PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16530Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-250-1745 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-250-1745 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-250-1745. Primary manufacturer part number: 16530.
Features
  • Transformer,audio Frequency — FSC 5950
  • Impedance Rating in Ohms: 20000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT
  • Impedance Rating in Ohms: 20000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Reliability Indicator: NOT ESTABLISHED
  • Body Width: 2.125 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-250-1745, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5950-00-250-1745
Primary Part Number16530
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusCANCELLED
Impedance Rating in Ohms20000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Quantity Per Inch32 SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 1 SINGLE COMPONENT
Impedance Rating in Ohms20000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Reliability IndicatorNOT ESTABLISHED
Body Width2.125 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Length1.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeHERMETICALLY SEALED
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Body Length2.500 INCHES NOMINAL IN
Winding Operating Current12.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Height4.000 INCHES NOMINAL IN
Terminal Type and Quantity6 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4240-00-300-6964S9300-921873PC128 INTERCHANGEABLE
Diaphragm,speaking
Naval Ship Systems Command
6532-00-676-7421 INTERCHANGEABLE
Diaper,adult's
5935-00-836-4819165-30 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corp Div Amphenol Aerospace Operations
6695-01-133-6033144A9257P5 INTERCHANGEABLE
Transducer,motional Pickup
Bae Systems Controls Inc.
6520-01-376-461416530 INTERCHANGEABLE
Pulp Protector,dental
Kerr Corporation
6515-01-589-9636226.611 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5895-01-686-492316530 INTERCHANGEABLE
Switching Set,communications
Extreme Networks, Inc
Cross-Reference Index
Part NumberManufacturer
16530 PRIMARY Freed Transformer Co (USA)
Related Parts
4240-00-300-6964INTERCHANGEABLE
DIAPHRAGM,SPEAKING
S9300-921873PC128
6532-00-676-7421INTERCHANGEABLE
DIAPER,ADULT'S
5935-00-836-4819INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
165-30
6695-01-133-6033INTERCHANGEABLE
TRANSDUCER,MOTIONAL PICKUP
144A9257P5
6520-01-376-4614INTERCHANGEABLE
PULP PROTECTOR,DENTAL
16530
6515-01-589-9636INTERCHANGEABLE
BONE PLATE
226.611
5895-01-686-4923INTERCHANGEABLE
SWITCHING SET,COMMUNICATIONS
16530

Frequently Asked Questions

What is NSN 5950-00-250-1745?

NSN 5950-00-250-1745 is a Transformer,audio Frequency, manufactured by Freed Transformer Co, classified under FSC 5950 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5950-00-250-1745?

NSN 5950-00-250-1745 has 1 cross-referenced part number: 16530 (Freed Transformer Co).

What NSN replaces 5950-00-250-1745?

There are 7 known substitutes for 5950-00-250-1745: 4240-00-300-6964, 6532-00-676-7421, 5935-00-836-4819 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16530?

Key specifications for 16530: Impedance Rating in Ohms: 20000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Thread Quantity Per Inch: 32 SINGLE GROUP; Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT; Impedance Rating in Ohms: 20000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5950-00-250-1745 still in active supply?

NSN 5950-00-250-1745 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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