PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30501Transformer,audio Frequency

Niwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific · NSN 5950-00-221-2940 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-221-2940 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-221-2940. Primary manufacturer part number: 30501.
Features
  • Transformer,audio Frequency — FSC 5950
  • Body Height: 3.203 INCHES NOMINAL IN
  • Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
  • Impedance Rating in Ohms: 2.8 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
  • Frequency Rating: 400.0 HERTZ MAXIMUM SINGLE COMPONENT
  • Body Width: 3.062 INCHES NOMINAL IN
  • Impedance Rating in Ohms: 5000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
  • Body Length: 3.375 INCHES NOMINAL 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 5950-00-221-2940, 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 Niwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific. Government technical data includes 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5950-00-221-2940
Primary Part Number30501
Item NameTransformer,audio Frequency
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerNiwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific
StatusACTIVE
Body Height3.203 INCHES NOMINAL IN
Mounting MethodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
Impedance Rating in Ohms2.8 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Frequency Rating400.0 HERTZ MAXIMUM SINGLE COMPONENT
Body Width3.062 INCHES NOMINAL IN
Impedance Rating in Ohms5000.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Body Length3.375 INCHES NOMINAL IN
Mounting Facility Quantity4 SINGLE GROUP
Center to Center Distance Between Mounting Facilities Parallel to Length3.094 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Inclosure TypeFULLY INCLOSED
Center to Center Distance Between Mounting Facilities Parallel to Width1.750 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Terminal Type and Quantity4 WIRE LEAD
Primary to Secondary Turn Ratio1 TO 44-1/5 SINGLE COMPONENT
Winding Operating Current45.0 MILLIAMPERES DC MAXIMUM SINGLE COMPONENT SINGLE PRIMARY
Reliability IndicatorNOT ESTABLISHED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-563-33121C1694-11 INTERCHANGEABLE
Valve,globe
General Electric Company
4820-00-590-916220521-1 INTERCHANGEABLE
Valve,globe
Grove Valve Operations
6150-00-723-3837957-2BC10 INTERCHANGEABLE
Lead,electrical
Janco Corporation Dba Janco Corp Div Mason Controls
4240-01-100-901652-N INTERCHANGEABLE
Strap,safety,industrial
Bashlin Industries Inc.
5963-01-171-037030501 INTERCHANGEABLE
Module,dual
Acterna Llc Dba Jdsu
5340-01-201-355630501 INTERCHANGEABLE
Cap
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6130-01-249-25393050-1 INTERCHANGEABLE
Power Supply
Power General Corp
5975-01-251-675330501 INTERCHANGEABLE
Cover,junction Box
Mulberry Metal Products Inc
5910-01-264-655530501 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
L & R Manufacturing Company
5996-01-278-24593050-1 INTERCHANGEABLE
Amplifier,radio Frequency
Oai Electronics, Llc Div Oai Electronics
Cross-Reference Index
Part NumberManufacturer
30501 PRIMARY Niwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific (USA)
Related Parts
4820-00-563-3312INTERCHANGEABLE
VALVE,GLOBE
1C1694-11
4820-00-590-9162INTERCHANGEABLE
VALVE,GLOBE
20521-1
6150-00-723-3837INTERCHANGEABLE
LEAD,ELECTRICAL
957-2BC10
4240-01-100-9016INTERCHANGEABLE
STRAP,SAFETY,INDUSTRIAL
52-N
5963-01-171-0370INTERCHANGEABLE
MODULE,DUAL
30501
5340-01-201-3556INTERCHANGEABLE
CAP
30501
6130-01-249-2539INTERCHANGEABLE
POWER SUPPLY
3050-1
5975-01-251-6753INTERCHANGEABLE
COVER,JUNCTION BOX
30501
5910-01-264-6555INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
30501
5996-01-278-2459INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
3050-1
4720-01-281-5199INTERCHANGEABLE
HOSE,NONMETALLIC
301501
5330-01-290-6057INTERCHANGEABLE
SEAL,PLAIN ENCASED
30501

Frequently Asked Questions

What is NSN 5950-00-221-2940?

NSN 5950-00-221-2940 is a Transformer,audio Frequency, manufactured by Niwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific, classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-221-2940?

NSN 5950-00-221-2940 has 1 cross-referenced part number: 30501 (Niwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific).

What NSN replaces 5950-00-221-2940?

There are 12 known substitutes for 5950-00-221-2940: 4820-00-563-3312, 4820-00-590-9162, 6150-00-723-3837 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30501?

Key specifications for 30501: Body Height: 3.203 INCHES NOMINAL IN; Mounting Method: FLANGE AND UNTHREADED HOLE(S) SINGLE GROUP; Impedance Rating in Ohms: 2.8 NOMINAL SINGLE COMPONENT SINGLE SECONDARY; Frequency Rating: 400.0 HERTZ MAXIMUM SINGLE COMPONENT. 16 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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