PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9-1918Switch,rotary

Janco Corporation Dba Janco Corp Div Mason Controls · NSN 5930-00-871-5890 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-871-5890 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-871-5890. Primary manufacturer part number: 9-1918.
Features
  • Switch,rotary — FSC 5930
  • Style Designator: TAP, CIRCULAR, BUSHING MOUNT
  • Nonturn Device Type: SLOTTED BUSHING AT 3:00 OCLOCK
  • Pole Quantity: 1 SINGLE SECTION FRONT
  • Switch Actuator Positioning Increment: 45.0 DEGREES SINGLE ACTUATOR
  • Rotor Through Connection Quantity: 1 SINGLE SECTION
  • Switch Actuator Indexing Position Quantity: 2 SINGLE ACTUATOR
  • Thread Length: 0.310 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-871-5890, 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 25 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-871-5890
Primary Part Number9-1918
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerJanco Corporation Dba Janco Corp Div Mason Controls
StatusACTIVE
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Nonturn Device TypeSLOTTED BUSHING AT 3:00 OCLOCK
Pole Quantity1 SINGLE SECTION FRONT
Switch Actuator Positioning Increment45.0 DEGREES SINGLE ACTUATOR
Rotor Through Connection Quantity1 SINGLE SECTION
Switch Actuator Indexing Position Quantity2 SINGLE ACTUATOR
Thread Length0.310 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Shaft Length0.430 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Thread Series DesignatorUNEF SINGLE MOUNTING FACILITY
Contact Voltage Rating in Volts400.0 DC AT SEA LEVEL
Hazardous Locations/environmental ProtectionEXPLOSION PROOF
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Thread Class2A SINGLE MOUNTING FACILITY A
Contact Switching ActionBREAKS BEFORE MAKES SINGLE SECTION REAR
Shaft Flat/slot Angular Location135.0 DEGREES FROM NONTURN DEVICE SINGLE ACTUATOR
Contact Load Current Rating50.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Nominal Thread Size0.375 INCHES SINGLE MOUNTING FACILITY IN
Terminal TypeTAB, SOLDER LUG
Shaft TypeROUND, SLOTTED SINGLE ACTUATOR
Throw Quantity2 SINGLE SECTION REAR
Individual Section Quantity1
Overall Diameter1.150 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5998-00-594-846091918 INTERCHANGEABLE
Circuit Card Assembly
L3harris Technologies, Inc Div Space & Airborne Systems
5961-00-829-0194 INTERCHANGEABLE
Transistor
4730-01-396-8722 INTERCHANGEABLE
Bowl,sediment
4330-01-398-458291918 INTERCHANGEABLE
Bowl,sediment
Parker Hannifin Corp
Cross-Reference Index
Part NumberManufacturer
9-1918 PRIMARY Janco Corporation Dba Janco Corp Div Mason Controls (USA)
Related Parts
5998-00-594-8460INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
91918
5961-00-829-0194INTERCHANGEABLE
TRANSISTOR
4730-01-396-8722INTERCHANGEABLE
BOWL,SEDIMENT
4330-01-398-4582INTERCHANGEABLE
BOWL,SEDIMENT
91918

Frequently Asked Questions

What is NSN 5930-00-871-5890?

NSN 5930-00-871-5890 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 5930-00-871-5890?

NSN 5930-00-871-5890 has 1 cross-referenced part number: 9-1918 (Janco Corporation Dba Janco Corp Div Mason Controls).

What NSN replaces 5930-00-871-5890?

There are 4 known substitutes for 5930-00-871-5890: 5998-00-594-8460, 5961-00-829-0194, 4730-01-396-8722 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9-1918?

Key specifications for 9-1918: Style Designator: TAP, CIRCULAR, BUSHING MOUNT; Nonturn Device Type: SLOTTED BUSHING AT 3:00 OCLOCK; Pole Quantity: 1 SINGLE SECTION FRONT; Switch Actuator Positioning Increment: 45.0 DEGREES SINGLE ACTUATOR. 26 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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