The Switch,pressure, cataloged under National Stock Number 5930-01-159-5240, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution. Government technical data includes 17 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 | 5930-01-159-5240 |
| Primary Part Number | 21SN04-214 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| Status | ACTIVE |
| Contact Action Stimulus | DECREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Proof Pressure | 180.00 POUNDS PER SQUARE INCH LBS |
| Contact Load Current Rating | 1.0 AMPERES RESISTIVE LOAD AND 500.0 MILLIAMPERES INDUCTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | THREADED HOLE(S) |
| Thread Length | 0.093 INCHES NOMINAL ALL THREADED HOLE IN |
| Style Designator | CYLINDRICAL W/LUGS |
| Pressure Switch Type | DIFFERENTIAL |
| Nominal Thread Size | 0.190 INCHES ALL THREADED HOLE IN |
| Operating Temp Rating | -40.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC |
| Nonpile-Up Contact Arrangement | 2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | GAS OR LIQUID |
| Thread Class | 3B ALL THREADED HOLE |
| Contact Stimulus Rating | 5.50 DIFFERENTIAL POINT MINIMUM POUNDS PER SQUARE INCH AND 10.00 DIFFERENTIAL POINT MAXIMUM POUNDS PER SQUARE INCH |
| Thread Quantity Per Inch | 32 ALL THREADED HOLE |
| Thread Series Designator | UNF ALL THREADED HOLE |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL SINGLE 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 |
|---|---|
| 21SN04-214 PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
NSN 5930-01-159-5240 is a Switch,pressure, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-159-5240 has 1 manufacturer part number on file: 21SN04-214 (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution).
Key specifications for 21SN04-214: Overall Height: 3.810 INCHES MAXIMUM IN; Contact Action Stimulus: DECREASE; Terminal Type: CONNECTOR, RECEPTACLE; Proof Pressure: 180.00 POUNDS PER SQUARE INCH LBS. 17 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.