PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20477Reactor

Astec America Inc. · NSN 5950-00-220-9931 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-220-9931 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-220-9931. Primary manufacturer part number: 20477.
Features
  • Reactor — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Body Length: 2.500 INCHES NOMINAL IN
  • Frequency Rating: 114.0 HERTZ MINIMUM AND 126.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Inclosure Type: OPEN
  • Winding Quantity: 1 SINGLE COMPONENT
  • Inductance Rating: 22.70 MILLIHENRIES MINIMUM AND 27.30 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
  • Body Height: 2.000 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 5950-00-220-9931, 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 Astec America Inc.. Government technical data includes 19 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-220-9931
Primary Part Number20477
Item NameReactor
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAstec America Inc.
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Body Length2.500 INCHES NOMINAL IN
Frequency Rating114.0 HERTZ MINIMUM AND 126.0 HERTZ MAXIMUM SINGLE COMPONENT
Inclosure TypeOPEN
Winding Quantity1 SINGLE COMPONENT
Inductance Rating22.70 MILLIHENRIES MINIMUM AND 27.30 MILLIHENRIES MAXIMUM SINGLE COMPONENT SINGLE WINDING
Body Height2.000 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Body Width2.060 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
DC Resistance Rating in Ohms0.700 SINGLE COMPONENT SINGLE WINDING
Inductance TypeSWINGING
Terminal Type and Quantity2 SOLDER STUD
Mounting Hole Diameter0.208 INCHES NOMINAL SINGLE GROUP IN
Winding Operating Current1.8 AMPERES DC MAXIMUM SINGLE COMPONENT SINGLE WINDING
Rating MethodELECTRICAL SINGLE COMPONENT SINGLE WINDING
Maximum Operating Temp85.0 CELSIUS DEGC
Center to Center Distance Between Mounting Facilities Parallel to Length1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5365-00-358-81781271748 INTERCHANGEABLE
Spacer,ring
Chrysler Realty Company Llc Dba Daimler Chrysler
5330-00-831-163020477 INTERCHANGEABLE
Seal
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
6645-01-215-060520477 INTERCHANGEABLE
Timer,interval
Cleveland Range, Llc
5950-01-413-3872446-0851-001 INTERCHANGEABLE
Transformer,pulse
The Boeing Company Div Legacy Boeing Hb1
2540-01-504-2625204-77 INTERCHANGEABLE
Regulator,vehicle Window
Crane Carrier Company, Llc
5325-01-579-630520477 INTERCHANGEABLE
Ring,retaining
Lockheed Martin Corporation
Cross-Reference Index
Part NumberManufacturer
20477 PRIMARY Astec America Inc. (USA)
5006602 International Telephone and Telegraph Corp Itt Gilfillan Div (USA)
Related Parts
5365-00-358-8178INTERCHANGEABLE
SPACER,RING
1271748
5330-00-831-1630INTERCHANGEABLE
SEAL
20477
6645-01-215-0605INTERCHANGEABLE
TIMER,INTERVAL
20477
5950-01-413-3872INTERCHANGEABLE
TRANSFORMER,PULSE
446-0851-001
2540-01-504-2625INTERCHANGEABLE
REGULATOR,VEHICLE WINDOW
204-77
5325-01-579-6305INTERCHANGEABLE
RING,RETAINING
20477

Frequently Asked Questions

What is NSN 5950-00-220-9931?

NSN 5950-00-220-9931 is a Reactor, manufactured by Astec America Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-220-9931?

NSN 5950-00-220-9931 has 2 cross-referenced part numbers: 20477 (Astec America Inc.), 5006602 (International Telephone and Telegraph Corp Itt Gilfillan Div).

What NSN replaces 5950-00-220-9931?

There are 6 known substitutes for 5950-00-220-9931: 5365-00-358-8178, 5330-00-831-1630, 6645-01-215-0605 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20477?

Key specifications for 20477: Mounting Facility Quantity: 4 SINGLE GROUP; Body Length: 2.500 INCHES NOMINAL IN; Frequency Rating: 114.0 HERTZ MINIMUM AND 126.0 HERTZ MAXIMUM SINGLE COMPONENT; Inclosure Type: OPEN. 19 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