PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

668-0261-020Reactor

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-01-103-4837 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-103-4837 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-103-4837. Primary manufacturer part number: 668-0261-020.
Features
  • Reactor — FSC 5950
  • Winding Operating Current: 1.2 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Mounting Method: TERMINAL SINGLE GROUP
  • Turn Quantity: 105 SINGLE COMPONENT SINGLE WINDING
  • Winding Quantity: 1 SINGLE COMPONENT
  • Winding Conductor Size: 0.02535 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
  • Inductance Rating: 750.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
  • Reliability Indicator: NOT ESTABLISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-103-4837, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, 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
NSN5950-01-103-4837
Primary Part Number668-0261-020
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Winding Operating Current1.2 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Mounting MethodTERMINAL SINGLE GROUP
Turn Quantity105 SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Winding Conductor Size0.02535 INCHES AMERICAN WIRE GAGE SINGLE COMPONENT SINGLE WINDING IN
Inductance Rating750.00 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Rating MethodELECTRICAL AND WINDING TURNS SINGLE COMPONENT SINGLE WINDING
Body Outside Diameter1.100 INCHES MAXIMUM IN
Maximum Operating Temp100.0 CELSIUS DEGC
Inductance TypeFIXED
Body Length0.550 INCHES MAXIMUM IN
Inclosure TypeFULLY INCLOSED
Terminal Type and Quantity2 WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-233-6415 INTERCHANGEABLE
Drill,twist
5950-00-645-875325600 INTERCHANGEABLE
Coil,telephone
Freed Transformer Co
5905-01-045-281925-600 INTERCHANGEABLE
Resistor,fixed,composition
Gc/waldom Inc
4730-01-275-421825600-1 INTERCHANGEABLE
Coupling Half,quick Disconnect
Spx Fluid Power
Cross-Reference Index
Part NumberManufacturer
668-0261-020 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
25600 Torotel, Inc. Div Torotel Products, Inc. (USA)
T-2366 Hytronics Corp. (USA)
668-0261-020 Prem Magnetics Inc (USA)
06-3115-02 Hisonic, Llc (USA)
Related Parts
5133-00-233-6415INTERCHANGEABLE
DRILL,TWIST
5950-00-645-8753INTERCHANGEABLE
COIL,TELEPHONE
25600
5905-01-045-2819INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
25-600
4730-01-275-4218INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
25600-1

Frequently Asked Questions

What is NSN 5950-01-103-4837?

NSN 5950-01-103-4837 is a Reactor, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-103-4837?

NSN 5950-01-103-4837 has 5 cross-referenced part numbers: 668-0261-020 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 25600 (Torotel, Inc. Div Torotel Products, Inc.), T-2366 (Hytronics Corp.), 668-0261-020 (Prem Magnetics Inc), 06-3115-02 (Hisonic, Llc).

What NSN replaces 5950-01-103-4837?

There are 4 known substitutes for 5950-01-103-4837: 5133-00-233-6415, 5950-00-645-8753, 5905-01-045-2819 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 668-0261-020?

Key specifications for 668-0261-020: Winding Operating Current: 1.2 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING; Mounting Method: TERMINAL SINGLE GROUP; Turn Quantity: 105 SINGLE COMPONENT SINGLE WINDING; Winding Quantity: 1 SINGLE COMPONENT. 14 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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