PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

167421Reactor

Northrop Grumman Systems Corporation · NSN 5950-01-203-1139 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-203-1139 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-203-1139. Primary manufacturer part number: 167421.
Features
  • Reactor — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Terminal Type and Quantity: 2 SOLDER STUD
  • Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING
  • Inductance Type: FIXED
  • Inclosure Type: FULLY INCLOSED
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 2.880 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-01-203-1139, 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 19 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-01-203-1139
Primary Part Number167421
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity2 SOLDER STUD
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Inductance TypeFIXED
Inclosure TypeFULLY INCLOSED
Center to Center Distance Between Mounting Facilities Parallel to Width2.880 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Body Length2.880 INCHES MAXIMUM IN
Winding Operating Current4.0 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Maximum Operating Temp130.0 CELSIUS DEGC
Winding Quantity1 SINGLE COMPONENT
Body Height1.500 INCHES MAXIMUM IN
Inductance Rating10.60 MICROHENRIES NOMINAL SINGLE COMPONENT SINGLE WINDING
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width1.500 INCHES MAXIMUM IN
Mounting Facility Quantity4 SINGLE GROUP
DC Resistance Rating in Ohms0.012 SINGLE COMPONENT SINGLE WINDING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5940-00-583-9000013-2045-689 INTERCHANGEABLE
Terminal,stud
Itt Cannon Rf Products
3120-00-662-42728746824-01 INTERCHANGEABLE
Bearing,sleeve
Ogden Air Logistics Center
Cross-Reference Index
Part NumberManufacturer
PEI 7126 Precision Electronics, Inc (USA)
TW71429 Magnetika (USA)
167421 PRIMARY Northrop Grumman Systems Corporation (USA)
Related Parts
5940-00-583-9000INTERCHANGEABLE
TERMINAL,STUD
013-2045-689
3120-00-662-4272INTERCHANGEABLE
BEARING,SLEEVE
8746824-01

Frequently Asked Questions

What is NSN 5950-01-203-1139?

NSN 5950-01-203-1139 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 5950-01-203-1139?

NSN 5950-01-203-1139 has 3 cross-referenced part numbers: PEI 7126 (Precision Electronics, Inc), TW71429 (Magnetika), 167421 (Northrop Grumman Systems Corporation).

What NSN replaces 5950-01-203-1139?

There are 2 known substitutes for 5950-01-203-1139: 5940-00-583-9000, 3120-00-662-4272. Verify interchangeability with system specifications before substitution.

What are the specifications of 167421?

Key specifications for 167421: Reliability Indicator: NOT ESTABLISHED; Terminal Type and Quantity: 2 SOLDER STUD; Rating Method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING; Inductance Type: FIXED. 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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