The Switch,pressure, cataloged under National Stock Number 5930-00-355-4457, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Unicontrol Inc Hays Cleveland Div. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-355-4457 |
| Primary Part Number | DFSHC0 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Unicontrol Inc Hays Cleveland Div |
| Status | ACTIVE |
| Frequency in Hertz | 60.0 FIRST VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Proof Pressure | 0.50 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 10.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Mounting Method | INLET CONNECTION |
| Body Height | 2.624 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Pressure Switch Type | DIFFERENTIAL |
| Features Provided | ELECTRICAL ACCESS PORT |
| Nominal Thread Size | 0.125 INCHES FIRST PRESSURE CONNECTION IN |
| Nominal Thread Size | 0.250 INCHES SECOND PRESSURE CONNECTION IN |
| Body Length | 5.688 INCHES NOMINAL IN |
| Pressure Connector Type | PLAIN, THREADED INTERNAL ALL CONNECTIONS |
| Operating Temp Rating | 0.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF |
| Inside Diameter | 0.125 INCHES NOMINAL FIRST CONNECTION IN |
| Inside Diameter | 0.250 INCHES NOMINAL SECOND CONNECTION IN |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Contact Stimulus Rating | 0.40 ACTUATION POINT NOMINAL INCHES OF WATER |
| Thread Series Designator | NPT ALL PRESSURE CONNECTION |
| Contact Adjustability | ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 277.0 AC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 115.0 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 | X |
| Part Number | Manufacturer |
|---|---|
| DFSHC0 PRIMARY | Unicontrol Inc Hays Cleveland Div (USA) |
| Reference | Meaning |
|---|---|
| DFSHC0 | 5/9 Secondary reference Cleveland Controls Inc Div of Unicontrol Inc |
NSN 5930-00-355-4457 is a Switch,pressure, manufactured by Unicontrol Inc Hays Cleveland Div, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-355-4457 has 1 manufacturer part number on file: DFSHC0 (Unicontrol Inc Hays Cleveland Div).
Key specifications for DFSHC0: Overall Height: 3.374 INCHES NOMINAL IN; Frequency in Hertz: 60.0 FIRST VOLTAGE; Contact Action Stimulus: INCREASE; Terminal Type: SCREW. 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.