PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

667-0121-000Transformer,audio Frequency

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5950-00-947-3000 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-947-3000 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-947-3000. Primary manufacturer part number: 667-0121-000.
Features
  • Transformer,audio Frequency — FSC 5950
  • Frequency Rating: 300.0 HERTZ MINIMUM AND 3.75 KILOHERTZ MAXIMUM SINGLE COMPONENT
  • Transformer Function: LINE
  • Reliability Indicator: NOT ESTABLISHED
  • Body Length: 1.985 INCHES NOMINAL IN
  • Terminal Type and Quantity: 6 PIN
  • Thread Quantity Per Inch: 40 SINGLE GROUP
  • Distance Between Mounting Facility Centers: 1.000 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 5950-00-947-3000, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-947-3000
Primary Part Number667-0121-000
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Frequency Rating300.0 HERTZ MINIMUM AND 3.75 KILOHERTZ MAXIMUM SINGLE COMPONENT
Transformer FunctionLINE
Reliability IndicatorNOT ESTABLISHED
Body Length1.985 INCHES NOMINAL IN
Terminal Type and Quantity6 PIN
Thread Quantity Per Inch40 SINGLE GROUP
Distance Between Mounting Facility Centers1.000 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Height0.954 INCHES NOMINAL IN
Inclosure TypeOPEN
Impedance Rating in Ohms250.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Nominal Thread Size0.112 INCHES SINGLE GROUP IN
Mounting Facility Quantity2 SINGLE GROUP
Winding Operating Current140.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Maximum Transformer Power Rating900.0 MILLIWATTS SINGLE COMPONENT
Body Width0.900 INCHES NOMINAL IN
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1650-00-077-886816083 INTERCHANGEABLE
Plug,manifold
Mid-America Aerotech, Llc
5977-00-237-161516083 INTERCHANGEABLE
Brush,electrical Contact
General Motors Llc Dba General Motors Llc
6105-00-523-986811G4G/1602 INTERCHANGEABLE
Motor-Tachometer Generator
General Dynamics Motion Control Llc
5330-01-065-4612 INTERCHANGEABLE
Gasket
4920-01-263-1361A14612 INTERCHANGEABLE
Seal Unit
Pall Aeropower Corporation
2590-01-294-17791608-3 INTERCHANGEABLE
Cap,filler Opening
Snyder Tank Corp
5120-01-422-0085601D3 INTERCHANGEABLE
Tool,installation
Howmet Global Fastening Systems Inc Div Rosan Products
Cross-Reference Index
Part NumberManufacturer
667-0121-000 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
A14612 Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc. (USA)
16083 Magnespec Inc (USA)
Related Parts
1650-00-077-8868INTERCHANGEABLE
PLUG,MANIFOLD
16083
5977-00-237-1615INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
16083
6105-00-523-9868INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
11G4G/1602
5330-01-065-4612INTERCHANGEABLE
GASKET
4920-01-263-1361INTERCHANGEABLE
SEAL UNIT
A14612
2590-01-294-1779INTERCHANGEABLE
CAP,FILLER OPENING
1608-3
5120-01-422-0085INTERCHANGEABLE
TOOL,INSTALLATION
601D3

Frequently Asked Questions

What is NSN 5950-00-947-3000?

NSN 5950-00-947-3000 is a Transformer,audio Frequency, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-947-3000?

NSN 5950-00-947-3000 has 3 cross-referenced part numbers: 667-0121-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), A14612 (Te Connectivity Networks, Inc. Div Adc Telecommunications Sales, Inc.), 16083 (Magnespec Inc).

What NSN replaces 5950-00-947-3000?

There are 7 known substitutes for 5950-00-947-3000: 1650-00-077-8868, 5977-00-237-1615, 6105-00-523-9868 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 667-0121-000?

Key specifications for 667-0121-000: Frequency Rating: 300.0 HERTZ MINIMUM AND 3.75 KILOHERTZ MAXIMUM SINGLE COMPONENT; Transformer Function: LINE; Reliability Indicator: NOT ESTABLISHED; Body Length: 1.985 INCHES NOMINAL IN. 19 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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