PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5281Reactor

Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division · NSN 5950-01-445-6960 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-445-6960 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-445-6960. Primary manufacturer part number: 5281.
Features
  • Reactor — FSC 5950
  • Terminal Type and Quantity: 12 WIRE LEAD
  • Rating Method: ELECTRICAL FIRST COMPONENT SINGLE WINDING
  • Inclosure Type: OPEN
  • Inductance Rating: 40.00 MICROHENRIES NOMINAL FIRST COMPONENT SINGLE WINDING
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Quantity: 6 SINGLE COMPONENT
  • Frequency Rating: 15.75 KILOHERTZ NOMINAL SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-445-6960, 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 Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division. Government technical data includes 7 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-445-6960
Primary Part Number5281
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerTransistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division
StatusACTIVE
Terminal Type and Quantity12 WIRE LEAD
Rating MethodELECTRICAL FIRST COMPONENT SINGLE WINDING
Inclosure TypeOPEN
Inductance Rating40.00 MICROHENRIES NOMINAL FIRST COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Winding Quantity6 SINGLE COMPONENT
Frequency Rating15.75 KILOHERTZ NOMINAL SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4820-00-101-5124528 INTERCHANGEABLE
Diaphragm,valve,flat
Sealco Air Controls Inc
5998-00-231-751710182653 INTERCHANGEABLE
Electronic Components Assembly
Raytheon Company Dba Raytheon Co
5360-00-616-0542 INTERCHANGEABLE
Spring,helical,torsion
5935-00-729-87375281 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
9540-00-849-7462 INTERCHANGEABLE
Beam,structural
5998-01-014-5861528-1 INTERCHANGEABLE
Circuit Card Assembly
Marc Alan Group the, Inc
6625-01-042-9758528A OPT 1 INTERCHANGEABLE
Monitor,waveform
Tektronix, Inc.
3439-01-103-9931 INTERCHANGEABLE
Tip,electric Soldering Gun
5962-01-177-073141424 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
1377-01-287-453115024-1 INTERCHANGEABLE
Cartridge,engine Starter
Quantic Industries, Inc. Dba Quantic-Holex
Cross-Reference Index
Part NumberManufacturer
5281 PRIMARY Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division (USA)
41424 Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit (USA)
Related Parts
4820-00-101-5124INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
528
5998-00-231-7517INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
10182653
5360-00-616-0542INTERCHANGEABLE
SPRING,HELICAL,TORSION
5935-00-729-8737INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5281
9540-00-849-7462INTERCHANGEABLE
BEAM,STRUCTURAL
5998-01-014-5861INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
528-1
6625-01-042-9758INTERCHANGEABLE
MONITOR,WAVEFORM
528A OPT 1
3439-01-103-9931INTERCHANGEABLE
TIP,ELECTRIC SOLDERING GUN
5962-01-177-0731INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
41424
1377-01-287-4531INTERCHANGEABLE
CARTRIDGE,ENGINE STARTER
15024-1
6625-01-454-9664INTERCHANGEABLE
ADAPTER,TEST
5281

Frequently Asked Questions

What is NSN 5950-01-445-6960?

NSN 5950-01-445-6960 is a Reactor, manufactured by Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-445-6960?

NSN 5950-01-445-6960 has 2 cross-referenced part numbers: 5281 (Transistor Devices Inc Dba Fernwood Magnetics Div Div Circuitek Division), 41424 (Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit).

What NSN replaces 5950-01-445-6960?

There are 11 known substitutes for 5950-01-445-6960: 4820-00-101-5124, 5998-00-231-7517, 5360-00-616-0542 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5281?

Key specifications for 5281: Terminal Type and Quantity: 12 WIRE LEAD; Rating Method: ELECTRICAL FIRST COMPONENT SINGLE WINDING; Inclosure Type: OPEN; Inductance Rating: 40.00 MICROHENRIES NOMINAL FIRST COMPONENT SINGLE WINDING. 7 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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