PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125108LBSwitch,rotary

Electro Switch Corp. Dba Electro Switch Corp · NSN 5930-00-556-0400 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-556-0400 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-556-0400. Primary manufacturer part number: 125108LB.
Features
  • Switch,rotary — FSC 5930
  • Hazardous Locations/environmental Protection: EXPLOSION PROOF
  • Pole Quantity: 1 EACH SECTION FRONT
  • Unthreaded Mounting Hole Diameter: 0.410 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Contact Voltage Rating in Volts: 500.0 AC AT SEA LEVEL
  • Switch Actuator Positioning Increment: 90.0 DEGREES SINGLE ACTUATOR
  • Throw Quantity: 2 EACH SECTION FRONT
  • Flat Height: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-556-0400, 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 25 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-556-0400
Primary Part Number125108LB
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerElectro Switch Corp. Dba Electro Switch Corp
StatusACTIVE
Hazardous Locations/environmental ProtectionEXPLOSION PROOF
Pole Quantity1 EACH SECTION FRONT
Unthreaded Mounting Hole Diameter0.410 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Contact Voltage Rating in Volts500.0 AC AT SEA LEVEL
Switch Actuator Positioning Increment90.0 DEGREES SINGLE ACTUATOR
Throw Quantity2 EACH SECTION FRONT
Flat Height0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Shaft TypeROUND, FLATTED, THREADED HOLE SINGLE ACTUATOR
Mounting Facility PatternFOUR POSITION RECTANGULAR SINGLE MOUNTING FACILITY
Shaft Length1.375 INCHES NOMINAL SINGLE ACTUATOR IN
Knob Manufacturer Code82121
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION FRONT
Switch Actuator Indexing Position Quantity2 SINGLE ACTUATOR
Contact Load Current Rating60.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Shaft Diameter0.375 INCHES NOMINAL SINGLE ACTUATOR IN
Style DesignatorTAP, CIRCUIT SELECTOR
First Flat Length1.125 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Individual Section Quantity4
Knob Manufacturer Part Number9100-6
Longest Vertical Distance Between Mounting Centers3.781 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Features ProvidedACTUATOR KNOB
Longest Horizontal Distance Between Mounting Centers3.781 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Terminal TypeTAB, SOLDER LUG
Mounting MethodUNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4935-00-262-444291064 INTERCHANGEABLE
Gyro Air Gage Equipment
Lockheed Martin Corp Electronics and Missiles Div
4720-00-307-0395AL581-31 INTERCHANGEABLE
Hose Assembly,air Duct
Hbd Industries, Inc
2640-01-028-5316193 INTERCHANGEABLE
Repair Kit,puncture,pneumatic Ti
Remaco Inc
5340-01-435-1260 INTERCHANGEABLE
Cover,access
4940-01-486-5272 INTERCHANGEABLE
Parts Kit,spray Gun
Cross-Reference Index
Part NumberManufacturer
125108LB PRIMARY Electro Switch Corp. Dba Electro Switch Corp (USA)
91064 Electro Switch Corp. Dba Electro Switch Corp (USA)
Related Parts
4935-00-262-4442INTERCHANGEABLE
GYRO AIR GAGE EQUIPMENT
91064
4720-00-307-0395INTERCHANGEABLE
HOSE ASSEMBLY,AIR DUCT
AL581-31
2640-01-028-5316INTERCHANGEABLE
REPAIR KIT,PUNCTURE,PNEUMATIC TI
193
5340-01-435-1260INTERCHANGEABLE
COVER,ACCESS
4940-01-486-5272INTERCHANGEABLE
PARTS KIT,SPRAY GUN

Frequently Asked Questions

What is NSN 5930-00-556-0400?

NSN 5930-00-556-0400 is a Switch,rotary, manufactured by Electro Switch Corp. Dba Electro Switch Corp, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-556-0400?

NSN 5930-00-556-0400 has 2 cross-referenced part numbers: 125108LB (Electro Switch Corp. Dba Electro Switch Corp), 91064 (Electro Switch Corp. Dba Electro Switch Corp).

What NSN replaces 5930-00-556-0400?

There are 5 known substitutes for 5930-00-556-0400: 4935-00-262-4442, 4720-00-307-0395, 2640-01-028-5316 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125108LB?

Key specifications for 125108LB: Overall Length: 9.281 INCHES NOMINAL IN; Overall Width: 4.750 INCHES NOMINAL IN; Overall Height: 4.750 INCHES NOMINAL IN; Hazardous Locations/environmental Protection: EXPLOSION PROOF. 28 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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