PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19-1954Switch,rotary

Janco Corporation Dba Janco Corp Div Mason Controls · NSN 5930-00-998-4985 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-998-4985 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-998-4985. Primary manufacturer part number: 19-1954.
Features
  • Switch,rotary — FSC 5930
  • Features Provided: PUSH TO TURN
  • Contact Switching Action: BREAKS BEFORE MAKES EACH SECTION REAR
  • Nonturn Device Radius: 0.432 INCHES NOMINAL AT 3:00 OCLOCK IN
  • Overall Diameter: 1.500 INCHES NOMINAL IN
  • Switch Actuator Positioning Increment: 45.0 DEGREES SINGLE ACTUATOR
  • Contact Voltage Rating in Volts: 115.0 AC AT SEA LEVEL
  • Switch Actuator Indexing Position Quantity: 3 SINGLE ACTUATOR
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-998-4985, 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-998-4985
Primary Part Number19-1954
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerJanco Corporation Dba Janco Corp Div Mason Controls
StatusACTIVE
Features ProvidedPUSH TO TURN
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION REAR
Nonturn Device Radius0.432 INCHES NOMINAL AT 3:00 OCLOCK IN
Overall Diameter1.500 INCHES NOMINAL IN
Switch Actuator Positioning Increment45.0 DEGREES SINGLE ACTUATOR
Contact Voltage Rating in Volts115.0 AC AT SEA LEVEL
Switch Actuator Indexing Position Quantity3 SINGLE ACTUATOR
Nonturn Device TypeTAB AT 3:00 OCLOCK
Thread Class2A SINGLE MOUNTING FACILITY A
Shaft Flat/slot Angular Location0.0 DEGREES FROM CONTACT POSITION 1 SINGLE ACTUATOR
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Flat Height0.210 INCHES NOMINAL SINGLE ACTUATOR IN
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION FRONT
Shaft Length0.797 INCHES NOMINAL SINGLE ACTUATOR IN
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Hazardous Locations/environmental ProtectionDUSTPROOF
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AND 2.5 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY IN
Individual Section Quantity2
Thread Length0.430 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Contact Voltage Rating in Volts28.0 DC AT SEA LEVEL
Terminal TypeTAB W/SCREW
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-157-1909109119-24 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
19-1954 PRIMARY Janco Corporation Dba Janco Corp Div Mason Controls (USA)
Related Parts
3110-00-157-1909INTERCHANGEABLE
BEARING,BALL,ANNULAR
109119-24

Frequently Asked Questions

What is NSN 5930-00-998-4985?

NSN 5930-00-998-4985 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 5930-00-998-4985?

NSN 5930-00-998-4985 has 1 cross-referenced part number: 19-1954 (Janco Corporation Dba Janco Corp Div Mason Controls).

What NSN replaces 5930-00-998-4985?

There is 1 known substitute for 5930-00-998-4985: 3110-00-157-1909. Verify interchangeability with system specifications before substitution.

What are the specifications of 19-1954?

Key specifications for 19-1954: Overall Length: 3.612 INCHES NOMINAL IN; Features Provided: PUSH TO TURN; Contact Switching Action: BREAKS BEFORE MAKES EACH SECTION REAR; Nonturn Device Radius: 0.432 INCHES NOMINAL AT 3:00 OCLOCK IN. 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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