PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21401Reactor

Basler Electric Co · NSN 5950-00-553-5510 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-553-5510 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-553-5510. Primary manufacturer part number: 21401.
Features
  • Reactor — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Terminal Type and Quantity: 2 STANDOFF, SOLDER LUG
  • Body Length: 2.750 INCHES NOMINAL IN
  • DC Resistance Rating in Ohms: 100.000 SINGLE COMPONENT SINGLE WINDING
  • Reliability Indicator: NOT ESTABLISHED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-553-5510, 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 Basler Electric Co. Government technical data includes 19 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-553-5510
Primary Part Number21401
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBasler Electric Co
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Terminal Type and Quantity2 STANDOFF, SOLDER LUG
Body Length2.750 INCHES NOMINAL IN
DC Resistance Rating in Ohms100.000 SINGLE COMPONENT SINGLE WINDING
Reliability IndicatorNOT ESTABLISHED
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width3.375 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inductance Rating4.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Operating Current175.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Winding Quantity1 SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Inductance TypeFIXED
Body Height3.812 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-623-5408PM21401 INTERCHANGEABLE
Screw,self Tapping
Mason Electric Co. Dba Mason Controls
5330-00-800-2631 INTERCHANGEABLE
Packing,preformed
5975-01-067-25078225 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5998-01-072-2464 INTERCHANGEABLE
Circuit Card Assembly
3120-01-158-535921-401 INTERCHANGEABLE
Bearing Half,sleeve
Rix Industries
3020-01-199-465821401 INTERCHANGEABLE
Port Head Actuator
Moog Inc. Dba Ampac-Isp Corp
6240-01-313-6864F40T12-48/PRS/SPECTRUMLITE/28M INTERCHANGEABLE
Lamp,fluorescent
Westron Corporation Dba Westron Lighting
7510-01-435-853741512 INTERCHANGEABLE
Portfolio
Franklin Covey Co Government Group Products
Cross-Reference Index
Part NumberManufacturer
21401 Basler Electric Co (USA)
812C1 Emerson Electric Co White-Rodgers Div (USA)
1219893 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
43293 Freed Transformer Co (USA)
Related Parts
5305-00-623-5408INTERCHANGEABLE
SCREW,SELF TAPPING
PM21401
5330-00-800-2631INTERCHANGEABLE
PACKING,PREFORMED
5975-01-067-2507INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
8225
5998-01-072-2464INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3120-01-158-5359INTERCHANGEABLE
BEARING HALF,SLEEVE
21-401
3020-01-199-4658INTERCHANGEABLE
PORT HEAD ACTUATOR
21401
6240-01-313-6864INTERCHANGEABLE
LAMP,FLUORESCENT
F40T12-48/PRS/SPECTRUMLITE/28M
7510-01-435-8537INTERCHANGEABLE
PORTFOLIO
41512

Frequently Asked Questions

What is NSN 5950-00-553-5510?

NSN 5950-00-553-5510 is a Reactor, manufactured by Basler Electric Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-553-5510?

NSN 5950-00-553-5510 has 4 cross-referenced part numbers: 21401 (Basler Electric Co), 812C1 (Emerson Electric Co White-Rodgers Div), 1219893 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 43293 (Freed Transformer Co).

What NSN replaces 5950-00-553-5510?

There are 8 known substitutes for 5950-00-553-5510: 5305-00-623-5408, 5330-00-800-2631, 5975-01-067-2507 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21401?

Key specifications for 21401: Mounting Facility Quantity: 4 SINGLE GROUP; Thread Quantity Per Inch: 32 SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Terminal Type and Quantity: 2 STANDOFF, SOLDER LUG. 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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