PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123103LCSwitch,rotary

Electro Switch Corp. Dba Electro Switch Corp · NSN 5930-01-036-9938 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-036-9938 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-036-9938. Primary manufacturer part number: 123103LC.
Features
  • Switch,rotary — FSC 5930
  • Knob Manufacturer Code: 82121
  • Longest Horizontal Distance Between Mounting Centers: 2.281 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Pole Quantity: 1 EACH SECTION REAR
  • Thread Quantity Per Inch: 24 SINGLE MOUNTING FACILITY
  • Contact Switching Action: BREAKS BEFORE MAKES EACH SECTION REAR
  • Individual Section Quantity: 3
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-01-036-9938, 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 Electro Switch Corp. Dba Electro Switch Corp. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5930-01-036-9938
Primary Part Number123103LC
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerElectro Switch Corp. Dba Electro Switch Corp
StatusCANCELLED
Knob Manufacturer Code82121
Longest Horizontal Distance Between Mounting Centers2.281 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Thread Class2B SINGLE MOUNTING FACILITY
Pole Quantity1 EACH SECTION REAR
Thread Quantity Per Inch24 SINGLE MOUNTING FACILITY
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION REAR
Individual Section Quantity3
Hazardous Locations/environmental ProtectionEXPLOSION PROOF
Longest Vertical Distance Between Mounting Centers2.281 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Shaft Diameter0.375 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Knob Manufacturer Part NumberA
Nominal Thread Size0.190 INCHES SINGLE MOUNTING FACILITY IN
Switch Actuator Positioning Increment90.0 DEGREES SINGLE ACTUATOR
Features ProvidedACTUATOR KNOB
Throw Quantity2 EACH SECTION REAR
First Flat Length0.875 INCHES NOMINAL SINGLE ACTUATOR IN
Style DesignatorTAP, CIRCUIT SELECTOR
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Contact Load Current Rating20.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Shaft TypeROUND, SQUARE, THREADED HOLE SINGLE ACTUATOR
Contact Voltage Rating in Volts500.0 AC AT SEA LEVEL
Mounting Facility PatternFOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY
Mounting MethodTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Shaft Length1.125 INCHES NOMINAL SINGLE ACTUATOR IN
Terminal TypeTAB W/SCREW
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3455-01-365-1665307-19 INTERCHANGEABLE
Cutter,milling,side
Kennametal Inc. Div Kennametal Industrial Products Group
Cross-Reference Index
Part NumberManufacturer
C 30719 Electro Switch Corp. Dba Electro Switch Corp (USA)
123103LC L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation (USA)
123103LC PRIMARY Electro Switch Corp. Dba Electro Switch Corp (USA)
03-02-8218A L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation (USA)
CP5801-2PC24 Bauer, Inc. (USA)
Related Parts
3455-01-365-1665INTERCHANGEABLE
CUTTER,MILLING,SIDE
307-19

Frequently Asked Questions

What is NSN 5930-01-036-9938?

NSN 5930-01-036-9938 is a Switch,rotary, manufactured by Electro Switch Corp. Dba Electro Switch Corp, classified under FSC 5930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5930-01-036-9938?

NSN 5930-01-036-9938 has 5 cross-referenced part numbers: C 30719 (Electro Switch Corp. Dba Electro Switch Corp), 123103LC (L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation), 123103LC (Electro Switch Corp. Dba Electro Switch Corp), 03-02-8218A (L-3 Communications Westwood Corporation Dba Nmp Division Div L3 Westwood Corporation), CP5801-2PC24 (Bauer, Inc.).

What NSN replaces 5930-01-036-9938?

There is 1 known substitute for 5930-01-036-9938: 3455-01-365-1665. Verify interchangeability with system specifications before substitution.

What are the specifications of 123103LC?

Key specifications for 123103LC: Knob Manufacturer Code: 82121; Overall Length: 3.750 INCHES NOMINAL IN; Longest Horizontal Distance Between Mounting Centers: 2.281 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Overall Width: 4.125 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5930-01-036-9938 still in active supply?

NSN 5930-01-036-9938 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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