PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1800856Reactor

Northrop Grumman Systems Corporation · NSN 5950-00-943-3964 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-943-3964 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-943-3964. Primary manufacturer part number: 1800856.
Features
  • Reactor — FSC 5950
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Hole Diameter: 0.046 INCHES NOMINAL SINGLE GROUP IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Operating Current: 5.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Body Length: 1.125 INCHES NOMINAL IN
  • Body Height: 1.000 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-943-3964, 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 Northrop Grumman Systems Corporation. Government technical data includes 17 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
NSN5950-00-943-3964
Primary Part Number1800856
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Hole Diameter0.046 INCHES NOMINAL SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Operating Current5.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Length1.125 INCHES NOMINAL IN
Body Height1.000 INCHES NOMINAL IN
Inductance TypeFIXED
Winding Quantity1 SINGLE COMPONENT
Terminal Type and Quantity2 PIN
Inclosure TypeHERMETICALLY SEALED
Body Width1.000 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
DC Resistance Rating in Ohms600.000 SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Inductance Rating10.00 HENRY NOMINAL SINGLE COMPONENT SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2805-00-217-8640F400C00503 INTERCHANGEABLE
Crankshaft,engine
Renk America Llc Div Renk America
3130-00-989-32733-70-18X INTERCHANGEABLE
Cap,pillow Block
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
5307-01-378-715960474 FIND NO. 13 INTERCHANGEABLE
Stud,plain
Griswold Industries Dba Cla-Val Co
5305-01-544-151637049 INTERCHANGEABLE
Setscrew
Pulsafeeder Inc a Unit of Idex Div a Unit of Idex Inc
Cross-Reference Index
Part NumberManufacturer
1800856 PRIMARY Northrop Grumman Systems Corporation (USA)
37049 PRIMARY Freed Transformer Co (USA)
Related Parts
2805-00-217-8640INTERCHANGEABLE
CRANKSHAFT,ENGINE
F400C00503
3130-00-989-3273INTERCHANGEABLE
CAP,PILLOW BLOCK
3-70-18X
5307-01-378-7159INTERCHANGEABLE
STUD,PLAIN
60474 FIND NO. 13
5305-01-544-1516INTERCHANGEABLE
SETSCREW
37049

Frequently Asked Questions

What is NSN 5950-00-943-3964?

NSN 5950-00-943-3964 is a Reactor, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-943-3964?

NSN 5950-00-943-3964 has 2 cross-referenced part numbers: 1800856 (Northrop Grumman Systems Corporation), 37049 (Freed Transformer Co).

What NSN replaces 5950-00-943-3964?

There are 4 known substitutes for 5950-00-943-3964: 2805-00-217-8640, 3130-00-989-3273, 5307-01-378-7159 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1800856?

Key specifications for 1800856: Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING; Center to Center Distance Between Mounting Facilities Parallel to Length: 0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Hole Diameter: 0.046 INCHES NOMINAL SINGLE GROUP IN; Center to Center Distance Between Mounting Facilities Parallel to Width: 0.600 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN. 17 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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