The Switch,pressure, cataloged under National Stock Number 5930-01-519-4878, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Johnson Controls, Inc Div Building Efficiency. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-519-4878 |
| Primary Part Number | 49-22949 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Johnson Controls, Inc Div Building Efficiency |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Proof Pressure | 60.00 POUNDS PER SQUARE INCH GAGE LBS |
| Contact Load Current Rating | 8.0 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | BRACKET(S) AND THREADED HOLE(S) |
| Contact Adjustment Range | +0.40 TO 18.00 ACTUATION POINT POUNDS PER SQUARE INCH GAGE AND +0.30 TO 16.00 DEACTUATION POINT POUNDS PER SQUARE INCH GAGE |
| Body Width | 3.438 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR W/BRACKET |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL DEACTUATION POINT SCREW |
| Features Provided | ELECTRICAL ACCESS PORT |
| Distance Between Mounting Facility Centers | 2.250 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 4.562 INCHES NOMINAL 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 |
| Contact Voltage Rating in Volts | 32.0 DC AT SEA LEVEL SINGLE VOLTAGE |
| Hazardous Locations/environmental Protection | DUSTPROOF |
| 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 |
|---|---|
| MEL90425-6 | Carrier Corp (USA) |
| 49-22949 PRIMARY | Johnson Controls, Inc Div Building Efficiency (USA) |
NSN 5930-01-519-4878 is a Switch,pressure, manufactured by Johnson Controls, Inc Div Building Efficiency, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-519-4878 has 2 manufacturer part numbers on file: MEL90425-6 (Carrier Corp), 49-22949 (Johnson Controls, Inc Div Building Efficiency).
Key specifications for 49-22949: Overall Height: 4.234 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.