PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U12Coil,electrical

Coto Corp · NSN 5950-00-243-4391 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-243-4391 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-243-4391. Primary manufacturer part number: U12.
Features
  • Coil,electrical — FSC 5950
  • Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING
  • Core Construction: POWDERED SINGLE COMPONENT
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Terminal Type and Quantity: 2 WIRE LEAD
  • Inclosure Type: OPEN
  • Body Outside Diameter: 0.375 INCHES NOMINAL IN
  • Winding Quantity: 1 SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coil,electrical, cataloged under National Stock Number 5950-00-243-4391, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Coto Corp. Government technical data includes 12 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-243-4391
Primary Part NumberU12
Item NameCoil,electrical
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerCoto Corp
StatusACTIVE
Winding Operating Voltage12.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING
Core ConstructionPOWDERED SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Terminal Type and Quantity2 WIRE LEAD
Inclosure TypeOPEN
Body Outside Diameter0.375 INCHES NOMINAL IN
Winding Quantity1 SINGLE COMPONENT
Winding Operating Current125.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Length0.800 INCHES NOMINAL IN
DC Resistance Rating in Ohms600.000 SINGLE COMPONENT SINGLE WINDING
Mounting MethodTERMINAL SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6650-00-106-9592U12 INTERCHANGEABLE
Viewer,monochromatic Reflex Inte
Van Keuren
3110-00-144-8869R-200ZZSD502RDA1P15LY48U INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Precision Division
3010-00-575-6840U1-2 INTERCHANGEABLE
Gear Assembly,speed Decreaser
Roller Bearing Co of America, Inc Div Pic Design
5905-00-681-5551534027-5 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Raytheon Company Dba Raytheon
5120-01-036-66646721-043-0001 INTERCHANGEABLE
Key,reset,combination Lock
Sargent & Greenleaf Inc
Cross-Reference Index
Part NumberManufacturer
U12 Coto Corp (USA)
Related Parts
6650-00-106-9592INTERCHANGEABLE
VIEWER,MONOCHROMATIC REFLEX INTE
U12
3110-00-144-8869INTERCHANGEABLE
BEARING,BALL,ANNULAR
R-200ZZSD502RDA1P15LY48U
3010-00-575-6840INTERCHANGEABLE
GEAR ASSEMBLY,SPEED DECREASER
U1-2
5905-00-681-5551INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
534027-5
5120-01-036-6664INTERCHANGEABLE
KEY,RESET,COMBINATION LOCK
6721-043-0001

Frequently Asked Questions

What is NSN 5950-00-243-4391?

NSN 5950-00-243-4391 is a Coil,electrical, manufactured by Coto Corp, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-243-4391?

NSN 5950-00-243-4391 has 1 cross-referenced part number: U12 (Coto Corp).

What NSN replaces 5950-00-243-4391?

There are 5 known substitutes for 5950-00-243-4391: 6650-00-106-9592, 3110-00-144-8869, 3010-00-575-6840 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of U12?

Key specifications for U12: Winding Operating Voltage: 12.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE WINDING; Core Construction: POWDERED SINGLE COMPONENT; Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING; Terminal Type and Quantity: 2 WIRE LEAD. 12 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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