The Switch,pressure, cataloged under National Stock Number 5930-00-430-4071, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy and Automation Inc Siemens Furnas Controls Div. Government technical data includes 15 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5930-00-430-4071 |
| Primary Part Number | H1 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Siemens Energy and Automation Inc Siemens Furnas Controls Div |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | TAB W/SCREW |
| Mounting Method | INLET CONNECTION |
| Contact Adjustment Range | +15.00 TO 250.00 ACTUATION POINT POUNDS PER SQUARE INCH |
| Body Width | 2.625 INCHES NOMINAL IN |
| Body Height | 2.938 INCHES NOMINAL IN |
| Pressure Switch Type | GAGE |
| Nominal Thread Size | 0.375 INCHES SINGLE PRESSURE CONNECTION IN |
| Body Length | 4.062 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 2 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION |
| Thread Quantity Per Inch | 18 SINGLE PRESSURE CONNECTION |
| Thread Series Designator | NPT SINGLE PRESSURE CONNECTION |
| Contact Adjustability | ACTUATION POINT ADJUSTABLE, PRESET |
| Contact Voltage Rating in Volts | 550.0 AC AT SEA LEVEL FIRST VOLTAGE |
| Contact Voltage Rating in Volts | 230.0 DC AT SEA LEVEL SECOND VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5930-00-430-4071 is a Switch,pressure, manufactured by Siemens Energy and Automation Inc Siemens Furnas Controls Div, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-430-4071 has 2 manufacturer part numbers on file: 057 (Curtis-Toledo, Inc.), H1 (Siemens Energy and Automation Inc Siemens Furnas Controls Div).
2 possible matches (shared part number, not a government interchangeability claim): 3110-01-353-8867, 8145-01-565-5526. Verify interchangeability with system specifications before substitution.
Key specifications for H1: Contact Action Stimulus: INCREASE; Terminal Type: TAB W/SCREW; Mounting Method: INLET CONNECTION; Contact Adjustment Range: +15.00 TO 250.00 ACTUATION POINT POUNDS PER SQUARE INCH. 15 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.