PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9989Transformer,audio Frequency

Emerson Electric Co White-Rodgers Div · NSN 5950-00-227-7840 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-227-7840 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-227-7840. Primary manufacturer part number: 9989.
Features
  • Transformer,audio Frequency — FSC 5950
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: HERMETICALLY SEALED
  • Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Mounting Method: UNTHREADED HOLE(S) SINGLE GROUP
  • Primary to Secondary Turn Ratio: 1 TO 1 SINGLE COMPONENT
  • Terminal Type and Quantity: 5 TAB, SOLDER LUG
  • Impedance Rating in Ohms: 600.0 NOMINAL 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 5950-00-227-7840, 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 Emerson Electric Co White-Rodgers Div. Government technical data includes 15 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-227-7840
Primary Part Number9989
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerEmerson Electric Co White-Rodgers Div
StatusACTIVE
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeHERMETICALLY SEALED
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Mounting MethodUNTHREADED HOLE(S) SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 1 SINGLE COMPONENT
Terminal Type and Quantity5 TAB, SOLDER LUG
Impedance Rating in Ohms600.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length2.156 INCHES NOMINAL IN
Body Width1.938 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Width2.375 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Mounting Facility Quantity6 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length0.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Transformer FunctionLINE
Body Height2.750 INCHES NOMINAL IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4810-00-147-58519989 INTERCHANGEABLE
Seat,valve
Northrop Grumman Systems Corporation Div Marine Systems
5330-00-178-467763X294 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
6230-00-564-3837G9989 INTERCHANGEABLE
Shade,lamp
Gillinder Brothers Inc
2920-00-600-6679 INTERCHANGEABLE
Starter,engine,electrical
Cross-Reference Index
Part NumberManufacturer
9989 Emerson Electric Co White-Rodgers Div (USA)
Related Parts
4810-00-147-5851INTERCHANGEABLE
SEAT,VALVE
9989
5330-00-178-4677INTERCHANGEABLE
SEAL,PLAIN ENCASED
63X294
6230-00-564-3837INTERCHANGEABLE
SHADE,LAMP
G9989
2920-00-600-6679INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL

Frequently Asked Questions

What is NSN 5950-00-227-7840?

NSN 5950-00-227-7840 is a Transformer,audio Frequency, manufactured by Emerson Electric Co White-Rodgers Div, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-227-7840?

NSN 5950-00-227-7840 has 1 cross-referenced part number: 9989 (Emerson Electric Co White-Rodgers Div).

What NSN replaces 5950-00-227-7840?

There are 4 known substitutes for 5950-00-227-7840: 4810-00-147-5851, 5330-00-178-4677, 6230-00-564-3837 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9989?

Key specifications for 9989: Reliability Indicator: NOT ESTABLISHED; Inclosure Type: HERMETICALLY SEALED; Impedance Rating in Ohms: 600.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Mounting Method: UNTHREADED HOLE(S) 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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