PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51946Reactor

Northrop Grumman Systems Corporation Div Es Defensive Systems Division · NSN 5950-00-660-9401 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-660-9401 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-660-9401. Primary manufacturer part number: 51946.
Features
  • Reactor — FSC 5950
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Inductance Type: FIXED
  • Inclosure Type: HERMETICALLY SEALED
  • Body Width: 1.000 INCHES NOMINAL IN
  • Terminal Type and Quantity: 2 SOLDER STUD
  • Rating Method: ELECTRICAL 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 5950-00-660-9401, 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 Div Es Defensive Systems Division. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-660-9401
Primary Part Number51946
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Es Defensive Systems Division
StatusACTIVE
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Inductance TypeFIXED
Inclosure TypeHERMETICALLY SEALED
Body Width1.000 INCHES NOMINAL IN
Terminal Type and Quantity2 SOLDER STUD
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Body Height1.375 INCHES NOMINAL IN
DC Resistance Rating in Ohms1000.000 SINGLE COMPONENT SINGLE WINDING
Inductance Rating10.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Thread Quantity Per Inch40 SINGLE GROUP
Winding Quantity1 SINGLE COMPONENT
Winding Operating Current3.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Length1.000 INCHES NOMINAL IN
Distance Between Mounting Facility Centers0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-104-204434220 INTERCHANGEABLE
Seat,valve
Safeguard Powertech Systems
2810-00-165-502134220 INTERCHANGEABLE
Spacer,propeller Shaft
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5130-00-726-7436 INTERCHANGEABLE
Socket,socket Wrench
5355-01-035-619151946 INTERCHANGEABLE
Pointer,dial
L3 Technologies, Inc. Div L3 Keo
5330-01-125-356034220 INTERCHANGEABLE
Gasket
Mcneil Ohio Corp
5962-01-551-511534220 INTERCHANGEABLE
Microcircuit,digital
Aero Defense Corporation
6520-01-616-154234220 INTERCHANGEABLE
Articulator,dental
Whip-Mix Corp
Cross-Reference Index
Part NumberManufacturer
51946 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
34220 Freed Transformer Co (USA)
51946 Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc (USA)
51946 Drs Sustainment Systems, Inc. (USA)
Related Parts
4820-00-104-2044INTERCHANGEABLE
SEAT,VALVE
34220
2810-00-165-5021INTERCHANGEABLE
SPACER,PROPELLER SHAFT
34220
5130-00-726-7436INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5355-01-035-6191INTERCHANGEABLE
POINTER,DIAL
51946
5330-01-125-3560INTERCHANGEABLE
GASKET
34220
5962-01-551-5115INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
34220
6520-01-616-1542INTERCHANGEABLE
ARTICULATOR,DENTAL
34220

Frequently Asked Questions

What is NSN 5950-00-660-9401?

NSN 5950-00-660-9401 is a Reactor, manufactured by Northrop Grumman Systems Corporation Div Es Defensive Systems Division, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-660-9401?

NSN 5950-00-660-9401 has 4 cross-referenced part numbers: 51946 (Northrop Grumman Systems Corporation Div Es Defensive Systems Division), 34220 (Freed Transformer Co), 51946 (Associated Aircraft Manufacturing & Sales, Inc. Dba Associated Aircraft Manufacturing & Sales Inc), 51946 (Drs Sustainment Systems, Inc.).

What NSN replaces 5950-00-660-9401?

There are 7 known substitutes for 5950-00-660-9401: 4820-00-104-2044, 2810-00-165-5021, 5130-00-726-7436 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51946?

Key specifications for 51946: Mounting Method: THREADED STUD(S) SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; Inductance Type: FIXED; Inclosure Type: HERMETICALLY SEALED. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com