PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40731-1Switch,rotary

The Dewey Electronics Corporation · NSN 5930-00-238-6271 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-238-6271 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-238-6271. Primary manufacturer part number: 40731-1.
Features
  • Switch,rotary — FSC 5930
  • Switch Actuator Stop Device Type: FIXED STOP SINGLE ACTUATOR
  • Detent Rotational Torque Range: +1.000 TO 6.000 INCH-POUNDS SINGLE ACTUATOR IN
  • Style Designator: CIRCULAR WAFER, BUSHING MOUNT
  • Thread Series Designator: UNEF SINGLE MOUNTING FACILITY
  • Switch Contact Basic Design: NONPILE-UP SYMMETRICAL
  • Switch Actuator Positioning Increment: 30.0 DEGREES SINGLE ACTUATOR
  • Contact Load Current Rating: 500.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-238-6271, 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 The Dewey Electronics Corporation. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Active.

Technical Specifications
ParameterValue
NSN5930-00-238-6271
Primary Part Number40731-1
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerThe Dewey Electronics Corporation
StatusACTIVE
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Detent Rotational Torque Range+1.000 TO 6.000 INCH-POUNDS SINGLE ACTUATOR IN
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Switch Actuator Positioning Increment30.0 DEGREES SINGLE ACTUATOR
Contact Load Current Rating500.0 MILLIAMPERES RESISTIVE LOAD AND 50.0 MILLIAMPERES INDUCTIVE LOAD DC AT SEA LEVEL
Test Data Document81349-MIL-S-3786/3 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Contact Switching ActionMAKES BEFORE BREAKS SINGLE SECTION REAR
Contact Load Current Rating50.0 MILLIAMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL
Contact Load Current Rating225.0 MILLIAMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Terminal TypeTAB, SOLDER LUG
Mounting MethodTHREADED BUSHING WITH PANEL SEAL SINGLE MOUNTING FACILITY
Flat Height0.211 INCHES MINIMUM AND 0.221 INCHES MAXIMUM SINGLE ACTUATOR IN
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Shaft Diameter0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR IN
Shaft Length0.797 INCHES MINIMUM AND 0.827 INCHES MAXIMUM SINGLE ACTUATOR IN
Operating Temp Range-65.0 TO 85.0 CELSIUS DEGC
Nonturn Device TypeFLATTED BUSHING AT 3:00 OCLOCK
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY IN
Contact Voltage Rating in Volts115.0 LOWEST AC VOLTAGE RATING AT SEA LEVEL
Overall Diameter1.438 INCHES MAXIMUM IN
Individual Section Quantity1
Switch Actuator Indexing Position Quantity11 SINGLE ACTUATOR
Contact Voltage Rating in Volts300.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Thread Length0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Pole Quantity1 SINGLE SECTION REAR
Contact Voltage Rating in Volts28.0 DC AT SEA LEVEL
Thread Class2A SINGLE MOUNTING FACILITY A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3020-01-316-0188P14-3-192-C INTERCHANGEABLE
Gear,antibacklash,spur
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
40731-1 PRIMARY The Dewey Electronics Corporation (USA)
269972F1 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
40731-1 Cts Corp of California Dba Cts Electronics Corp Paso Robles Div Electromechanical Group (USA)
Related Parts
3020-01-316-0188INTERCHANGEABLE
GEAR,ANTIBACKLASH,SPUR
P14-3-192-C

Frequently Asked Questions

What is NSN 5930-00-238-6271?

NSN 5930-00-238-6271 is a Switch,rotary, manufactured by The Dewey Electronics Corporation, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-238-6271?

NSN 5930-00-238-6271 has 3 cross-referenced part numbers: 40731-1 (The Dewey Electronics Corporation), 269972F1 (Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch), 40731-1 (Cts Corp of California Dba Cts Electronics Corp Paso Robles Div Electromechanical Group).

What NSN replaces 5930-00-238-6271?

There is 1 known substitute for 5930-00-238-6271: 3020-01-316-0188. Verify interchangeability with system specifications before substitution.

What are the specifications of 40731-1?

Key specifications for 40731-1: Switch Actuator Stop Device Type: FIXED STOP SINGLE ACTUATOR; Detent Rotational Torque Range: +1.000 TO 6.000 INCH-POUNDS SINGLE ACTUATOR IN; Style Designator: CIRCULAR WAFER, BUSHING MOUNT; Thread Series Designator: UNEF SINGLE MOUNTING FACILITY. 30 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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