporation).
Key specifications for P56M12: Body Diameter: 1.750 INCHES NOMINAL IN; Width Across Flats: 0.688 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE. 24 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 5930-00-326-1828 has DEMIL Code Q. 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.