PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1938-1Switch,rotary

Janco Corporation Dba Janco Corp Div Mason Controls · NSN 5930-00-023-5714 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-023-5714 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-023-5714. Primary manufacturer part number: 1938-1.
Features
  • Switch,rotary — FSC 5930
  • Contact Load Current Rating: 5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
  • Style Designator: TAP, CIRCULAR, BUSHING MOUNT
  • Switch Actuator Positioning Increment: 30.0 DEGREES SINGLE ACTUATOR
  • Contact Load Current Rating: 3.0 AMPERES RESISTIVE LOAD AND 2.0 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL
  • Switch Actuator Stop Device Type: FIXED STOP SINGLE ACTUATOR
  • Thread Series Designator: UNS SINGLE MOUNTING FACILITY
  • Contact Voltage Rating in Volts: 115.0 AC AT SEA LEVEL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-023-5714, 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 Janco Corporation Dba Janco Corp Div Mason Controls. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-023-5714
Primary Part Number1938-1
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerJanco Corporation Dba Janco Corp Div Mason Controls
StatusACTIVE
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Switch Actuator Positioning Increment30.0 DEGREES SINGLE ACTUATOR
Contact Load Current Rating3.0 AMPERES RESISTIVE LOAD AND 2.0 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Contact Voltage Rating in Volts115.0 AC AT SEA LEVEL
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Shaft Flat/slot Angular Location180.0 DEGREES FROM NONTURN DEVICE SINGLE ACTUATOR
Flat Height0.210 INCHES NOMINAL SINGLE ACTUATOR IN
Thread Length0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Individual Section Quantity1
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Nominal Thread Size0.469 INCHES SINGLE MOUNTING FACILITY IN
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Terminal TypeTAB, SOLDER LUG
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Overall Diameter2.000 INCHES MAXIMUM IN
Rotor Through Connection Quantity1 SINGLE SECTION
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Throw Quantity12 SINGLE SECTION REAR
Shaft Length0.375 INCHES NOMINAL SINGLE ACTUATOR IN
Thread Class2A SINGLE MOUNTING FACILITY A
Switch Actuator Indexing Position Quantity12 SINGLE ACTUATOR
Contact Voltage Rating in Volts28.0 DC AT SEA LEVEL
Pole Quantity1 SINGLE SECTION FRONT
Nonturn Device TypeSLOTTED BUSHING AT 12:00 OCLOCK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4730-00-358-39725295 INTERCHANGEABLE
Ferrule,brazing,tube Fitting
Sachs-Boge of America
5920-00-504-8634 INTERCHANGEABLE
Fuse,cartridge
5935-00-820-33231938-1 INTERCHANGEABLE
Connector,plug,electrical
Microwave Devices Inc
5910-00-930-2373501185-9 INTERCHANGEABLE
Capacitor,variable,air Dielectri
L3harris Technologies, Inc. Dba Harris Corporation
5360-01-012-35671938-1 INTERCHANGEABLE
Spring,helical,compression
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
3120-01-176-971319381 INTERCHANGEABLE
Bushing,sleeve
Hoffman/new Yorker, Inc.
5998-01-386-639919381 INTERCHANGEABLE
Circuit Card Assembly
Datum Inc Bancomm-Timing Div
5985-01-495-543119381 INTERCHANGEABLE
Attenuator,fixed
Thales Defense & Security Inc Dba Thales Communications Inc
Cross-Reference Index
Part NumberManufacturer
1938-1 PRIMARY Janco Corporation Dba Janco Corp Div Mason Controls (USA)
Related Parts
4730-00-358-3972INTERCHANGEABLE
FERRULE,BRAZING,TUBE FITTING
5295
5920-00-504-8634INTERCHANGEABLE
FUSE,CARTRIDGE
5935-00-820-3323INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
1938-1
5910-00-930-2373INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
501185-9
5360-01-012-3567INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1938-1
3120-01-176-9713INTERCHANGEABLE
BUSHING,SLEEVE
19381
5998-01-386-6399INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
19381
5985-01-495-5431INTERCHANGEABLE
ATTENUATOR,FIXED
19381

Frequently Asked Questions

What is NSN 5930-00-023-5714?

NSN 5930-00-023-5714 is a Switch,rotary, manufactured by Janco Corporation Dba Janco Corp Div Mason Controls, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-023-5714?

NSN 5930-00-023-5714 has 1 cross-referenced part number: 1938-1 (Janco Corporation Dba Janco Corp Div Mason Controls).

What NSN replaces 5930-00-023-5714?

There are 8 known substitutes for 5930-00-023-5714: 4730-00-358-3972, 5920-00-504-8634, 5935-00-820-3323 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1938-1?

Key specifications for 1938-1: Contact Load Current Rating: 5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL; Style Designator: TAP, CIRCULAR, BUSHING MOUNT; Switch Actuator Positioning Increment: 30.0 DEGREES SINGLE ACTUATOR; Contact Load Current Rating: 3.0 AMPERES RESISTIVE LOAD AND 2.0 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL. 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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