PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-78Reactor

Bae Systems Information and Electronic Systems Integration Inc. · NSN 5950-00-147-1476 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-147-1476 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-147-1476. Primary manufacturer part number: 21-78.
Features
  • Reactor — FSC 5950
  • Winding Quantity: 1 SINGLE COMPONENT
  • Distance Between Mounting Facility Centers: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: PARTIALLY INCLOSED, DOUBLE SHELL
  • Winding Operating Current: 35.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Reactor, cataloged under National Stock Number 5950-00-147-1476, 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 Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-147-1476
Primary Part Number21-78
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusCANCELLED
Winding Quantity1 SINGLE COMPONENT
Distance Between Mounting Facility Centers2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypePARTIALLY INCLOSED, DOUBLE SHELL
Winding Operating Current35.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Mounting Facility Quantity2 SINGLE GROUP
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP IN
Inductance Rating8.00 HENRY MAXIMUM SINGLE COMPONENT SINGLE WINDING
Inductance TypeFIXED
DC Resistance Rating in Ohms348.000 SINGLE COMPONENT SINGLE WINDING
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Body Length1.938 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Terminal Type and Quantity2 WIRE LEAD
Body Width1.375 INCHES NOMINAL IN
Body Height1.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
7920-00-133-31676772 INTERCHANGEABLE
Brush,test Tube
Atlanta Brush Co
9540-00-145-8169 INTERCHANGEABLE
Angle,structural
6145-00-155-5262 INTERCHANGEABLE
Braid,wire
5330-00-171-39252178 INTERCHANGEABLE
Seal,plain Encased
Lidgerwood Manufacturing Company Dba Lidgerwood Manufacturing Co Div Lidgerwood Manufacuring Co
5935-00-259-0380491078 INTERCHANGEABLE
Adapter,connector
Naval Ship Systems Command
4730-00-359-9487200 72 H B INTERCHANGEABLE
Clamp,hose
Norma Pennsylvania Inc. Div Breeze Industrial Products
2815-00-364-35323291981 INTERCHANGEABLE
Housing,throttle Co
Rolls-Royce Solutions America Inc
9540-00-580-0987 INTERCHANGEABLE
Angle,structural
5950-00-645-7431 INTERCHANGEABLE
Coil,radio Frequency
9540-00-720-0674 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
21003380-21-338 Thales Components Corp Div Thales Components Corporation (USA)
6772 Emerson Electric Co White-Rodgers Div (USA)
21-78 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
7920-00-133-3167INTERCHANGEABLE
BRUSH,TEST TUBE
6772
9540-00-145-8169INTERCHANGEABLE
ANGLE,STRUCTURAL
6145-00-155-5262INTERCHANGEABLE
BRAID,WIRE
5330-00-171-3925INTERCHANGEABLE
SEAL,PLAIN ENCASED
2178
5935-00-259-0380INTERCHANGEABLE
ADAPTER,CONNECTOR
491078
4730-00-359-9487INTERCHANGEABLE
CLAMP,HOSE
200 72 H B
2815-00-364-3532INTERCHANGEABLE
HOUSING,THROTTLE CO
3291981
9540-00-580-0987INTERCHANGEABLE
ANGLE,STRUCTURAL
5950-00-645-7431INTERCHANGEABLE
COIL,RADIO FREQUENCY
9540-00-720-0674INTERCHANGEABLE
ANGLE,STRUCTURAL
5945-00-911-8078INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4730-00-967-4476INTERCHANGEABLE
BIMETAL ELEMENT ASSEMBLY
2178

Frequently Asked Questions

What is NSN 5950-00-147-1476?

NSN 5950-00-147-1476 is a Reactor, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-147-1476?

NSN 5950-00-147-1476 has 3 cross-referenced part numbers: 21003380-21-338 (Thales Components Corp Div Thales Components Corporation), 6772 (Emerson Electric Co White-Rodgers Div), 21-78 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 5950-00-147-1476?

There are 12 known substitutes for 5950-00-147-1476: 7920-00-133-3167, 9540-00-145-8169, 6145-00-155-5262 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-78?

Key specifications for 21-78: Winding Quantity: 1 SINGLE COMPONENT; Distance Between Mounting Facility Centers: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inclosure Type: PARTIALLY INCLOSED, DOUBLE SHELL; Winding Operating Current: 35.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-147-1476 still in active supply?

NSN 5950-00-147-1476 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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