PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21F09Transformer,power

Gramer Halldorson Electronics Corp · NSN 5950-00-552-8052 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-552-8052 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-552-8052. Primary manufacturer part number: 21F09.
Features
  • Transformer,power — FSC 5950
  • Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN
  • Winding Operating Current: 1.2 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
  • Body Length: 2.812 INCHES NOMINAL IN
  • Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT
  • Input-Output Phase Relationship: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
  • Distance Between Mounting Facility Centers: 2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY 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 5950-00-552-8052, 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 Gramer Halldorson Electronics Corp. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-552-8052
Primary Part Number21F09
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerGramer Halldorson Electronics Corp
StatusCANCELLED
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP IN
Winding Operating Current1.2 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Body Length2.812 INCHES NOMINAL IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Distance Between Mounting Facility Centers2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Terminal Type and Quantity5 WIRE LEAD
Mounting Facility Quantity2 SINGLE GROUP
Body Height1.625 INCHES NOMINAL IN
Body Width1.625 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Winding Operating Voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Inclosure TypeFULLY INCLOSED
Winding Operating Voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5950-00-166-1080FT2 INTERCHANGEABLE
Transformer,power
Magnetika Inc
Cross-Reference Index
Part NumberManufacturer
21F09 Gramer Halldorson Electronics Corp (USA)
F14X Magnetek Inc Huntington Div (USA)
733-510-9001 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
10383495 Us Army Aviation and Missile Command (USA)
F14X Triad Inc (USA)
900999-6693 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5950-00-166-1080INTERCHANGEABLE
TRANSFORMER,POWER
FT2

Frequently Asked Questions

What is NSN 5950-00-552-8052?

NSN 5950-00-552-8052 is a Transformer,power, manufactured by Gramer Halldorson Electronics Corp, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-552-8052?

NSN 5950-00-552-8052 has 6 cross-referenced part numbers: 21F09 (Gramer Halldorson Electronics Corp), F14X (Magnetek Inc Huntington Div), 733-510-9001 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), 10383495 (Us Army Aviation and Missile Command), F14X (Triad Inc) and 1 more.

What NSN replaces 5950-00-552-8052?

There is 1 known substitute for 5950-00-552-8052: 5950-00-166-1080. Verify interchangeability with system specifications before substitution.

What are the specifications of 21F09?

Key specifications for 21F09: Mounting Hole Diameter: 0.188 INCHES NOMINAL SINGLE GROUP IN; Winding Operating Current: 1.2 AMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY; Body Length: 2.812 INCHES NOMINAL IN; Frequency Rating: 60.0 HERTZ NOMINAL SINGLE COMPONENT. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-552-8052 still in active supply?

NSN 5950-00-552-8052 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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