PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25059Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-519-9157 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-519-9157 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-519-9157. Primary manufacturer part number: 25059.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Body Height: 2.250 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Inclosure Type: HERMETICALLY SEALED
  • Winding Operating Current: 5.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • 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,audio Frequency, cataloged under National Stock Number 5950-00-519-9157, 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 Freed Transformer Co. Government technical data includes 17 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-519-9157
Primary Part Number25059
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Body Height2.250 INCHES NOMINAL IN
Thread Quantity Per Inch32 SINGLE GROUP
Inclosure TypeHERMETICALLY SEALED
Winding Operating Current5.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Mounting Facility Quantity4 SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Width1.625 INCHES NOMINAL IN
Frequency Rating475.0 HERTZ MINIMUM AND 525.0 HERTZ MAXIMUM SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 2-31/32 SINGLE COMPONENT
Body Length1.750 INCHES NOMINAL IN
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity4 STANDOFF, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-479-4143 INTERCHANGEABLE
Seal,plain Encased
2915-00-508-523097881 INTERCHANGEABLE
Lever,fuel Control
Hamilton Sundstrand Corporation Dba Collins Aerospace
3040-00-512-0159 INTERCHANGEABLE
Clamp,hub
5133-00-585-0367 INTERCHANGEABLE
Countersink and Drill Set
5910-01-008-8192 INTERCHANGEABLE
Capacitor,fixed,electrolytic
5340-01-185-45822-5059 INTERCHANGEABLE
Hinge,access Door
National Refrigeration & Air Conditioning Products Inc Dba Continental Refrigerator
4330-01-264-9534 INTERCHANGEABLE
Filter Element,fluid
4720-01-540-7434 INTERCHANGEABLE
Hose Assembly,nonmetallic
6515-01-597-9525NDA44761 INTERCHANGEABLE
Shield,eye,surgical
Medline Industries, Lp
Cross-Reference Index
Part NumberManufacturer
25059 Freed Transformer Co (USA)
97881 Edo (USA)
763603 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5330-00-479-4143INTERCHANGEABLE
SEAL,PLAIN ENCASED
2915-00-508-5230INTERCHANGEABLE
LEVER,FUEL CONTROL
97881
3040-00-512-0159INTERCHANGEABLE
CLAMP,HUB
5133-00-585-0367INTERCHANGEABLE
COUNTERSINK AND DRILL SET
5910-01-008-8192INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
5340-01-185-4582INTERCHANGEABLE
HINGE,ACCESS DOOR
2-5059
4330-01-264-9534INTERCHANGEABLE
FILTER ELEMENT,FLUID
4720-01-540-7434INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
6515-01-597-9525INTERCHANGEABLE
SHIELD,EYE,SURGICAL
NDA44761

Frequently Asked Questions

What is NSN 5950-00-519-9157?

NSN 5950-00-519-9157 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-519-9157?

NSN 5950-00-519-9157 has 3 cross-referenced part numbers: 25059 (Freed Transformer Co), 97881 (Edo), 763603 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5950-00-519-9157?

There are 9 known substitutes for 5950-00-519-9157: 5330-00-479-4143, 2915-00-508-5230, 3040-00-512-0159 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25059?

Key specifications for 25059: Reliability Indicator: NOT ESTABLISHED; Body Height: 2.250 INCHES NOMINAL IN; Thread Quantity Per Inch: 32 SINGLE GROUP; Inclosure Type: HERMETICALLY SEALED. 17 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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