The Switch,pressure, cataloged under National Stock Number 5930-00-028-4143, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. 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. 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 | 5930-00-028-4143 |
| Primary Part Number | 33641 |
| Item Name | Switch,pressure |
| FSC / FSG | 5930 / 59 — Switches |
| Manufacturer | Setra Systems, Inc. Dba Gems Sensors |
| Status | ACTIVE |
| Body Diameter | 0.922 INCHES NOMINAL IN |
| Frequency in Hertz | 60.0 SINGLE VOLTAGE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | WIRE LEAD |
| Overall Diameter | 1.438 INCHES NOMINAL IN |
| Contact Load Current Rating | 0.5 AMPERES RESISTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | CLAMP |
| Contact Adjustment Range | +1.55 TO 1.60 ACTUATION POINT GALLONS PER MINUTE AND +1.55 TO 1.60 DEACTUATION POINT GALLONS PER MINUTE |
| Style Designator | CYLINDRICAL |
| Pressure Switch Type | GAGE |
| Contact Adjustment Type | EXTERNAL DEACTUATION POINT SHAFT AND EXTERNAL ACTUATION POINT SHAFT |
| Body Length | 1.188 INCHES NOMINAL IN |
| Nonpile-Up Contact Arrangement | 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION |
| Media for Which Designed | LIQUID |
| Contact Stimulus Rating | 1.50 ACTUATION POINT NOMINAL GALLONS PER MINUTE AND 0.50 DIFFERENTIAL POINT NOMINAL GALLONS PER MINUTE |
| Contact Adjustability | DEACTUATION POINT ADJUSTABLE, PRESET AND ACTUATION POINT ADJUSTABLE, PRESET |
| Contact Voltage Rating in Volts | 250.0 AC 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 |
|---|---|
| 33641 PRIMARY | Setra Systems, Inc. Dba Gems Sensors (USA) |
NSN 5930-00-028-4143 is a Switch,pressure, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930, Switches. Status: active.
NSN 5930-00-028-4143 has 1 manufacturer part number on file: 33641 (Setra Systems, Inc. Dba Gems Sensors).
2 possible matches (shared part number, not a government interchangeability claim): 2810-00-118-9410, 5950-00-844-6726. Verify interchangeability with system specifications before substitution.
Key specifications for 33641: Body Diameter: 0.922 INCHES NOMINAL IN; Frequency in Hertz: 60.0 SINGLE VOLTAGE; Contact Action Stimulus: INCREASE; Terminal Type: WIRE LEAD. 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.