PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

01901Switch,liquid Level

Setra Systems, Inc. Dba Gems Sensors · NSN 5930-01-054-2903 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-054-2903 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-054-2903. Primary manufacturer part number: 01901.
Features
  • Switch,liquid Level — FSC 5930
  • AC Voltage Rating: 120.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT
  • AC Voltage Rating: 240.0 VOLTS NOMINAL THIRD ALTERNATE OPERATING POWER RQMT
  • Float Quantity: 1
  • Maximum Current Rating: 0.3 AMPERES NOMINAL LOAD
  • Mounting Dimensions: ONE 1/4 IN. NPT EXTERNALLY THREADED CONNECTOR IN
  • DC Voltage Rating: 0.0 VOLTS MINIMUM AND 50.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT
  • Relay: NOT INCLUDED
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,liquid Level, cataloged under National Stock Number 5930-01-054-2903, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-054-2903
Primary Part Number01901
Item NameSwitch,liquid Level
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
AC Voltage Rating120.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT
AC Voltage Rating240.0 VOLTS NOMINAL THIRD ALTERNATE OPERATING POWER RQMT
Float Quantity1
Maximum Current Rating0.3 AMPERES NOMINAL LOAD
Mounting DimensionsONE 1/4 IN. NPT EXTERNALLY THREADED CONNECTOR IN
DC Voltage Rating0.0 VOLTS MINIMUM AND 50.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT
RelayNOT INCLUDED
AC Voltage Rating0.0 VOLTS MINIMUM AND 50.0 VOLTS MAXIMUM FIRST ALTERNATE OPERATING POWER RQMT
Operating Temp Rating0.0 FAHRENHEIT MINIMUM AND 230.0 FAHRENHEIT MAXIMUM DEGF
DC Voltage Rating240.0 VOLTS NOMINAL THIRD ALTERNATE OPERATING POWER RQMT
Mounting MethodTHREAD
Overall Diameter1.875 INCHES NOMINAL IN
Actuation MethodBUOYANCY
Contact ArrangementSINGLE POLE,SINGLE THROW,NORMALLY OPEN
Current Rating at Maximum Rated Voltage0.06 AMPERES NOMINAL LOAD
Mounting PositionVERTICAL
Voltage Rating at Maximum Rated Current50.0 VOLTS
DC Voltage Rating120.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT
Electrical Connection TypeCABLE
Liquid Type for Which DesignedLUBRICATING OIL AND WATER
Power Cable Length24.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-154-38342187398-5 INTERCHANGEABLE
Reactor
L3 Technologies, Inc. Div Communication Systems-East
3110-00-198-23155304A-2Z/LHT55 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
2530-00-272-7518MCFE050 INTERCHANGEABLE
Weight,wheel Balancing
Napa Automotive Parts Co
5310-00-275-661601901 INTERCHANGEABLE
Washer,spring Tension
Defense Logistics Agency Dba Defense Supply Center Philadelphia
6210-01-088-498655604 INTERCHANGEABLE
Lens Assembly,high
L3 Technologies, Inc. Div L3 Keo
5130-01-244-4088 INTERCHANGEABLE
Adapter,abrasive Disk
6515-01-581-001901901 INTERCHANGEABLE
Forceps,endoscopic
Smith & Nephew Inc Div Sports Medicine/endoscopy/ent
Cross-Reference Index
Part NumberManufacturer
55604 Keco Industries, Inc. (USA)
01901 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
Related Parts
5950-00-154-3834INTERCHANGEABLE
REACTOR
2187398-5
3110-00-198-2315INTERCHANGEABLE
BEARING,BALL,ANNULAR
5304A-2Z/LHT55
2530-00-272-7518INTERCHANGEABLE
WEIGHT,WHEEL BALANCING
MCFE050
5310-00-275-6616INTERCHANGEABLE
WASHER,SPRING TENSION
01901
6210-01-088-4986INTERCHANGEABLE
LENS ASSEMBLY,HIGH
55604
5130-01-244-4088INTERCHANGEABLE
ADAPTER,ABRASIVE DISK
6515-01-581-0019INTERCHANGEABLE
FORCEPS,ENDOSCOPIC
01901

Frequently Asked Questions

What is NSN 5930-01-054-2903?

NSN 5930-01-054-2903 is a Switch,liquid Level, 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 5930-01-054-2903?

NSN 5930-01-054-2903 has 2 cross-referenced part numbers: 55604 (Keco Industries, Inc.), 01901 (Setra Systems, Inc. Dba Gems Sensors).

What NSN replaces 5930-01-054-2903?

There are 7 known substitutes for 5930-01-054-2903: 5950-00-154-3834, 3110-00-198-2315, 2530-00-272-7518 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 01901?

Key specifications for 01901: AC Voltage Rating: 120.0 VOLTS NOMINAL SECOND ALTERNATE OPERATING POWER RQMT; AC Voltage Rating: 240.0 VOLTS NOMINAL THIRD ALTERNATE OPERATING POWER RQMT; Float Quantity: 1; Maximum Current Rating: 0.3 AMPERES NOMINAL LOAD. 23 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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