PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19590Switch,liquid Level

Setra Systems, Inc. Dba Gems Sensors · NSN 5930-00-451-5976 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-451-5976 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-451-5976. Primary manufacturer part number: 19590.
Features
  • Switch,liquid Level — FSC 5930
  • Contact Arrangement: SINGLE THROW,NORMALLY OPEN
  • DC Voltage Rating: 32.0 VOLTS NOMINAL FOURTH OPERATING POWER RQMT
  • Actuation Method: BUOYANCY
  • Float Quantity: 1
  • Liquid Type for Which Designed: FUEL, NONAIRCRAFT AND HYDRAULIC OIL AND WATER
  • Relay: NOT INCLUDED
  • Phase: SINGLE LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,liquid Level, cataloged under National Stock Number 5930-00-451-5976, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-451-5976
Primary Part Number19590
Item NameSwitch,liquid Level
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
Contact ArrangementSINGLE THROW,NORMALLY OPEN
DC Voltage Rating32.0 VOLTS NOMINAL FOURTH OPERATING POWER RQMT
Actuation MethodBUOYANCY
Float Quantity1
Liquid Type for Which DesignedFUEL, NONAIRCRAFT AND HYDRAULIC OIL AND WATER
RelayNOT INCLUDED
PhaseSINGLE LOCATION NOT OTHERWISE SPECIFIED
Mounting MethodTHREAD
Mounting PositionVERTICAL
Current Rating at Maximum Rated Voltage45.0 MILLIAMPERES RESISTIVE LOAD
Maximum Current Rating500.0 MILLIAMPERES RESISTIVE LOAD
Mounting DimensionsMTD BY 3/4 IN.PIPE THD CONNECTIONS AT INLET AND OUTLET IN
Frequency Rating60.0 HERTZ NOMINAL LOCATION NOT OTHERWISE SPECIFIED
DC Voltage Rating6.0 VOLTS NOMINAL THIRD OPERATING POWER RQMT
AC Voltage Rating220.0 VOLTS NOMINAL SECOND OPERATING POWER RQMT
AC Voltage Rating110.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
Overall Diameter3.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-078-143619590 INTERCHANGEABLE
Switch,electrical
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
2810-00-335-769635565 INTERCHANGEABLE
Body,rear Oil Pump,
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
6930-00-443-964635565 INTERCHANGEABLE
Bed Plate
Cae Usa Inc.
5935-00-630-65979179487 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
5945-00-939-996135565 INTERCHANGEABLE
Relay Assembly
Grimes Aerospace Company
5133-00-988-5675 INTERCHANGEABLE
Drill,twist
5945-01-045-121319590 INTERCHANGEABLE
Solenoid,electrical
Clayton Manufacturing Company
4820-01-110-6620 INTERCHANGEABLE
Trip,valve
5962-01-171-5589932905-111 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5365-01-355-265635565 INTERCHANGEABLE
Spacer,ring
Allied Systems Company Dba Allied Systems Co
Cross-Reference Index
Part NumberManufacturer
35565 Setra Systems, Inc. Dba Gems Sensors (USA)
19590 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
002-008C001 PRIMARY M/j Industries Inc Dba National Control Systems (USA)
Related Parts
5930-00-078-1436INTERCHANGEABLE
SWITCH,ELECTRICAL
19590
2810-00-335-7696INTERCHANGEABLE
BODY,REAR OIL PUMP,
35565
6930-00-443-9646INTERCHANGEABLE
BED PLATE
35565
5935-00-630-6597INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
9179487
5945-00-939-9961INTERCHANGEABLE
RELAY ASSEMBLY
35565
5133-00-988-5675INTERCHANGEABLE
DRILL,TWIST
5945-01-045-1213INTERCHANGEABLE
SOLENOID,ELECTRICAL
19590
4820-01-110-6620INTERCHANGEABLE
TRIP,VALVE
5962-01-171-5589INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932905-111
5365-01-355-2656INTERCHANGEABLE
SPACER,RING
35565
5330-01-382-7000INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
19590
6110-01-383-4122INTERCHANGEABLE
REGULATOR,VOLTAGE
19590

Frequently Asked Questions

What is NSN 5930-00-451-5976?

NSN 5930-00-451-5976 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 5930-00-451-5976?

NSN 5930-00-451-5976 has 3 cross-referenced part numbers: 35565 (Setra Systems, Inc. Dba Gems Sensors), 19590 (Setra Systems, Inc. Dba Gems Sensors), 002-008C001 (M/j Industries Inc Dba National Control Systems).

What NSN replaces 5930-00-451-5976?

There are 12 known substitutes for 5930-00-451-5976: 5930-00-078-1436, 2810-00-335-7696, 6930-00-443-9646 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19590?

Key specifications for 19590: Contact Arrangement: SINGLE THROW,NORMALLY OPEN; DC Voltage Rating: 32.0 VOLTS NOMINAL FOURTH OPERATING POWER RQMT; Actuation Method: BUOYANCY; Float Quantity: 1. 19 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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