PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T4Transformer,audio Frequency

Bogen Communications Inc · NSN 5950-00-519-9287 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-519-9287 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-519-9287. Primary manufacturer part number: T4.
Features
  • Transformer,audio Frequency — FSC 5950
  • Primary to Secondary Turn Ratio: 1 TO 16-13/32 SINGLE COMPONENT
  • Distance Between Mounting Facility Centers: 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Inclosure Type: OPEN
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
  • Transformer Function: LINE
  • Frequency Rating: 40.0 HERTZ MINIMUM AND 12.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-519-9287, 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 17 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-519-9287
Primary Part NumberT4
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerBogen Communications Inc
StatusACTIVE
Primary to Secondary Turn Ratio1 TO 16-13/32 SINGLE COMPONENT
Distance Between Mounting Facility Centers2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Inclosure TypeOPEN
Terminal Type and Quantity4 TAB, SOLDER LUG
Transformer FunctionLINE
Frequency Rating40.0 HERTZ MINIMUM AND 12.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Mounting Facility Quantity2 SINGLE GROUP
Impedance Rating in Ohms8.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Body Length2.812 INCHES NOMINAL IN
Maximum Transformer Power Rating4.0 WATTS SINGLE COMPONENT
Body Height1.562 INCHES NOMINAL IN
Body Width2.250 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Mounting Hole Diameter0.188 INCHES NOMINAL SINGLE GROUP IN
Impedance Rating in Ohms2500.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5920-00-142-6862T4 INTERCHANGEABLE
Fuse,plug
Cooper Bussmann, Llc Dba Cooper Industries
6505-00-147-0000 INTERCHANGEABLE
Talc
5340-00-229-38461141GE INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
6625-00-257-21786039 INTERCHANGEABLE
Test Set,battery
Associated Equipment Corporation Dba Associated Equipment Corp
5985-00-295-3919 INTERCHANGEABLE
Attenuator,variable
6625-00-391-7957T4 INTERCHANGEABLE
Test Set,insulation Breakdown
Entron Industries Limited Partnership Dba Entron Industries Property Div
6680-00-515-6363T4 INTERCHANGEABLE
Tachometer,vibrating Reed
Avo Intl
6240-00-536-1867T4 INTERCHANGEABLE
Lamp,incandescent
Sol-Rex Miniature Lamp Works
4910-00-554-3542158H INTERCHANGEABLE
Lift,transmission and Differenti
Goodrich Corporation
6675-00-641-3549 INTERCHANGEABLE
Theodolite,surveying
Cross-Reference Index
Part NumberManufacturer
T4 PRIMARY Bogen Communications Inc (USA)
Related Parts
5920-00-142-6862INTERCHANGEABLE
FUSE,PLUG
T4
6505-00-147-0000INTERCHANGEABLE
TALC
5340-00-229-3846INTERCHANGEABLE
KEY BLANK
1141GE
6625-00-257-2178INTERCHANGEABLE
TEST SET,BATTERY
6039
5985-00-295-3919INTERCHANGEABLE
ATTENUATOR,VARIABLE
6625-00-391-7957INTERCHANGEABLE
TEST SET,INSULATION BREAKDOWN
T4
6680-00-515-6363INTERCHANGEABLE
TACHOMETER,VIBRATING REED
T4
6240-00-536-1867INTERCHANGEABLE
LAMP,INCANDESCENT
T4
4910-00-554-3542INTERCHANGEABLE
LIFT,TRANSMISSION AND DIFFERENTI
158H
6675-00-641-3549INTERCHANGEABLE
THEODOLITE,SURVEYING
5920-00-871-1045INTERCHANGEABLE
FUSE,PLUG
T4
5930-01-013-9731INTERCHANGEABLE
SWITCH SECTION,ROTARY

Frequently Asked Questions

What is NSN 5950-00-519-9287?

NSN 5950-00-519-9287 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 5950-00-519-9287?

NSN 5950-00-519-9287 has 1 cross-referenced part number: T4 (Bogen Communications Inc).

What NSN replaces 5950-00-519-9287?

There are 12 known substitutes for 5950-00-519-9287: 5920-00-142-6862, 6505-00-147-0000, 5340-00-229-3846 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T4?

Key specifications for T4: Primary to Secondary Turn Ratio: 1 TO 16-13/32 SINGLE COMPONENT; Distance Between Mounting Facility Centers: 2.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Inclosure Type: OPEN; Terminal Type and Quantity: 4 TAB, SOLDER LUG. 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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