PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51131Switch,rotary

Mason Electric Co. Dba Mason Controls · NSN 5930-00-296-6027 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-296-6027 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-296-6027. Primary manufacturer part number: 51131.
Features
  • Switch,rotary — FSC 5930
  • Throw Quantity: 3 EACH SECTION PERIPHERY
  • Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY
  • Overall Diameter: 1.875 INCHES NOMINAL IN
  • Switch Actuator Indexing Position Quantity: 3 SINGLE ACTUATOR
  • Switch Actuator Stop Device Type: FIXED STOP SINGLE ACTUATOR
  • Individual Section Quantity: 2
  • 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 5930-00-296-6027, 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 Mason Electric Co. Dba Mason Controls. Government technical data includes 24 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
NSN5930-00-296-6027
Primary Part Number51131
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusACTIVE
Throw Quantity3 EACH SECTION PERIPHERY
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Overall Diameter1.875 INCHES NOMINAL IN
Switch Actuator Indexing Position Quantity3 SINGLE ACTUATOR
Switch Actuator Stop Device TypeFIXED STOP SINGLE ACTUATOR
Individual Section Quantity2
Contact Voltage Rating in Volts115.0 AC AT SEA LEVEL
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Contact Switching ActionBREAKS BEFORE MAKES EACH SECTION PERIPHERY
Switch Contact Basic DesignNONPILE-UP SYMMETRICAL
Terminal TypeSCREW
Nominal Thread Size0.469 INCHES SINGLE MOUNTING FACILITY IN
Shaft Length0.531 INCHES NOMINAL SINGLE ACTUATOR IN
Switch Actuator Positioning Increment45.0 DEGREES SINGLE ACTUATOR
Shaft TypeROUND SINGLE ACTUATOR
Pole Quantity1 EACH SECTION PERIPHERY
Contact Load Current Rating75.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
Nonturn Device TypeSLOTTED BUSHING AT 12:00 OCLOCK
Hazardous Locations/environmental ProtectionDUSTPROOF
Thread Length0.469 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Style DesignatorTAP, CIRCULAR, BUSHING MOUNT
Thread Class2A SINGLE MOUNTING FACILITY A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5136-00-156-3009 INTERCHANGEABLE
Chasers,thread Cutting
4320-00-159-080251131 INTERCHANGEABLE
Pump,axial Pistons
Parker Hannifin Corporation Div Hydraulic Systems Division
7220-00-190-0721 INTERCHANGEABLE
Tile,vinyl Resin
1680-00-217-301451131 INTERCHANGEABLE
Ram
L3harris Technologies, Inc Div Space & Airborne Systems
5815-00-356-3477 INTERCHANGEABLE
Plate Stop
5930-00-678-9200 INTERCHANGEABLE
Switch,pressure
6220-00-897-5856920110 INTERCHANGEABLE
Lens,light
Betts Industries, Inc.
4820-01-060-254360812-1 INTERCHANGEABLE
Valve,float
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Cross-Reference Index
Part NumberManufacturer
51131 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
Related Parts
5136-00-156-3009INTERCHANGEABLE
CHASERS,THREAD CUTTING
4320-00-159-0802INTERCHANGEABLE
PUMP,AXIAL PISTONS
51131
7220-00-190-0721INTERCHANGEABLE
TILE,VINYL RESIN
1680-00-217-3014INTERCHANGEABLE
RAM
51131
5815-00-356-3477INTERCHANGEABLE
PLATE STOP
5930-00-678-9200INTERCHANGEABLE
SWITCH,PRESSURE
6220-00-897-5856INTERCHANGEABLE
LENS,LIGHT
920110
4820-01-060-2543INTERCHANGEABLE
VALVE,FLOAT
60812-1

Frequently Asked Questions

What is NSN 5930-00-296-6027?

NSN 5930-00-296-6027 is a Switch,rotary, manufactured by Mason Electric Co. Dba Mason Controls, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-296-6027?

NSN 5930-00-296-6027 has 1 cross-referenced part number: 51131 (Mason Electric Co. Dba Mason Controls).

What NSN replaces 5930-00-296-6027?

There are 8 known substitutes for 5930-00-296-6027: 5136-00-156-3009, 4320-00-159-0802, 7220-00-190-0721 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51131?

Key specifications for 51131: Throw Quantity: 3 EACH SECTION PERIPHERY; Thread Quantity Per Inch: 32 SINGLE MOUNTING FACILITY; Overall Diameter: 1.875 INCHES NOMINAL IN; Switch Actuator Indexing Position Quantity: 3 SINGLE ACTUATOR. 25 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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