PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T166Reactor

Electronic Transformer Corp Div Electronic Transformer Corporation · NSN 5950-00-518-2089 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-518-2089 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-518-2089. Primary manufacturer part number: T166.
Features
  • Reactor — FSC 5950
  • Inclosure Type: FULLY INCLOSED
  • DC Resistance Rating in Ohms: 120.000 SINGLE COMPONENT SINGLE WINDING
  • Winding Operating Current: 300.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Winding Quantity: 1 SINGLE COMPONENT
  • Inductance Rating: 10.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
  • Terminal Type and Quantity: 2 SOLDER STUD
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 4.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-518-2089, 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 Electronic Transformer Corp Div Electronic Transformer Corporation. Government technical data includes 15 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
NSN5950-00-518-2089
Primary Part NumberT166
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerElectronic Transformer Corp Div Electronic Transformer Corporation
StatusACTIVE
Inclosure TypeFULLY INCLOSED
DC Resistance Rating in Ohms120.000 SINGLE COMPONENT SINGLE WINDING
Winding Operating Current300.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Inductance Rating10.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
Terminal Type and Quantity2 SOLDER STUD
Center to Center Distance Between Mounting Facilities Parallel to Length4.312 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Reliability IndicatorNOT ESTABLISHED
Body Length5.000 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Body Width3.875 INCHES NOMINAL IN
Body Height5.000 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width3.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inductance TypeFIXED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5845-00-789-806644581 INTERCHANGEABLE
One Shot
L3harris Technologies, Inc. Div Space and Airborne Systems
3010-01-056-9888402-.250 X .250 INTERCHANGEABLE
Coupling,shaft,flexible
Naugler Engineering Inc
5950-01-347-0132T16-6 INTERCHANGEABLE
Core,electromagnetic Component
Micrometals Inc
4720-01-547-0778T166 INTERCHANGEABLE
Hose Assembly,nonmetallic
W S Darley & Co
Cross-Reference Index
Part NumberManufacturer
T166 PRIMARY Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
Related Parts
5845-00-789-8066INTERCHANGEABLE
ONE SHOT
44581
3010-01-056-9888INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
402-.250 X .250
5950-01-347-0132INTERCHANGEABLE
CORE,ELECTROMAGNETIC COMPONENT
T16-6
4720-01-547-0778INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
T166

Frequently Asked Questions

What is NSN 5950-00-518-2089?

NSN 5950-00-518-2089 is a Reactor, manufactured by Electronic Transformer Corp Div Electronic Transformer Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-518-2089?

NSN 5950-00-518-2089 has 1 cross-referenced part number: T166 (Electronic Transformer Corp Div Electronic Transformer Corporation).

What NSN replaces 5950-00-518-2089?

There are 4 known substitutes for 5950-00-518-2089: 5845-00-789-8066, 3010-01-056-9888, 5950-01-347-0132 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T166?

Key specifications for T166: Inclosure Type: FULLY INCLOSED; DC Resistance Rating in Ohms: 120.000 SINGLE COMPONENT SINGLE WINDING; Winding Operating Current: 300.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING; Winding Quantity: 1 SINGLE COMPONENT. 15 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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