PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21091Transformer,power

Astec America Inc. · NSN 5950-00-220-9924 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-220-9924 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-220-9924. Primary manufacturer part number: 21091.
Features
  • Transformer,power — FSC 5950
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Thread Series Designator: UNF SINGLE GROUP
  • Body Width: 4.000 INCHES MAXIMUM IN
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 4.380 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Nominal Thread Size: 0.190 INCHES SINGLE GROUP IN
  • Frequency Rating: 57.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-220-9924, 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 5 commercial cross-references from 5 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
NSN5950-00-220-9924
Primary Part Number21091
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAstec America Inc.
StatusACTIVE
Thread Quantity Per Inch32 SINGLE GROUP
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Series DesignatorUNF SINGLE GROUP
Body Width4.000 INCHES MAXIMUM IN
Center to Center Distance Between Mounting Facilities Parallel to Length4.380 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Nominal Thread Size0.190 INCHES SINGLE GROUP IN
Frequency Rating57.0 HERTZ MINIMUM AND 63.0 HERTZ MAXIMUM SINGLE COMPONENT
Winding Operating Voltage1.40 AC KILOVOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Body Height4.780 INCHES MAXIMUM IN
Body Length5.500 INCHES MAXIMUM IN
Inclosure TypeOPEN
Mounting Facility Quantity4 SINGLE GROUP
Terminal Type and Quantity4 TAB, SOLDER LUG
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Winding Operating Voltage120.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Maximum Operating Temp85.0 CELSIUS DEGC
Center to Center Distance Between Mounting Facilities Parallel to Width2.880 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-156-3523204FFSL107E306A78X6945R INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5998-00-563-0569 INTERCHANGEABLE
Circuit Card Assembly
4730-01-293-6755PMP21091 INTERCHANGEABLE
Coupling,pump
Torc Tec Calibrations, Inc
5360-01-387-647721091 INTERCHANGEABLE
Spring,helical,extension
Science Applications International Corporation
3040-01-449-02532109-036 INTERCHANGEABLE
Shaft,shouldered
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4920-01-620-664121091 INTERCHANGEABLE
Nrp,nozzle-Tungsten
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
Cross-Reference Index
Part NumberManufacturer
5006611-1 Sargent Industries Inc (USA)
5006611-1 International Telephone and Telegraph Corp Itt Gilfillan Div (USA)
21091 Beatrice Foods Co Taylor Freezer Div (USA)
21091 PRIMARY Astec America Inc. (USA)
5006611-1 L3harris Technologies, Inc. (USA)
Related Parts
3110-00-156-3523INTERCHANGEABLE
BEARING,BALL,ANNULAR
204FFSL107E306A78X6945R
5998-00-563-0569INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4730-01-293-6755INTERCHANGEABLE
COUPLING,PUMP
PMP21091
5360-01-387-6477INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
21091
3040-01-449-0253INTERCHANGEABLE
SHAFT,SHOULDERED
2109-036
4920-01-620-6641INTERCHANGEABLE
NRP,NOZZLE-TUNGSTEN
21091

Frequently Asked Questions

What is NSN 5950-00-220-9924?

NSN 5950-00-220-9924 is a Transformer,power, manufactured by Astec America Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-220-9924?

NSN 5950-00-220-9924 has 5 cross-referenced part numbers: 5006611-1 (Sargent Industries Inc), 5006611-1 (International Telephone and Telegraph Corp Itt Gilfillan Div), 21091 (Beatrice Foods Co Taylor Freezer Div), 21091 (Astec America Inc.), 5006611-1 (L3harris Technologies, Inc.).

What NSN replaces 5950-00-220-9924?

There are 6 known substitutes for 5950-00-220-9924: 3110-00-156-3523, 5998-00-563-0569, 4730-01-293-6755 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21091?

Key specifications for 21091: Thread Quantity Per Inch: 32 SINGLE GROUP; Mounting Method: THREADED HOLE(S) SINGLE GROUP; Thread Series Designator: UNF SINGLE GROUP; Body Width: 4.000 INCHES MAXIMUM IN. 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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