PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-1990Switch,rotary

Janco Corporation Dba Janco Corp Div Mason Controls · NSN 5930-00-818-1377 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-818-1377 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-818-1377. Primary manufacturer part number: 1-1990.
Features
  • Switch,rotary — FSC 5930
  • Shaft Type: ROUND, FLATTED SINGLE ACTUATOR
  • Contact Voltage Rating in Volts: 28.0 DC AT SEA LEVEL
  • Mounting Method: THREADED BUSHING SINGLE MOUNTING FACILITY
  • Contact Load Current Rating: 5.0 AMPERES RESISTIVE LOAD AND 2.5 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL
  • Contact Voltage Rating in Volts: 115.0 AC AT SEA LEVEL
  • Thread Series Designator: UNEF SINGLE MOUNTING FACILITY
  • Pole Quantity: 1 EACH SECTION FRONT
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-818-1377, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-818-1377
Primary Part Number1-1990
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerJanco Corporation Dba Janco Corp Div Mason Controls
StatusACTIVE
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Contact Voltage Rating in Volts28.0 DC AT SEA LEVEL
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AND 2.5 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL
Contact Voltage Rating in Volts115.0 AC AT SEA LEVEL
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Pole Quantity1 EACH SECTION FRONT
Thread Class2A SINGLE MOUNTING FACILITY A
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION FRONT
Throw Quantity3 EACH SECTION FRONT
Thread Length0.437 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Overall Diameter1.150 INCHES NOMINAL IN
Individual Section Quantity9
First Flat Length0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY IN
Flat Height0.210 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Terminal TypeTAB, SOLDER LUG
Switch Actuator Positioning Increment30.0 DEGREES SINGLE ACTUATOR
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Contact Load Current Rating5.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Hazardous Locations/environmental ProtectionDUSTPROOF
Switch Actuator Indexing Position Quantity3 SINGLE ACTUATOR
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Shaft Length0.812 INCHES NOMINAL SINGLE ACTUATOR IN
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
9540-00-251-2683 INTERCHANGEABLE
Channel,structural
5985-00-819-533511992 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Dow-Key Microwave Llc
5340-01-194-938711990 INTERCHANGEABLE
Handle,manual Control
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
6665-01-496-693811990 INTERCHANGEABLE
Detector,gas
Fibrebond Corp
Cross-Reference Index
Part NumberManufacturer
1-1990 Janco Corporation Dba Janco Corp Div Mason Controls (USA)
11-796-02-500 Northrop Grumman Systems Corporation (USA)
Related Parts
9540-00-251-2683INTERCHANGEABLE
CHANNEL,STRUCTURAL
5985-00-819-5335INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
11992
5340-01-194-9387INTERCHANGEABLE
HANDLE,MANUAL CONTROL
11990
6665-01-496-6938INTERCHANGEABLE
DETECTOR,GAS
11990

Frequently Asked Questions

What is NSN 5930-00-818-1377?

NSN 5930-00-818-1377 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 5930-00-818-1377?

NSN 5930-00-818-1377 has 2 cross-referenced part numbers: 1-1990 (Janco Corporation Dba Janco Corp Div Mason Controls), 11-796-02-500 (Northrop Grumman Systems Corporation).

What NSN replaces 5930-00-818-1377?

There are 4 known substitutes for 5930-00-818-1377: 9540-00-251-2683, 5985-00-819-5335, 5340-01-194-9387 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-1990?

Key specifications for 1-1990: Shaft Type: ROUND, FLATTED SINGLE ACTUATOR; Contact Voltage Rating in Volts: 28.0 DC AT SEA LEVEL; Mounting Method: THREADED BUSHING SINGLE MOUNTING FACILITY; Contact Load Current Rating: 5.0 AMPERES RESISTIVE LOAD AND 2.5 AMPERES INDUCTIVE LOAD DC AT SEA LEVEL. 27 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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