PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NT8156Transformer,audio Frequency

Bogen Communications Inc · NSN 5950-00-645-7810 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-7810 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-7810. Primary manufacturer part number: NT8156.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Maximum Transformer Power Rating: 25.0 WATTS SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Thread Quantity Per Inch: 32 SINGLE GROUP
  • Mounting Method: THREADED STUD(S) SINGLE GROUP
  • Inclosure Type: FULLY INCLOSED
  • Winding Operating Current: 95.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-7810, 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 Bogen Communications Inc. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-7810
Primary Part NumberNT8156
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBogen Communications Inc
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Maximum Transformer Power Rating25.0 WATTS SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Thread Quantity Per Inch32 SINGLE GROUP
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Inclosure TypeFULLY INCLOSED
Winding Operating Current95.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms245.0 NOMINAL SINGLE COMPONENT FIRST SECONDARY
Body Width2.938 INCHES NOMINAL IN
Frequency Rating200.0 HERTZ MINIMUM AND 6.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Impedance Rating in Ohms11.25 NOMINAL SINGLE COMPONENT SECOND SECONDARY
Center to Center Distance Between Mounting Facilities Parallel to Length2.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Body Length3.500 INCHES NOMINAL IN
Impedance Rating in Ohms8000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Primary to Secondary Turn Ratio1 TO 5-19/64 SINGLE COMPONENT
Mounting Facility Quantity4 SINGLE GROUP
Body Height2.562 INCHES NOMINAL IN
Terminal Type and Quantity7 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5133-00-061-627910919 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
2925-00-816-873831074 INTERCHANGEABLE
Parts Kit,ignition
Unison Industries Llc
Cross-Reference Index
Part NumberManufacturer
NT8156 PRIMARY Bogen Communications Inc (USA)
24272 PRIMARY Freed Transformer Co (USA)
Related Parts
5133-00-061-6279INTERCHANGEABLE
DRILL,TWIST
10919
2925-00-816-8738INTERCHANGEABLE
PARTS KIT,IGNITION
31074

Frequently Asked Questions

What is NSN 5950-00-645-7810?

NSN 5950-00-645-7810 is a Transformer,audio Frequency, manufactured by Bogen Communications Inc, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-7810?

NSN 5950-00-645-7810 has 2 cross-referenced part numbers: NT8156 (Bogen Communications Inc), 24272 (Freed Transformer Co).

What NSN replaces 5950-00-645-7810?

There are 2 known substitutes for 5950-00-645-7810: 5133-00-061-6279, 2925-00-816-8738. Verify interchangeability with system specifications before substitution.

What are the specifications of NT8156?

Key specifications for NT8156: Reliability Indicator: NOT ESTABLISHED; Maximum Transformer Power Rating: 25.0 WATTS SINGLE COMPONENT; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Thread Quantity Per Inch: 32 SINGLE GROUP. 21 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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