The Switch,pressure, cataloged under National Stock Number 5930-01-323-3864, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-323-3864 |
| Primary Part Number | D1H-H18SS |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Proof Pressure | 60.00 POUNDS PER SQUARE INCH GAGE LBS |
| Contact Load Current Rating | 3.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 500.0 MILLIAMPERES RESISTIVE LOAD THIRD VOLTAGE |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) |
| Contact Adjustment Range | +0.66 TO 18.00 ACTUATION POINT POUNDS PER SQUARE INCH GAGE AND +0.40 TO 17.74 DEACTUATION POINT POUNDS PER SQUARE INCH GAGE |
| Unthreaded Mounting Hole Diameter | 0.203 INCHES NOMINAL IN |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW AND EXTERNAL DEACTUATION POINT SCREW |
| Features Provided | AUTOMATIC RESET |
| Distance Between Mounting Facility Centers | 2.250 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Pressure Connector Type | PLAIN, THREADED INTERNAL SINGLE CONNECTION |
| Inside Diameter | 0.250 INCHES NOMINAL SINGLE CONNECTION IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Thread Series Designator | NPT SINGLE PRESSURE CONNECTION |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE AND DEACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 24.0 DC AT SEA LEVEL THIRD VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Hazardous Locations/environmental Protection | WATERTIGHT |
| 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 |
|---|---|
| D1H-H18SS PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
NSN 5930-01-323-3864 is a Switch,pressure, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-323-3864 has 1 manufacturer part number on file: D1H-H18SS (Setra Systems, Inc. Dba Gems Sensors).
Key specifications for D1H-H18SS: Overall Height: 3.500 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD; Mounting Facility Pattern: TWO POSITION IN-LINE. 25 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.