PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503-9420-003Reactor

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-221-6590 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-221-6590 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-221-6590. Primary manufacturer part number: 503-9420-003.
Features
  • Reactor — FSC 5950
  • Inductance Rating: 15.00 HENRY MINIMUM AND 22.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.406 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Quantity: 1 SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Terminal Type and Quantity: 2 TAB, SOLDER LUG
  • Inclosure Type: HERMETICALLY SEALED
  • Nominal Thread Size: 0.164 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 5950-00-221-6590, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5950-00-221-6590
Primary Part Number503-9420-003
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Inductance Rating15.00 HENRY MINIMUM AND 22.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.406 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Quantity1 SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity2 TAB, SOLDER LUG
Inclosure TypeHERMETICALLY SEALED
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Mounting Facility Quantity4 SINGLE GROUP
Body Length2.375 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Width0.938 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height2.625 INCHES MAXIMUM IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Winding Operating Current15.0 MILLIAMPERES DC MINIMUM AND 40.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
DC Resistance Rating in Ohms1500.000 SINGLE COMPONENT SINGLE WINDING
Thread Quantity Per Inch32 SINGLE GROUP
Inductance TypeSWINGING
Body Width2.250 INCHES MAXIMUM IN
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Frequency Rating380.0 HERTZ MINIMUM AND 3.52 KILOHERTZ MAXIMUM SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1620-00-083-59095362-5 INTERCHANGEABLE
Cap,end,steering Actuator
Goodrich Aerospace Canada Ltd
5930-00-140-6387 INTERCHANGEABLE
Switch,toggle
5330-00-303-050313456 INTERCHANGEABLE
Gasket
Leslie Controls, Inc. Dba Leslie Controls Inc
5360-00-538-777313456 INTERCHANGEABLE
Spring,helical,compression
B E Aerospace Inc Services Div
5325-00-639-51144002-7K INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
5950-00-646-0798650076 INTERCHANGEABLE
Coil,radio Frequency
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
1630-00-719-554913456 INTERCHANGEABLE
Parts Kit,main Cyli
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6650-00-759-728553625 INTERCHANGEABLE
Polarimeter,triple Field
Pakhoed Distribution Corp
4330-01-470-602013468 INTERCHANGEABLE
Filter Element,fluid
Better Engineering Manufacturing Inc
5998-01-523-038153625 INTERCHANGEABLE
Circuit Card Assembly
Naval Air Warfare Ctr Aircraft Div
Cross-Reference Index
Part NumberManufacturer
53-625 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
503-9420-003 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
13456 Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
1620-00-083-5909INTERCHANGEABLE
CAP,END,STEERING ACTUATOR
5362-5
5930-00-140-6387INTERCHANGEABLE
SWITCH,TOGGLE
5330-00-303-0503INTERCHANGEABLE
GASKET
13456
5360-00-538-7773INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
13456
5325-00-639-5114INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
4002-7K
5950-00-646-0798INTERCHANGEABLE
COIL,RADIO FREQUENCY
650076
1630-00-719-5549INTERCHANGEABLE
PARTS KIT,MAIN CYLI
13456
6650-00-759-7285INTERCHANGEABLE
POLARIMETER,TRIPLE FIELD
53625
4330-01-470-6020INTERCHANGEABLE
FILTER ELEMENT,FLUID
13468
5998-01-523-0381INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
53625
6515-01-577-0077INTERCHANGEABLE
BONE PLATE
223.601

Frequently Asked Questions

What is NSN 5950-00-221-6590?

NSN 5950-00-221-6590 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 5950-00-221-6590?

NSN 5950-00-221-6590 has 3 cross-referenced part numbers: 53-625 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), 503-9420-003 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 13456 (Cessna Aircraft Co Arc Avionics Div).

What NSN replaces 5950-00-221-6590?

There are 11 known substitutes for 5950-00-221-6590: 1620-00-083-5909, 5930-00-140-6387, 5330-00-303-0503 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 503-9420-003?

Key specifications for 503-9420-003: Inductance Rating: 15.00 HENRY MINIMUM AND 22.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING; Center to Center Distance Between Mounting Facilities Parallel to Length: 1.406 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Winding Quantity: 1 SINGLE COMPONENT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP. 20 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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