PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27303Switch,flow

Setra Systems, Inc. Dba Gems Sensors · NSN 5930-00-409-0311 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-409-0311 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-409-0311. Primary manufacturer part number: 27303.
Features
  • Switch,flow — FSC 5930
  • Contact Stimulus Rating: 3.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE
  • Contact Voltage Rating in Volts: 220.0 AC AT SEA LEVEL FIRST VOLTAGE
  • Thread Quantity Per Inch: 14 SINGLE THREADED BUSHING
  • Contact Voltage Rating in Volts: 32.0 DC AT SEA LEVEL SECOND VOLTAGE
  • Terminal Type: WIRE LEAD
  • Contact Action Stimulus: DECREASE
  • Thread Series Designator: NPT SINGLE THREADED BUSHING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,flow, cataloged under National Stock Number 5930-00-409-0311, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-409-0311
Primary Part Number27303
Item NameSwitch,flow
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
Contact Stimulus Rating3.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE
Contact Voltage Rating in Volts220.0 AC AT SEA LEVEL FIRST VOLTAGE
Thread Quantity Per Inch14 SINGLE THREADED BUSHING
Contact Voltage Rating in Volts32.0 DC AT SEA LEVEL SECOND VOLTAGE
Terminal TypeWIRE LEAD
Contact Action StimulusDECREASE
Thread Series DesignatorNPT SINGLE THREADED BUSHING
Media for Which DesignedLIQUID
Contact Load Current Rating500.0 MILLIAMPERES RESISTIVE LOAD SECOND VOLTAGE
Nominal Thread Size0.500 INCHES SINGLE THREADED BUSHING IN
Mounting MethodTHREADED BUSHING AND LINE
Contact Load Current Rating45.0 MILLIAMPERES RESISTIVE LOAD FIRST VOLTAGE
Frequency in Hertz60.0 FIRST VOLTAGE
Nonpile-Up Contact Arrangement1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
Contact AdjustabilityACTUATION POINT NOT ADJUSTABLE
Operating Temp Rating-65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5910-00-161-687825-005-100000 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Exxelia Usa, Inc.
5133-00-233-6463 INTERCHANGEABLE
Drill,twist
4720-00-850-4043212MB 1/2X25FT W/FITTINGS INTERCHANGEABLE
Hose Assembly,nonmetallic
Gates Corporation
4020-01-232-1381P1416 YELLOW INTERCHANGEABLE
Rope,fibrous
Wellington Leisure Products Inc Engineered Products Div
5305-01-424-867427303 INTERCHANGEABLE
Screw,machine
Fastenal Company Div Bind
4910-01-479-2439 INTERCHANGEABLE
Gage,tire Pressure,self-Containe
Cross-Reference Index
Part NumberManufacturer
27303 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
FS200MSB Setra Systems, Inc. Dba Gems Sensors (USA)
Related Parts
5910-00-161-6878INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
25-005-100000
5133-00-233-6463INTERCHANGEABLE
DRILL,TWIST
4720-00-850-4043INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
212MB 1/2X25FT W/FITTINGS
4020-01-232-1381INTERCHANGEABLE
ROPE,FIBROUS
P1416 YELLOW
5305-01-424-8674INTERCHANGEABLE
SCREW,MACHINE
27303
4910-01-479-2439INTERCHANGEABLE
GAGE,TIRE PRESSURE,SELF-CONTAINE

Frequently Asked Questions

What is NSN 5930-00-409-0311?

NSN 5930-00-409-0311 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 5930-00-409-0311?

NSN 5930-00-409-0311 has 2 cross-referenced part numbers: 27303 (Setra Systems, Inc. Dba Gems Sensors), FS200MSB (Setra Systems, Inc. Dba Gems Sensors).

What NSN replaces 5930-00-409-0311?

There are 6 known substitutes for 5930-00-409-0311: 5910-00-161-6878, 5133-00-233-6463, 4720-00-850-4043 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27303?

Key specifications for 27303: Contact Stimulus Rating: 3.00 ACTUATION POINT NOMINAL GALLONS PER MINUTE; Contact Voltage Rating in Volts: 220.0 AC AT SEA LEVEL FIRST VOLTAGE; Thread Quantity Per Inch: 14 SINGLE THREADED BUSHING; Contact Voltage Rating in Volts: 32.0 DC AT SEA LEVEL SECOND VOLTAGE. 17 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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