The Switch,flow, cataloged under National Stock Number 5930-01-073-8839, is classified within Federal Supply Class 5930 (Switches) of the Electrical and Electronic Equipment Components group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 5930-01-073-8839 |
| Item Name | Switch,flow |
| FSC / FSG | 5930 / 59 — Switches |
| Status | ACTIVE |
| Contact Action Stimulus | INCREASE |
| Terminal Type | CONNECTOR, RECEPTACLE |
| Contact Load Current Rating | 3.0 AMPERES INDUCTIVE LOAD SINGLE VOLTAGE |
| Mounting Method | INLET CONNECTION AND OUTLET CONNECTION |
| Thread Length | 0.834 INCHES MINIMUM ALL PRESSURE CONNECTION IN |
| Body Height | 2.300 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR |
| Features Provided | HERMETICALLY SEALED CASE |
| Nominal Thread Size | 0.750 INCHES SINGLE PRESSURE CONNECTION IN |
| Specification/standard Data | 81349-MIL-S-28788/1 GOVERNMENT SPECIFICATION |
| Body Length | 2.500 INCHES MINIMUM AND 3.270 INCHES MAXIMUM IN |
| Operating Temp Rating | 32.0 FAHRENHEIT MINIMUM AND 185.0 FAHRENHEIT MAXIMUM DEGF |
| Nonpile-Up Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Media for Which Designed | LIQUID |
| Thread Class | 3B ALL PRESSURE CONNECTION |
| Test Data Document | 81349-MIL-S-28788 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Contact Stimulus Rating | 3.70 ACTUATION POINT NOMINAL GALLONS PER MINUTE AND 2.90 DEACTUATION POINT NOMINAL GALLONS PER MINUTE AND 0.80 DIFFERENTIAL POINT NOMINAL GALLONS PER MINUTE |
| Thread Quantity Per Inch | 16 ALL PRESSURE CONNECTION |
| Thread Series Designator | UNF ALL PRESSURE CONNECTION |
| Contact Adjustability | DEACTUATION POINT NOT ADJUSTABLE AND ACTUATION POINT NOT ADJUSTABLE |
| Contact Voltage Rating in Volts | 28.0 DC AT SEA LEVEL SINGLE VOLTAGE |
| Hazardous Locations/environmental Protection | DUSTPROOF AND EXPLOSION PROOF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-DTL-28788/1 | 4/1 Identification reference U.S. Government activity |
| M28788/1-5 | 2/2 Government specification standardization U.S. Government activity |
| MIL-S-28788/1 | 5/9 Secondary reference U.S. Government activity |
NSN 5930-01-073-8839 is a Switch,flow, classified under FSC 5930, Switches. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 5930-01-078-1319, 5930-01-108-7113, 5930-01-118-7703. Verify interchangeability with system specifications before substitution.
Key specifications for 5930-01-073-8839: Overall Height: 3.910 INCHES MAXIMUM IN; Contact Action Stimulus: INCREASE; Terminal Type: CONNECTOR, RECEPTACLE; Contact Load Current Rating: 3.0 AMPERES INDUCTIVE LOAD SINGLE VOLTAGE. 22 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.