PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42809Reactor

Freed Transformer Co · NSN 5950-00-470-9375 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-470-9375 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-470-9375. Primary manufacturer part number: 42809.
Features
  • Reactor — FSC 5950
  • Body Width: 6.500 INCHES MAXIMUM IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 5.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Body Length: 9.250 INCHES MAXIMUM IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • DC Resistance Rating in Ohms: 20.000 SINGLE COMPONENT SINGLE WINDING
  • Winding Operating Current: 3.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Inductance Rating: 450.00 MILLIHENRIES MINIMUM AND 1.75 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-470-9375, 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 Freed Transformer Co. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 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
NSN5950-00-470-9375
Primary Part Number42809
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Body Width6.500 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width5.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Length9.250 INCHES MAXIMUM IN
Mounting Facility Quantity4 SINGLE GROUP
DC Resistance Rating in Ohms20.000 SINGLE COMPONENT SINGLE WINDING
Winding Operating Current3.0 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Inductance Rating450.00 MILLIHENRIES MINIMUM AND 1.75 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Mounting MethodFLANGE AND SLOT SINGLE GROUP
Terminal Type and Quantity2 THREADED STUD
Center to Center Distance Between Mounting Facilities Parallel to Length6.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height8.250 INCHES NOMINAL IN
Winding Quantity1 SINGLE COMPONENT
Mounting Slot Width0.438 INCHES NOMINAL SINGLE GROUP IN
Inductance TypeFIXED
Inclosure TypeOPEN
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5996-00-043-0247 INTERCHANGEABLE
Amplifier,electronic Control
5905-00-043-4754 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
2530-00-053-551682830 INTERCHANGEABLE
Cross Arm Pivot
Huck International, Inc. Div Kingston Operations
3110-00-100-059853375 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
1035-00-380-6348271694PC5 INTERCHANGEABLE
Roller
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-00-549-1699 INTERCHANGEABLE
Connector,plug,electrical
6530-00-793-821082830 INTERCHANGEABLE
Tray,catheter
Valley Capital Corporation Dba Vollrath Group Div
2990-00-845-143740253 INTERCHANGEABLE
Pipe,exhaust
Walker Mfg Co
2910-00-997-9815 INTERCHANGEABLE
Pump,fuel,cam Actuated
5835-01-096-364740253 INTERCHANGEABLE
Kit
Crown Audio, Inc. Dba Crown International
Cross-Reference Index
Part NumberManufacturer
42809 PRIMARY Freed Transformer Co (USA)
668-0186-010 Magnetic Design Labs Inc (USA)
668-0186-010 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
668-0186-010 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
450-1116-000 Magnatronix Corporation (USA)
124C59 A.e.york, Llc (USA)
40253 Coast/advanced Chip Magnetics, Inc. (USA)
828-30 Magnetic Windings Company Inc (USA)
HMP3673 Hill Magnetics Inc (USA)
Related Parts
5996-00-043-0247INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL
5905-00-043-4754INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
2530-00-053-5516INTERCHANGEABLE
CROSS ARM PIVOT
82830
3110-00-100-0598INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
53375
1035-00-380-6348INTERCHANGEABLE
ROLLER
271694PC5
5935-00-549-1699INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
6530-00-793-8210INTERCHANGEABLE
TRAY,CATHETER
82830
2990-00-845-1437INTERCHANGEABLE
PIPE,EXHAUST
40253
2910-00-997-9815INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
5835-01-096-3647INTERCHANGEABLE
KIT
40253
5962-01-178-2465INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42809
5945-01-343-0046INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
40253

Frequently Asked Questions

What is NSN 5950-00-470-9375?

NSN 5950-00-470-9375 is a Reactor, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-470-9375?

NSN 5950-00-470-9375 has 9 cross-referenced part numbers: 42809 (Freed Transformer Co), 668-0186-010 (Magnetic Design Labs Inc), 668-0186-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 668-0186-010 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 450-1116-000 (Magnatronix Corporation) and 4 more.

What NSN replaces 5950-00-470-9375?

There are 12 known substitutes for 5950-00-470-9375: 5996-00-043-0247, 5905-00-043-4754, 2530-00-053-5516 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42809?

Key specifications for 42809: Body Width: 6.500 INCHES MAXIMUM IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 5.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; End Item Identification: 485L TACS; Body Length: 9.250 INCHES MAXIMUM IN. 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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