PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37346Transformer,audio Frequency

Freed Transformer Co · NSN 5950-00-945-3770 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-945-3770 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-945-3770. Primary manufacturer part number: 37346.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Impedance Rating in Ohms: 1000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Width: 1.000 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 4 TAB, SOLDER LUG
  • Mounting Facility Quantity: 2 SINGLE GROUP
  • Body Height: 1.375 INCHES MAXIMUM 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 5950-00-945-3770, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-945-3770
Primary Part Number37346
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerFreed Transformer Co
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Impedance Rating in Ohms1000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Width1.000 INCHES MAXIMUM IN
Terminal Type and Quantity4 TAB, SOLDER LUG
Mounting Facility Quantity2 SINGLE GROUP
Body Height1.375 INCHES MAXIMUM IN
Maximum Transformer Power Rating1.0 MILLIWATTS SINGLE COMPONENT
Body Length1.000 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeHERMETICALLY SEALED
Impedance Rating in Ohms150.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating250.0 HERTZ MINIMUM AND 6.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Thread Quantity Per Inch40 SINGLE GROUP
Distance Between Mounting Facility Centers0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-135-504037346 INTERCHANGEABLE
Switch,thermostatic
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
9540-00-242-5436 INTERCHANGEABLE
Beam,structural
5120-00-288-9294212 INTERCHANGEABLE
Wrench,open End
Martin Sprocket and Gear Inc
4810-00-336-950937346 INTERCHANGEABLE
Seat,valve
Eaton Aerospace, Llc Dba Jackson South
9540-00-528-8819 INTERCHANGEABLE
Beam,structural
5365-01-090-6579R-8-9-20 INTERCHANGEABLE
Ring,operating
Todd Combustion Inc
6210-01-158-0393 INTERCHANGEABLE
Light Assembly,indicator
5910-01-350-066532864 INTERCHANGEABLE
Capacitor,fixed,electrolytic
Setra Systems, Inc. Dba Gems Sensors
5365-01-418-5879CB27986-001 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
5310-01-683-296037346 INTERCHANGEABLE
Nut,self-Locking,extended Washer
Fastenal Company Div Mqmi
Cross-Reference Index
Part NumberManufacturer
32864 Emerson Electric Co White-Rodgers Div (USA)
37346 PRIMARY Freed Transformer Co (USA)
677-0222-00 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
677-0222-000 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
677-0222-000 PRIMARY Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
Related Parts
5930-00-135-5040INTERCHANGEABLE
SWITCH,THERMOSTATIC
37346
9540-00-242-5436INTERCHANGEABLE
BEAM,STRUCTURAL
5120-00-288-9294INTERCHANGEABLE
WRENCH,OPEN END
212
4810-00-336-9509INTERCHANGEABLE
SEAT,VALVE
37346
9540-00-528-8819INTERCHANGEABLE
BEAM,STRUCTURAL
5365-01-090-6579INTERCHANGEABLE
RING,OPERATING
R-8-9-20
6210-01-158-0393INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
5910-01-350-0665INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
32864
5365-01-418-5879INTERCHANGEABLE
SHIM
CB27986-001
5310-01-683-2960INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
37346

Frequently Asked Questions

What is NSN 5950-00-945-3770?

NSN 5950-00-945-3770 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 5950-00-945-3770?

NSN 5950-00-945-3770 has 5 cross-referenced part numbers: 32864 (Emerson Electric Co White-Rodgers Div), 37346 (Freed Transformer Co), 677-0222-00 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 677-0222-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 677-0222-000 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems).

What NSN replaces 5950-00-945-3770?

There are 10 known substitutes for 5950-00-945-3770: 5930-00-135-5040, 9540-00-242-5436, 5120-00-288-9294 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37346?

Key specifications for 37346: Reliability Indicator: NOT ESTABLISHED; Impedance Rating in Ohms: 1000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Body Width: 1.000 INCHES MAXIMUM IN. 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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