PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2678621Transformer,audio Frequency

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5950-00-147-9676 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-147-9676 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-147-9676. Primary manufacturer part number: 2678621.
Features
  • Transformer,audio Frequency — FSC 5950
  • Inclosure Type: FULLY INCLOSED
  • Impedance Rating in Ohms: 300.0 MINIMUM SINGLE COMPONENT FIRST PRIMARY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Function and Quantity: 4 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) 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 5950-00-147-9676, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 15 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-147-9676
Primary Part Number2678621
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Inclosure TypeFULLY INCLOSED
Impedance Rating in Ohms300.0 MINIMUM SINGLE COMPONENT FIRST PRIMARY
Center to Center Distance Between Mounting Facilities Parallel to Length2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Winding Function and Quantity4 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width3.000 INCHES NOMINAL IN
Nominal Thread Size0.164 INCHES SINGLE GROUP IN
Body Length3.500 INCHES NOMINAL IN
Frequency Rating60.0 HERTZ NOMINAL SINGLE COMPONENT
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Width2.125 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height2.250 INCHES NOMINAL IN
Terminal Type and Quantity16 TURRET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5342-00-013-3651DS-934377 INTERCHANGEABLE
Clip,nutating Plate
Eaton Aerospace, Llc Dba Jackson South
5950-00-020-9000 INTERCHANGEABLE
Transformer,power
2520-00-025-125637333D INTERCHANGEABLE
Shaft,clutch
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5930-00-042-5728 INTERCHANGEABLE
Guard,switch
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5305-00-207-7068SMD331506-9 INTERCHANGEABLE
Screw,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-228-1449 INTERCHANGEABLE
Coil,radio Frequency
5815-00-228-6704SC-C-69992-9 INTERCHANGEABLE
Bar,connecting,teletypewriter
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5340-00-421-80011035-4 INTERCHANGEABLE
Clip,spring Tension
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
5999-00-437-5343 INTERCHANGEABLE
Mounting Pad,electrical-Electron
Cross-Reference Index
Part NumberManufacturer
4879 Precision Electronics, Inc (USA)
2678621 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
475301 Electronic Transformer Corp Div Electronic Transformer Corporation (USA)
10354 Standex Electronics, Inc. (USA)
Related Parts
5342-00-013-3651INTERCHANGEABLE
CLIP,NUTATING PLATE
DS-934377
5950-00-020-9000INTERCHANGEABLE
TRANSFORMER,POWER
2520-00-025-1256INTERCHANGEABLE
SHAFT,CLUTCH
37333D
5930-00-042-5728INTERCHANGEABLE
GUARD,SWITCH
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
5305-00-207-7068INTERCHANGEABLE
SCREW,MACHINE
SMD331506-9
5950-00-228-1449INTERCHANGEABLE
COIL,RADIO FREQUENCY
5815-00-228-6704INTERCHANGEABLE
BAR,CONNECTING,TELETYPEWRITER
SC-C-69992-9
5340-00-421-8001INTERCHANGEABLE
CLIP,SPRING TENSION
1035-4
5999-00-437-5343INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5340-00-515-1711INTERCHANGEABLE
LATCH,RIM
4905-25
5360-00-719-7560INTERCHANGEABLE
SPRING,HELICAL
2678621

Frequently Asked Questions

What is NSN 5950-00-147-9676?

NSN 5950-00-147-9676 is a Transformer,audio Frequency, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-147-9676?

NSN 5950-00-147-9676 has 4 cross-referenced part numbers: 4879 (Precision Electronics, Inc), 2678621 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 475301 (Electronic Transformer Corp Div Electronic Transformer Corporation), 10354 (Standex Electronics, Inc.).

What NSN replaces 5950-00-147-9676?

There are 12 known substitutes for 5950-00-147-9676: 5342-00-013-3651, 5950-00-020-9000, 2520-00-025-1256 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2678621?

Key specifications for 2678621: Inclosure Type: FULLY INCLOSED; Impedance Rating in Ohms: 300.0 MINIMUM SINGLE COMPONENT FIRST PRIMARY; Center to Center Distance Between Mounting Facilities Parallel to Length: 2.625 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN; Mounting Facility Quantity: 4 SINGLE GROUP. 15 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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