PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11143Reactor

Electro Engineering Works Inc · NSN 5950-00-993-7431 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-993-7431 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-993-7431. Primary manufacturer part number: 11143.
Features
  • Reactor — FSC 5950
  • DC Resistance Rating in Ohms: 250.000 SINGLE COMPONENT SINGLE WINDING
  • Terminal Type and Quantity: 2 STANDOFF, SOLDER LUG
  • Inclosure Type: HERMETICALLY SEALED
  • Winding Quantity: 1 SINGLE COMPONENT
  • Body Height: 2.938 INCHES NOMINAL IN
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Nominal Thread Size: 0.138 INCHES SINGLE GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-993-7431, 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 Electro Engineering Works Inc. Government technical data includes 19 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-993-7431
Primary Part Number11143
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerElectro Engineering Works Inc
StatusACTIVE
DC Resistance Rating in Ohms250.000 SINGLE COMPONENT SINGLE WINDING
Terminal Type and Quantity2 STANDOFF, SOLDER LUG
Inclosure TypeHERMETICALLY SEALED
Winding Quantity1 SINGLE COMPONENT
Body Height2.938 INCHES NOMINAL IN
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Body Length2.313 INCHES NOMINAL IN
Body Width2.063 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Center to Center Distance Between Mounting Facilities Parallel to Length1.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.688 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current100.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Inductance Rating5.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Inductance TypeFIXED
Mounting Facility Quantity4 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-121-349911143 INTERCHANGEABLE
Washer,flat
Aerol Llc
3010-00-294-7517 INTERCHANGEABLE
Coupling Half,shaft
5310-00-541-226511143 INTERCHANGEABLE
Washer,flat
Jetronic Industries, Inc. Dba Jetronic Industries, Inc. Div Contracts
5935-00-992-2456114-257-0001 INTERCHANGEABLE
Connector,receptacle,electrical
Northrop Grumman Systems Corporation
5330-01-119-582511143 INTERCHANGEABLE
Gasket
Westerbeke Corporation
3230-01-234-746174031 INTERCHANGEABLE
Blade,circular Saw,woodcutting
Dml Industrial Products Sub of Vermont American Corp Forest City Tool Div
3020-01-328-5695 INTERCHANGEABLE
Sprocket Wheel
4240-01-378-452511143 INTERCHANGEABLE
Curtain,safety,industrial
Goff's Enterprises, Inc. Dba Goffs Enterprises Inc
5306-01-411-0119021363 INTERCHANGEABLE
Bolt,machine
Parker-Hannifin Corp Div Hydraulic Pump/motor Division
5995-01-442-181111143 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Astrocom Electronics Inc
Cross-Reference Index
Part NumberManufacturer
11143 PRIMARY Electro Engineering Works Inc (USA)
1023801REVH Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5310-00-121-3499INTERCHANGEABLE
WASHER,FLAT
11143
3010-00-294-7517INTERCHANGEABLE
COUPLING HALF,SHAFT
5310-00-541-2265INTERCHANGEABLE
WASHER,FLAT
11143
5935-00-992-2456INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
114-257-0001
5330-01-119-5825INTERCHANGEABLE
GASKET
11143
3230-01-234-7461INTERCHANGEABLE
BLADE,CIRCULAR SAW,WOODCUTTING
74031
3020-01-328-5695INTERCHANGEABLE
SPROCKET WHEEL
4240-01-378-4525INTERCHANGEABLE
CURTAIN,SAFETY,INDUSTRIAL
11143
5306-01-411-0119INTERCHANGEABLE
BOLT,MACHINE
021363
5995-01-442-1811INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
11143
6540-01-493-7653INTERCHANGEABLE
BULB,HALOGEN
11143
6240-01-509-0278INTERCHANGEABLE
LAMP,INCANDESCENT
11143

Frequently Asked Questions

What is NSN 5950-00-993-7431?

NSN 5950-00-993-7431 is a Reactor, manufactured by Electro Engineering Works Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-993-7431?

NSN 5950-00-993-7431 has 2 cross-referenced part numbers: 11143 (Electro Engineering Works Inc), 1023801REVH (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 5950-00-993-7431?

There are 12 known substitutes for 5950-00-993-7431: 5310-00-121-3499, 3010-00-294-7517, 5310-00-541-2265 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11143?

Key specifications for 11143: DC Resistance Rating in Ohms: 250.000 SINGLE COMPONENT SINGLE WINDING; Terminal Type and Quantity: 2 STANDOFF, SOLDER LUG; Inclosure Type: HERMETICALLY SEALED; Winding Quantity: 1 SINGLE COMPONENT. 19 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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