PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19983Reactor

Freed Transformer Co · NSN 5950-00-645-1307 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-1307 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-1307. Primary manufacturer part number: 19983.
Features
  • Reactor — FSC 5950
  • Inclosure Type: HERMETICALLY SEALED
  • Maximum Operating Temp: 65.0 CELSIUS DEGC
  • DC Resistance Rating in Ohms: 45.000 SINGLE COMPONENT SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Quantity: 1 SINGLE COMPONENT
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-645-1307, 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 21 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-1307
Primary Part Number19983
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Inclosure TypeHERMETICALLY SEALED
Maximum Operating Temp65.0 CELSIUS DEGC
DC Resistance Rating in Ohms45.000 SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Width2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Quantity1 SINGLE COMPONENT
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length3.438 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.250 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Thread Quantity Per Inch20 SINGLE GROUP
Inductance Rating4.50 HENRY MINIMUM SINGLE COMPONENT SINGLE WINDING
Mounting Facility Quantity4 SINGLE GROUP
Inductance TypeFIXED
Winding Operating Current400.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Width4.000 INCHES NOMINAL IN
Body Height4.000 INCHES NOMINAL IN
Body Length4.500 INCHES NOMINAL IN
Terminal Type and Quantity2 STANDOFF INSULATOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2520-00-354-055538633D INTERCHANGEABLE
Plate,floating,clut
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
6145-01-150-60185274C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
5360-01-322-8624I-1284-B ITEM 19983-A1 INTERCHANGEABLE
Spring,helical,compression
Schneider Electric Systems Usa Inc
5360-01-375-641919983 INTERCHANGEABLE
Spring,helical,compression
Schneider Electric Systems Usa Inc
Cross-Reference Index
Part NumberManufacturer
19983 PRIMARY Freed Transformer Co (USA)
FR1050 Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
2520-00-354-0555INTERCHANGEABLE
PLATE,FLOATING,CLUT
38633D
6145-01-150-6018INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5274C
5360-01-322-8624INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
I-1284-B ITEM 19983-A1
5360-01-375-6419INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
19983

Frequently Asked Questions

What is NSN 5950-00-645-1307?

NSN 5950-00-645-1307 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 5950-00-645-1307?

NSN 5950-00-645-1307 has 2 cross-referenced part numbers: 19983 (Freed Transformer Co), FR1050 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5950-00-645-1307?

There are 4 known substitutes for 5950-00-645-1307: 2520-00-354-0555, 6145-01-150-6018, 5360-01-322-8624 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19983?

Key specifications for 19983: Inclosure Type: HERMETICALLY SEALED; Maximum Operating Temp: 65.0 CELSIUS DEGC; DC Resistance Rating in Ohms: 45.000 SINGLE COMPONENT SINGLE WINDING; Center to Center Distance Between Mounting Facilities Parallel to Width: 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 22 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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