PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21007Transformer,power

Atco Technology Inc Bullock Magnetics Div · NSN 5950-01-271-4817 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-271-4817 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-271-4817. Primary manufacturer part number: 21007.
Features
  • Transformer,power — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) ALL GROUPINGS
  • Winding Operating Current: 2.61 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY
  • Mounting Facility Quantity: 4 ALL GROUPINGS
  • Test Data Document: 15280-40-054808 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
  • Winding Operating Voltage: 18.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
  • Winding Operating Voltage: 18.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-01-271-4817, 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 Atco Technology Inc Bullock Magnetics Div. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Active.

Technical Specifications
ParameterValue
NSN5950-01-271-4817
Primary Part Number21007
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerAtco Technology Inc Bullock Magnetics Div
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) ALL GROUPINGS
Winding Operating Current2.61 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY
Mounting Facility Quantity4 ALL GROUPINGS
Test Data Document15280-40-054808 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Winding Operating Voltage18.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY
Winding Operating Voltage18.00 AC VOLTS NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Operating Voltage200.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Operating Voltage30.00 AC VOLTS NOMINAL SINGLE COMPONENT THIRD SECONDARY
Winding Operating Voltage18.00 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
Winding Power Rating12.6 VOLTS-AMPERES SINGLE COMPONENT FOURTH SECONDARY
Inclosure TypeFULLY INCLOSED
Winding Power Rating36.72 VOLTS-AMPERES SINGLE COMPONENT FIRST SECONDARY
Terminal Type and Quantity26 WIRE HOOK
Nominal Thread Size0.164 INCHES SECOND GROUP IN
Winding Operating Current730.0 MILLIAMPERES AC NOMINAL SINGLE COMPONENT FOURTH SECONDARY
Winding Power Rating29.34 VOLTS-AMPERES SINGLE COMPONENT SECOND SECONDARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SECOND GROUP
Nominal Thread Size0.112 INCHES FIRST GROUP IN
Winding Operating Current1.63 AMPERES AC NOMINAL SINGLE COMPONENT SECOND SECONDARY
Transformer Winding Connection TypeDELTA-DELTA AND DELTA-WYE
Winding Function and Quantity1 PRIMARY AND 7 SECONDARY SINGLE COMPONENT
Winding Operating Current2.04 AMPERES AC NOMINAL SINGLE COMPONENT FIRST SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Width2.250 INCHES NOMINAL ALL MOUNTING FACILITIES ALL CENTER GROUPINGS IN
Input-Output Phase RelationshipTHREE PHASE TO THREE PHASE SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-011-3256113256 INTERCHANGEABLE
Screw,drive
Us Army Aviation and Missile Command
5310-00-042-6219 INTERCHANGEABLE
Washer,lock
5315-00-094-725121007 INTERCHANGEABLE
Pin,shoulder,headless
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
3110-00-108-922410720 INTERCHANGEABLE
Bearing,ball,annular
Berkel Inc
6515-00-187-2388210-017 INTERCHANGEABLE
Catheter and Needle Unit,intrave
Abbott Laboratories Sorenson Research Div
5950-00-494-335521007 INTERCHANGEABLE
Reactor
Magnetika Inc
3110-00-554-6030 INTERCHANGEABLE
Bearing,ball,annular
5310-00-721-781521007 INTERCHANGEABLE
Nut,plain,hexagon
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5940-00-983-6085 INTERCHANGEABLE
Terminal Board
5920-01-029-5887 INTERCHANGEABLE
Fuse Link,electrical
Cross-Reference Index
Part NumberManufacturer
21007 Atco Technology Inc Bullock Magnetics Div (USA)
40-054808-01 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
40-054808-01 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
210017 Atco Technology Inc Bullock Magnetics Div (USA)
Related Parts
5305-00-011-3256INTERCHANGEABLE
SCREW,DRIVE
113256
5310-00-042-6219INTERCHANGEABLE
WASHER,LOCK
5315-00-094-7251INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
21007
3110-00-108-9224INTERCHANGEABLE
BEARING,BALL,ANNULAR
10720
6515-00-187-2388INTERCHANGEABLE
CATHETER AND NEEDLE UNIT,INTRAVE
210-017
5950-00-494-3355INTERCHANGEABLE
REACTOR
21007
3110-00-554-6030INTERCHANGEABLE
BEARING,BALL,ANNULAR
5310-00-721-7815INTERCHANGEABLE
NUT,PLAIN,HEXAGON
21007
5940-00-983-6085INTERCHANGEABLE
TERMINAL BOARD
5920-01-029-5887INTERCHANGEABLE
FUSE LINK,ELECTRICAL
2920-01-047-9359INTERCHANGEABLE
DISTRIBUTOR,IGNITION SYSTEM
5975-01-097-3399INTERCHANGEABLE
PANEL,BLANK
21007

Frequently Asked Questions

What is NSN 5950-01-271-4817?

NSN 5950-01-271-4817 is a Transformer,power, manufactured by Atco Technology Inc Bullock Magnetics Div, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-271-4817?

NSN 5950-01-271-4817 has 4 cross-referenced part numbers: 21007 (Atco Technology Inc Bullock Magnetics Div), 40-054808-01 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 40-054808-01 (Northrop Grumman Systems Corporation Div Es Defensive Systems Division), 210017 (Atco Technology Inc Bullock Magnetics Div).

What NSN replaces 5950-01-271-4817?

There are 12 known substitutes for 5950-01-271-4817: 5305-00-011-3256, 5310-00-042-6219, 5315-00-094-7251 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21007?

Key specifications for 21007: Reliability Indicator: NOT ESTABLISHED; Overall Length: 3.250 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) ALL GROUPINGS; Winding Operating Current: 2.61 AMPERES AC NOMINAL SINGLE COMPONENT THIRD SECONDARY. 30 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