The Switch,pressure, cataloged under National Stock Number 5930-01-188-6644, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 27 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-01-188-6644 |
| Primary Part Number | W96397T9 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Frequency in Hertz | 60.0 FIRST VOLTAGE |
| Frequency in Hertz | 60.0 FOURTH VOLTAGE |
| Frequency in Hertz | 60.0 SECOND VOLTAGE |
| Frequency in Hertz | 60.0 THIRD VOLTAGE |
| Terminal Type | SCREW |
| Mounting Facility Pattern | ISOSCELES TRIANGLE |
| Precious Material | SILVER |
| Contact Load Current Rating | 4.0 AMPERES INDUCTIVE LOAD THIRD VOLTAGE |
| Contact Load Current Rating | 8.0 AMPERES INDUCTIVE LOAD SECOND VOLTAGE |
| Contact Load Current Rating | 3.2 AMPERES INDUCTIVE LOAD FOURTH VOLTAGE |
| Contact Load Current Rating | 9.6 AMPERES INDUCTIVE LOAD FIFTH VOLTAGE |
| Contact Load Current Rating | 4.8 AMPERES INDUCTIVE LOAD SIXTH VOLTAGE |
| Contact Load Current Rating | 2.0 AMPERES INDUCTIVE LOAD EIGHTH VOLTAGE |
| Contact Load Current Rating | 2.5 AMPERES INDUCTIVE LOAD SEVENTH VOLTAGE |
| Contact Load Current Rating | 16.0 AMPERES INDUCTIVE LOAD FIRST VOLTAGE |
| Mounting Method | BRACKET(S) AND UNTHREADED HOLE(S) |
| Unthreaded Mounting Hole Diameter | 0.375 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Longest Vertical Distance Between Mounting Centers | 3.000 INCHES NOMINAL IN |
| Outside Diameter | 0.438 INCHES NOMINAL SINGLE CONNECTION IN |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL ACTUATION POINT SCREW AND INTERNAL DEACTUATION POINT SCREW |
| Nominal Thread Size | 0.438 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 4.250 INCHES NOMINAL IN |
| Pressure Connector Type | GASKET SEAL, THREADED EXTERNAL SINGLE CONNECTION |
| Shortest Vertical Distance Between Mounting Centers | 1.062 INCHES NOMINAL IN |
| Precious Material and Location | CONTACTS SILVER |
| 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 |
|---|---|
| 228303M2 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| W96397T9 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| W96397T9 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 228303M2 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| W96397T9 | 3/9 Design control — primary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 228303M2 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| W96397T9 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-01-188-6644 is a Switch,pressure, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 5930, Switches. Status: active.
NSN 5930-01-188-6644 has 2 manufacturer part numbers on file: 228303M2 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), W96397T9 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
Key specifications for W96397T9: Overall Height: 10.938 INCHES MAXIMUM IN; Frequency in Hertz: 60.0 FIRST VOLTAGE; Frequency in Hertz: 60.0 FOURTH VOLTAGE; Frequency in Hertz: 60.0 SECOND VOLTAGE. 27 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.