The Switch,pressure, cataloged under National Stock Number 5930-01-145-0086, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Custom Control Sensors, Llc. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-145-0086 |
| Primary Part Number | 604PM21 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Custom Control Sensors, Llc |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Proof Pressure | 7500.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD AND 3.0 AMPERES INDUCTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 5.0 AMPERES RESISTIVE LOAD AND 5.0 AMPERES INDUCTIVE LOAD FIRST VOLTAGE |
| Mounting Method | UNTHREADED HOLE(S) |
| Contact Adjustment Range | +750.00 TO 3000.00 ACTUATION POINT POUNDS PER SQUARE INCH |
| Unthreaded Mounting Hole Diameter | 0.265 INCHES NOMINAL IN |
| Longest Vertical Distance Between Mounting Centers | 3.100 INCHES NOMINAL IN |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | INTERNAL ACTUATION POINT SERRATED NUT |
| Nominal Thread Size | 0.250 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 3.600 INCHES NOMINAL IN |
| Pressure Connector Type | PLAIN, THREADED INTERNAL SINGLE CONNECTION |
| Operating Temp Rating | -34.0 CELSIUS MINIMUM AND 71.0 CELSIUS MAXIMUM DEGC |
| Nonpile-Up Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS |
| Thread Quantity Per Inch | 18 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | NPT SINGLE PRESSURE CONNECTION |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Contact Voltage Rating in Volts | 250.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Longest Horizontal Distance Between Mounting Centers | 4.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 604PM21 PRIMARY | Custom Control Sensors, Llc (USA) |
| Reference | Meaning |
|---|---|
| 604-P21M | 3/9 Design control — primary reference Custom Control Sensors, Llc |
NSN 5930-01-145-0086 is a Switch,pressure, manufactured by Custom Control Sensors, Llc, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-145-0086 has 1 manufacturer part number on file: 604PM21 (Custom Control Sensors, Llc).
Key specifications for 604PM21: Overall Height: 3.100 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: SCREW; Mounting Facility Pattern: FOUR POSITION RECTANGULAR. 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.
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.