The Switch,pressure, cataloged under National Stock Number 5930-01-239-4437, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sor, Inc.. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-239-4437 |
| Primary Part Number | 5NN-K3-N4-F1A |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Sor, Inc. |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | TWO POSITION IN-LINE |
| Proof Pressure | 2500.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 15.0 AMPERES RESISTIVE LOAD FIRST VOLTAGE |
| Contact Load Current Rating | 400.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) |
| Contact Adjustment Range | +10.00 TO 240.00 ACTUATION POINT POUNDS PER SQUARE INCH AND +10.00 TO 240.00 DEACTUATION POINT POUNDS PER SQUARE INCH |
| Body Height | 3.000 INCHES NOMINAL IN |
| Unthreaded Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR W/BRACKET |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | INTERNAL ACTUATION POINT HEX NUT WITH SCALE AND INTERNAL DEACTUATION POINT HEX NUT WITH SCALE |
| Features Provided | ELECTRICAL ACCESS PORT |
| Distance Between Mounting Facility Centers | 2.750 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Pressure Connector Type | SWIVEL NUT, GASKET SEAL, 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 | LIQUID |
| Thread Quantity Per Inch | 18 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | NPTF SINGLE PRESSURE CONNECTION |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE AND DEACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 480.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 125.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Hazardous Locations/environmental Protection | WEATHERTIGHT |
| 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 |
|---|---|
| 5NN-K3-N4-F1A PRIMARY | Sor, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 5NN-K3-N4-F1A | 3/9 Design control — primary reference Sor Inc |
NSN 5930-01-239-4437 is a Switch,pressure, manufactured by Sor, Inc., classified under FSC 5930, Switches. Status: active.
NSN 5930-01-239-4437 has 1 manufacturer part number on file: 5NN-K3-N4-F1A (Sor, Inc.).
Key specifications for 5NN-K3-N4-F1A: Overall Height: 5.810 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: SCREW; Mounting Facility Pattern: TWO POSITION IN-LINE. 26 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.