PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30021Switch,liquid Level

Setra Systems, Inc. Dba Gems Sensors · NSN 5930-01-012-8748 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-012-8748 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-012-8748. Primary manufacturer part number: 30021.
Features
  • Switch,liquid Level — FSC 5930
  • AC Voltage Rating: 120.0 VOLTS MINIMUM FIRST ALTERNATE OPERATING POWER RQMT
  • Connector Identification: MIL-C-5015D AND 16695
  • AC Voltage Rating: 240.0 VOLTS MAXIMUM SECOND ALTERNATE OPERATING POWER RQMT
  • Liquid Type for Which Designed: HYDRAULIC OIL AND LUBRICATING OIL AND SEA WATER AND VARIOUS FUELS AND WATER
  • Frequency Rating: 60.0 HERTZ NOMINAL SECOND ALTERNATE OPERATING POWER RQMT
  • Mounting Dimensions: MTD BY FOUR 9/32 IN. DIA HOLES LOCATED ON 3-1/2 IN. DIA BOLT CIRCLE IN
  • Relay: NOT INCLUDED
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,liquid Level, cataloged under National Stock Number 5930-01-012-8748, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-012-8748
Primary Part Number30021
Item NameSwitch,liquid Level
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerSetra Systems, Inc. Dba Gems Sensors
StatusACTIVE
AC Voltage Rating120.0 VOLTS MINIMUM FIRST ALTERNATE OPERATING POWER RQMT
Connector IdentificationMIL-C-5015D AND 16695
AC Voltage Rating240.0 VOLTS MAXIMUM SECOND ALTERNATE OPERATING POWER RQMT
Liquid Type for Which DesignedHYDRAULIC OIL AND LUBRICATING OIL AND SEA WATER AND VARIOUS FUELS AND WATER
Frequency Rating60.0 HERTZ NOMINAL SECOND ALTERNATE OPERATING POWER RQMT
Mounting DimensionsMTD BY FOUR 9/32 IN. DIA HOLES LOCATED ON 3-1/2 IN. DIA BOLT CIRCLE IN
RelayNOT INCLUDED
Actuation MethodBUOYANCY
Electrical Connection TypeCONNECTOR RECEPTACLE
Overall Diameter4.500 INCHES NOMINAL IN
Operating Temp Rating-65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF
Connector Manufacturer Code04034
Float Quantity1
Mounting PositionVERTICAL
Frequency Rating60.0 HERTZ NOMINAL FIRST ALTERNATE OPERATING POWER RQMT
Mounting MethodFLANGE
Tank Insertion Length5.875 INCHES MINIMUM AND 6.125 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5910-00-106-0931441-1030-021 INTERCHANGEABLE
Capacitor,fixed,electrolytic
The Boeing Company Div Legacy Boeing Hb1
5930-00-936-457230021 INTERCHANGEABLE
Switch,push
Essex Industries Inc Div Manufacturing Division
5940-00-988-5076BLU4S2 INTERCHANGEABLE
Terminal,lug
Penn-Union Corp Div Penn-Union Corp
2590-01-030-377730021 INTERCHANGEABLE
Hydraulic Power Sup
Cadillac Gage Textron Inc.
5962-01-115-2154 INTERCHANGEABLE
Microcircuit,digital
5998-01-119-6749 INTERCHANGEABLE
Circuit Card Assembly
5895-01-223-4569 INTERCHANGEABLE
Up Converter
4820-01-286-425930021 INTERCHANGEABLE
Valve,linear,directional Control
Hanson Machine
5130-01-397-97503002-1 INTERCHANGEABLE
Drill,electric,portable
Milwaukee Electric Tool Corp Dba Milwaukee Electric Tools
6520-01-501-056030021 INTERCHANGEABLE
Bur,dental Surgery
Ss White Burs Llc
Cross-Reference Index
Part NumberManufacturer
LS-29960-1 Setra Systems, Inc. Dba Gems Sensors (USA)
30021 PRIMARY Setra Systems, Inc. Dba Gems Sensors (USA)
Related Parts
5910-00-106-0931INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
441-1030-021
5930-00-936-4572INTERCHANGEABLE
SWITCH,PUSH
30021
5940-00-988-5076INTERCHANGEABLE
TERMINAL,LUG
BLU4S2
2590-01-030-3777INTERCHANGEABLE
HYDRAULIC POWER SUP
30021
5962-01-115-2154INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5998-01-119-6749INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5895-01-223-4569INTERCHANGEABLE
UP CONVERTER
4820-01-286-4259INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
30021
5130-01-397-9750INTERCHANGEABLE
DRILL,ELECTRIC,PORTABLE
3002-1
6520-01-501-0560INTERCHANGEABLE
BUR,DENTAL SURGERY
30021
7720-01-582-8235INTERCHANGEABLE
SPRING,VALVE,MUSICAL INSTRUMENT
30021
4820-01-644-7412INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
023-0058-00

Frequently Asked Questions

What is NSN 5930-01-012-8748?

NSN 5930-01-012-8748 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 5930-01-012-8748?

NSN 5930-01-012-8748 has 2 cross-referenced part numbers: LS-29960-1 (Setra Systems, Inc. Dba Gems Sensors), 30021 (Setra Systems, Inc. Dba Gems Sensors).

What NSN replaces 5930-01-012-8748?

There are 12 known substitutes for 5930-01-012-8748: 5910-00-106-0931, 5930-00-936-4572, 5940-00-988-5076 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30021?

Key specifications for 30021: AC Voltage Rating: 120.0 VOLTS MINIMUM FIRST ALTERNATE OPERATING POWER RQMT; Connector Identification: MIL-C-5015D AND 16695; AC Voltage Rating: 240.0 VOLTS MAXIMUM SECOND ALTERNATE OPERATING POWER RQMT; Liquid Type for Which Designed: HYDRAULIC OIL AND LUBRICATING OIL AND SEA WATER AND VARIOUS FUELS AND WATER. 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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