PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6312-6Switch,rotary

Mason Electric Co. Dba Mason Controls · NSN 5930-00-939-1855 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-939-1855 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-939-1855. Primary manufacturer part number: 6312-6.
Features
  • Switch,rotary — FSC 5930
  • Contact Load Current Rating: 500.0 MILLIAMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL
  • Thread Class: 2A SINGLE MOUNTING FACILITY A
  • Switch Actuator Indexing Position Quantity: 2 SINGLE ACTUATOR
  • Nonturn Device Type: SLOTTED BUSHING AT 12:00 OCLOCK
  • Nominal Thread Size: 0.469 INCHES SINGLE MOUNTING FACILITY IN
  • Shaft Diameter: 0.250 INCHES NOMINAL SINGLE ACTUATOR IN
  • Contact Voltage Rating in Volts: 26.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Switch,rotary, cataloged under National Stock Number 5930-00-939-1855, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-939-1855
Primary Part Number6312-6
Item NameSwitch,rotary
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMason Electric Co. Dba Mason Controls
StatusACTIVE
Contact Load Current Rating500.0 MILLIAMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Thread Class2A SINGLE MOUNTING FACILITY A
Switch Actuator Indexing Position Quantity2 SINGLE ACTUATOR
Nonturn Device TypeSLOTTED BUSHING AT 12:00 OCLOCK
Nominal Thread Size0.469 INCHES SINGLE MOUNTING FACILITY IN
Shaft Diameter0.250 INCHES NOMINAL SINGLE ACTUATOR IN
Contact Voltage Rating in Volts26.0 HIGHEST AC VOLTAGE RATING AT SEA LEVEL
Individual Section Quantity2
Flat Height0.216 INCHES NOMINAL SINGLE ACTUATOR IN
Terminal TypeWIRE LEAD
Shaft Length0.500 INCHES NOMINAL SINGLE ACTUATOR IN
Thread Length0.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Shaft TypeROUND, FLATTED SINGLE ACTUATOR
Style DesignatorCIRCULAR WAFER, BUSHING MOUNT
Switch Contact Basic DesignNONPILE-UP NONSYMMETRICAL
Thread Quantity Per Inch32 SINGLE MOUNTING FACILITY
Thread Series DesignatorUNS SINGLE MOUNTING FACILITY
Mounting MethodTHREADED BUSHING SINGLE MOUNTING FACILITY
Switch Actuator Stop Device TypeFIXED-ADJUSTABLE STOPS SINGLE ACTUATOR
First Flat Length0.450 INCHES NOMINAL SINGLE ACTUATOR IN
Contact Load Current Rating50.0 MILLIAMPERES RESISTIVE LOAD LOWEST AC VOLTAGE RATING AT SEA LEVEL
Contact Voltage Rating in Volts11.8 LOWEST AC VOLTAGE RATING AT SEA LEVEL
Overall Diameter1.470 INCHES NOMINAL IN
Switch Actuator Positioning Increment30.0 DEGREES SINGLE ACTUATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-699-700663126 INTERCHANGEABLE
Nut,self-Locking,spline
Hamilton Sundstrand Corporation Dba Collins Aerospace
6680-01-021-017163126 INTERCHANGEABLE
Meter,gas Volume,wet Test
Precision Scientific Petroleum Instruments Co
5975-01-593-122463126 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
6312-6 PRIMARY Mason Electric Co. Dba Mason Controls (USA)
Related Parts
5310-00-699-7006INTERCHANGEABLE
NUT,SELF-LOCKING,SPLINE
63126
6680-01-021-0171INTERCHANGEABLE
METER,GAS VOLUME,WET TEST
63126
5975-01-593-1224INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
63126

Frequently Asked Questions

What is NSN 5930-00-939-1855?

NSN 5930-00-939-1855 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 5930-00-939-1855?

NSN 5930-00-939-1855 has 1 cross-referenced part number: 6312-6 (Mason Electric Co. Dba Mason Controls).

What NSN replaces 5930-00-939-1855?

There are 3 known substitutes for 5930-00-939-1855: 5310-00-699-7006, 6680-01-021-0171, 5975-01-593-1224. Verify interchangeability with system specifications before substitution.

What are the specifications of 6312-6?

Key specifications for 6312-6: Contact Load Current Rating: 500.0 MILLIAMPERES RESISTIVE LOAD HIGHEST AC VOLTAGE RATING AT SEA LEVEL; Thread Class: 2A SINGLE MOUNTING FACILITY A; Switch Actuator Indexing Position Quantity: 2 SINGLE ACTUATOR; Nonturn Device Type: SLOTTED BUSHING AT 12:00 OCLOCK. 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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