PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9999-6606-001Transformer,audio Frequency

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5950-01-156-7842 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-01-156-7842 — this item is cataloged by the U.S. Government under National Stock Number 5950-01-156-7842. Primary manufacturer part number: 9999-6606-001.
Features
  • Transformer,audio Frequency — FSC 5950
  • Maximum Operating Temp: 105.0 CELSIUS DEGC
  • Reliability Indicator: NOT ESTABLISHED
  • Winding Operating Current: 5.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Impedance Rating in Ohms: 700.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Impedance Rating in Ohms: 25.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
  • Primary to Secondary Turn Ratio: 5-19/64 TO 1 TO 1 SINGLE COMPONENT
  • Terminal Type and Quantity: 7 PIN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,audio Frequency, cataloged under National Stock Number 5950-01-156-7842, 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 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5950-01-156-7842
Primary Part Number9999-6606-001
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Maximum Operating Temp105.0 CELSIUS DEGC
Reliability IndicatorNOT ESTABLISHED
Winding Operating Current5.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms700.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Impedance Rating in Ohms25.0 NOMINAL SINGLE COMPONENT ALL SECONDARY
Primary to Secondary Turn Ratio5-19/64 TO 1 TO 1 SINGLE COMPONENT
Terminal Type and Quantity7 PIN
Frequency Rating300.0 HERTZ MINIMUM AND 75.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
Overall Diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Winding Function and Quantity1 PRIMARY AND 2 SECONDARY SINGLE COMPONENT
Body Length0.350 INCHES MAXIMUM IN
Mounting MethodTERMINAL SINGLE GROUP
Precious Material and LocationTERMINALS GOLD
Precious MaterialGOLD
Inclosure TypeHERMETICALLY SEALED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
8030-00-051-4011 INTERCHANGEABLE
Sealing Compound
5133-00-236-3405 INTERCHANGEABLE
Drill,twist
4320-00-299-0034SK-99357 INTERCHANGEABLE
Rod Assy,valve
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5820-00-311-8674L222507-1 INTERCHANGEABLE
Tripod,radio Transm
Raytheon Company Dba Raytheon Co
8125-00-462-732810621-0015 INTERCHANGEABLE
Bottle,screw Cap
Bel-Art Products Inc
6110-00-500-222010610 INTERCHANGEABLE
Disk,voltage Regulator
Miraj Corp
6125-00-659-29355179 INTERCHANGEABLE
Frequency Converter DC
Precision Electronics, Inc
5120-01-019-7864 INTERCHANGEABLE
Key,socket Head Screw
5935-01-058-12881250-0014 INTERCHANGEABLE
Connector,receptacle,electrical
Keysight Technologies Inc
5120-01-077-0306 INTERCHANGEABLE
Key,socket Head Screw
Cross-Reference Index
Part NumberManufacturer
L-8395 Pico Electronics Inc (USA)
9999-6606-001 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
10610 Pico Electronics Inc (USA)
Related Parts
8030-00-051-4011INTERCHANGEABLE
SEALING COMPOUND
5133-00-236-3405INTERCHANGEABLE
DRILL,TWIST
4320-00-299-0034INTERCHANGEABLE
ROD ASSY,VALVE
SK-99357
5820-00-311-8674INTERCHANGEABLE
TRIPOD,RADIO TRANSM
L222507-1
8125-00-462-7328INTERCHANGEABLE
BOTTLE,SCREW CAP
10621-0015
6110-00-500-2220INTERCHANGEABLE
DISK,VOLTAGE REGULATOR
10610
6125-00-659-2935INTERCHANGEABLE
FREQUENCY CONVERTER DC
5179
5120-01-019-7864INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5935-01-058-1288INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1250-0014
5120-01-077-0306INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
2920-01-187-1310INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
10610
6850-01-206-2359INTERCHANGEABLE
SEALER,CHEMICAL
987 HARDEN KIT

Frequently Asked Questions

What is NSN 5950-01-156-7842?

NSN 5950-01-156-7842 is a Transformer,audio Frequency, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-01-156-7842?

NSN 5950-01-156-7842 has 3 cross-referenced part numbers: L-8395 (Pico Electronics Inc), 9999-6606-001 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), 10610 (Pico Electronics Inc).

What NSN replaces 5950-01-156-7842?

There are 12 known substitutes for 5950-01-156-7842: 8030-00-051-4011, 5133-00-236-3405, 4320-00-299-0034 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9999-6606-001?

Key specifications for 9999-6606-001: Maximum Operating Temp: 105.0 CELSIUS DEGC; Reliability Indicator: NOT ESTABLISHED; Winding Operating Current: 5.0 MILLIAMPERES DC NOMINAL SINGLE COMPONENT SINGLE PRIMARY; Impedance Rating in Ohms: 700.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY. 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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