The Switch,pressure, cataloged under National Stock Number 5930-01-004-6147, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5930-01-004-6147 |
| Primary Part Number | 21SN04-94F |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| Status | ACTIVE |
| Body Diameter | 1.538 INCHES NOMINAL IN |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Mounting Facility Pattern | FOUR POSITION RECTANGULAR |
| Mounting Method | FLANGE |
| Style Designator | CYLINDRICAL W/LUGS |
| Longest Vertical Distance Between Mounting Centers | 1.538 INCHES NOMINAL IN |
| Pressure Switch Type | DIFFERENTIAL |
| Operating Temp Rating | -54.0 CELSIUS MINIMUM AND 180.0 CELSIUS MAXIMUM DEGC |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Longest Horizontal Distance Between Mounting Centers | 1.538 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 |
|---|---|
| 21SN04-94F PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| Reference | Meaning |
|---|---|
| 21SN04-94A | 5/9 Secondary reference Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
NSN 5930-01-004-6147 is a Switch,pressure, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-004-6147 has 1 manufacturer part number on file: 21SN04-94F (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution).
Key specifications for 21SN04-94F: Body Diameter: 1.538 INCHES NOMINAL IN; Overall Height: 3.500 INCHES NOMINAL IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE. 11 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.