PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43821Switch,flow

Setra Systems, Inc. Dba Gems Sensors · NSN 5930-01-025-2545 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-025-2545 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-025-2545. Primary manufacturer part number: 43821.
Features
  • Switch,flow — FSC 5930
  • Nominal Thread Size: 0.500 INCHES SINGLE THREADED BUSHING IN
  • Contact Stimulus Rating: 7.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE
  • Contact Load Current Rating: 45.4 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE
  • Contact Voltage Rating in Volts: 32.0 DC AT SEA LEVEL SECOND VOLTAGE
  • Terminal Type: WIRE LEAD
  • Thread Series Designator: NPT SINGLE THREADED BUSHING
  • Contact Action Stimulus: INCREASE
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,flow, cataloged under National Stock Number 5930-01-025-2545, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Setra Systems, Inc. Dba Gems Sensors. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-025-2545
Primary Part Number43821
Item NameSwitch,flow
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
Nominal Thread Size0.500 INCHES SINGLE THREADED BUSHING IN
Contact Stimulus Rating7.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE
Contact Load Current Rating45.4 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE
Contact Voltage Rating in Volts32.0 DC AT SEA LEVEL SECOND VOLTAGE
Terminal TypeWIRE LEAD
Thread Series DesignatorNPT SINGLE THREADED BUSHING
Contact Action StimulusINCREASE
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
Contact Load Current Rating0.5 AMPERES RESISTIVE LOAD SECOND VOLTAGE
Thread Quantity Per Inch14 SINGLE THREADED BUSHING
Hazardous Locations/environmental ProtectionVIBRATION RESISTANT
Contact Voltage Rating in Volts220.0 AC AT SEA LEVEL FIRST VOLTAGE
Media for Which DesignedLIQUID
Features ProvidedHERMETICALLY SEALED CASE
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Mounting MethodLINE AND THREADED BUSHING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5310-00-115-61194382-1 INTERCHANGEABLE
Washer,flat
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
3455-00-228-529894193 INTERCHANGEABLE
Cutter,milling,end
Jcorps Dba Lashundra Craig
6150-01-270-04154366-4 INTERCHANGEABLE
End Bell,electrical Rotating Equ
Dynamic Air Engineering, Inc.
9540-01-378-634443821 INTERCHANGEABLE
Angle,structural
Aluminum Co of America
5940-01-728-976712606526 INTERCHANGEABLE
Adapter,battery Terminal
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
43664 Setra Systems, Inc. Dba Gems Sensors (USA)
43821 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
FS-200M-SB Setra Systems, Inc. Dba Gems Sensors (USA)
Related Parts
5310-00-115-6119INTERCHANGEABLE
WASHER,FLAT
4382-1
3455-00-228-5298INTERCHANGEABLE
CUTTER,MILLING,END
94193
6150-01-270-0415INTERCHANGEABLE
END BELL,ELECTRICAL ROTATING EQU
4366-4
9540-01-378-6344INTERCHANGEABLE
ANGLE,STRUCTURAL
43821
5940-01-728-9767INTERCHANGEABLE
ADAPTER,BATTERY TERMINAL
12606526

Frequently Asked Questions

What is NSN 5930-01-025-2545?

NSN 5930-01-025-2545 is a Switch,flow, manufactured by Setra Systems, Inc. Dba Gems Sensors, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-01-025-2545?

NSN 5930-01-025-2545 has 3 cross-referenced part numbers: 43664 (Setra Systems, Inc. Dba Gems Sensors), 43821 (Setra Systems, Inc. Dba Gems Sensors), FS-200M-SB (Setra Systems, Inc. Dba Gems Sensors).

What NSN replaces 5930-01-025-2545?

There are 5 known substitutes for 5930-01-025-2545: 5310-00-115-6119, 3455-00-228-5298, 6150-01-270-0415 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43821?

Key specifications for 43821: Overall Length: 3.281 INCHES NOMINAL IN; Nominal Thread Size: 0.500 INCHES SINGLE THREADED BUSHING IN; Contact Stimulus Rating: 7.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE; Contact Load Current Rating: 45.4 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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