PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37860Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-086-8869 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-086-8869 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-086-8869. Primary manufacturer part number: 37860.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Mounting Hole Diameter: 0.128 INCHES NOMINAL SINGLE GROUP IN
  • Primary to Secondary Turn Ratio: 1 TO 1-7/10 SINGLE COMPONENT
  • Frequency Rating: 5.0 KILOHERTZ NOMINAL SINGLE COMPONENT
  • Inclosure Type: HERMETICALLY SEALED
  • Impedance Rating in Ohms: 500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Terminal Type and Quantity: 5 TAB, SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-086-8869, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-086-8869
Primary Part Number37860
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Mounting Hole Diameter0.128 INCHES NOMINAL SINGLE GROUP IN
Primary to Secondary Turn Ratio1 TO 1-7/10 SINGLE COMPONENT
Frequency Rating5.0 KILOHERTZ NOMINAL SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Impedance Rating in Ohms500.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Terminal Type and Quantity5 TAB, SOLDER LUG
Maximum Transformer Power Rating1.0 WATTS SINGLE COMPONENT
Body Length1.406 INCHES MAXIMUM IN
Impedance Rating in Ohms1500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Body Width0.922 INCHES MAXIMUM IN
Winding Operating Current10.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
Winding Operating Current20.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Distance Between Mounting Facility Centers1.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Height1.281 INCHES MAXIMUM IN
Mounting Facility Quantity2 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6615-00-181-2376141925-01 INTERCHANGEABLE
Pickoff,gyro Gymbal
Ge Aviation Systems Llc
5935-00-243-1643247ASC0211-001 INTERCHANGEABLE
Connector,receptacle,electrical
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4520-00-270-4517JX2D1 INTERCHANGEABLE
Heating Element,electrical,nonim
General Electric Company
5330-00-342-648827034 INTERCHANGEABLE
Gasket
Briggs and Stratton Corp
2530-00-426-94912703-4 INTERCHANGEABLE
Brake Drum
Erie Malleable Iron Co
5940-01-027-5950W2T91707 INTERCHANGEABLE
Terminal Board
Evoqua Water Technologies Llc
3130-01-207-3578 INTERCHANGEABLE
Housing,bearing Unit
5963-01-338-1620 INTERCHANGEABLE
Regulator,voltage
5307-01-477-1322 INTERCHANGEABLE
Stud,shouldered
6520-01-599-9560100-5180 INTERCHANGEABLE
Forceps,endodontic
Henry Schein, Inc.
Cross-Reference Index
Part NumberManufacturer
37860 Freed Transformer Co (USA)
27034 Emerson Electric Co White-Rodgers Div (USA)
C10103 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
677-6029-00 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
6615-00-181-2376INTERCHANGEABLE
PICKOFF,GYRO GYMBAL
141925-01
5935-00-243-1643INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
247ASC0211-001
4520-00-270-4517INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
JX2D1
5330-00-342-6488INTERCHANGEABLE
GASKET
27034
2530-00-426-9491INTERCHANGEABLE
BRAKE DRUM
2703-4
5940-01-027-5950INTERCHANGEABLE
TERMINAL BOARD
W2T91707
3130-01-207-3578INTERCHANGEABLE
HOUSING,BEARING UNIT
5963-01-338-1620INTERCHANGEABLE
REGULATOR,VOLTAGE
5307-01-477-1322INTERCHANGEABLE
STUD,SHOULDERED
6520-01-599-9560INTERCHANGEABLE
FORCEPS,ENDODONTIC
100-5180
5305-01-651-3438INTERCHANGEABLE
SCREW,MACHINE
27034

Frequently Asked Questions

What is NSN 5950-00-086-8869?

NSN 5950-00-086-8869 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 5950-00-086-8869?

NSN 5950-00-086-8869 has 4 cross-referenced part numbers: 37860 (Freed Transformer Co), 27034 (Emerson Electric Co White-Rodgers Div), C10103 (Electronic Transformer Corp Div Electronic Transformer Corporation), 677-6029-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5950-00-086-8869?

There are 11 known substitutes for 5950-00-086-8869: 6615-00-181-2376, 5935-00-243-1643, 4520-00-270-4517 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37860?

Key specifications for 37860: Reliability Indicator: NOT ESTABLISHED; Mounting Hole Diameter: 0.128 INCHES NOMINAL SINGLE GROUP IN; Primary to Secondary Turn Ratio: 1 TO 1-7/10 SINGLE COMPONENT; Frequency Rating: 5.0 KILOHERTZ NOMINAL SINGLE COMPONENT. 18 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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