PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B949369-1Transformer,audio Frequency

Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin · NSN 5950-00-645-3390 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-645-3390 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-645-3390. Primary manufacturer part number: B949369-1.
Features
  • Transformer,audio Frequency — FSC 5950
  • Mounting Facility Quantity: 4 SINGLE GROUP
  • Reliability Indicator: NOT ESTABLISHED
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
  • Body Length: 1.641 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 15.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Inclosure Type: HERMETICALLY SEALED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-00-645-3390, 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 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin. Government technical data includes 20 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-645-3390
Primary Part NumberB949369-1
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin
StatusACTIVE
Mounting Facility Quantity4 SINGLE GROUP
Reliability IndicatorNOT ESTABLISHED
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Body Length1.641 INCHES NOMINAL IN
Impedance Rating in Ohms15.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Inclosure TypeHERMETICALLY SEALED
Center to Center Distance Between Mounting Facilities Parallel to Length1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Body Width1.641 INCHES NOMINAL IN
Mounting MethodTHREADED STUD(S) SINGLE GROUP
Primary to Secondary Turn Ratio1 TO 27 SINGLE COMPONENT
Terminal Type and Quantity5 TAB, SOLDER LUG
Body Height2.453 INCHES NOMINAL IN
Frequency Rating300.0 HERTZ MINIMUM AND 8.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Transformer FunctionLINE
Thread Quantity Per Inch32 SINGLE GROUP
Nominal Thread Size0.138 INCHES SINGLE GROUP IN
Maximum Transformer Power Rating10.0 WATTS SINGLE COMPONENT
Center to Center Distance Between Mounting Facilities Parallel to Width1.062 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Impedance Rating in Ohms11000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5331-00-599-2537MS29513-223 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
3020-00-834-778615981 INTERCHANGEABLE
Gear Cluster
Elbitamerica, Inc.
5940-00-916-2774 INTERCHANGEABLE
Terminal,stud
5330-01-382-90041598-1 INTERCHANGEABLE
Gasket
Tate Andale, Llc
Cross-Reference Index
Part NumberManufacturer
B949369-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
15981 Emerson Electric Co White-Rodgers Div (USA)
B949369-1 Rca Corp Distributor and Special Products Div
Related Parts
5331-00-599-2537INTERCHANGEABLE
O-RING
MS29513-223
3020-00-834-7786INTERCHANGEABLE
GEAR CLUSTER
15981
5940-00-916-2774INTERCHANGEABLE
TERMINAL,STUD
5330-01-382-9004INTERCHANGEABLE
GASKET
1598-1

Frequently Asked Questions

What is NSN 5950-00-645-3390?

NSN 5950-00-645-3390 is a Transformer,audio Frequency, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-645-3390?

NSN 5950-00-645-3390 has 3 cross-referenced part numbers: B949369-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 15981 (Emerson Electric Co White-Rodgers Div), B949369-1 (Rca Corp Distributor and Special Products Div).

What NSN replaces 5950-00-645-3390?

There are 4 known substitutes for 5950-00-645-3390: 5331-00-599-2537, 3020-00-834-7786, 5940-00-916-2774 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B949369-1?

Key specifications for B949369-1: Mounting Facility Quantity: 4 SINGLE GROUP; Reliability Indicator: NOT ESTABLISHED; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Winding Function and Quantity: 1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT. 20 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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