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Power Transformer

NSN: 5950-00-005-0312 | Model: 4-1946

A transformer consisting of one or more primary windin (s) and one or more secondary winding(s). It may be designed for direct connection to an alternating current source for purposes of changing the secondary volts and amperes or designed to eliminate metallic interconnection between circuits in an one to one voltage ratio, with or without additional output windings, or items designed to automatically maintain a constant output voltage within specified limits under varying input or load conditions. Also includes items having a provision for mechanically changing the turns ratio or inductive coupling in progressive increments by means of voltage taps, ratio adjuster, or devices oe similar design. For transformers having winding(s) common to both input and output circuits, see transformer (1), power, autotransformer. Excludes transformer (1) , pulse.


Fully inclosed, power transformer nsn 5950000050312.

NSN Properties and Flags
NATO Stock Number
Reliability Indicator
Not established
Center To Center Distance Between Mounting Facilities Parallel To Length
1.720 inches single mounting facility single center group and 1.780 inches single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width
2.157 inches single mounting facility single center group and 2.217 inches single mounting facility single center group
Mounting Hole Diameter
0.156 inches single group
Frequency Rating
50.0 hertz single component and 1.0 kilohertz single component
Input-output Phase Relationship
Single phase to single phase single component
Body Length
Between 2.157 inches and 2.217 inches
Body Width
Between 2.590 inches and 2.650 inches
Body Height
2.375 inches
Inclosure Type
Fully enclosed
Mounting Facility Quantity
4 single group
Mounting Method
Unthreaded hole single group
Winding Function And Quantity
2 primary single component and 8 secondary single component
Winding Operating Current
20.0 milliamperes dc single component 3rd secondary
Winding Operating Voltage
60.00 ac volts single component 4th secondary
Special Features
2primary windings; 8secondary windings
Terminal Type And Quantity
22 wire lead

Pricing and Availability

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NSN 5950-00-005-0312 Datasheet

Supply Class (FSC):
Coils And Transformers
Cross Reference:
  • 4-1946
Cage Codes:
  • Tranex Inc. (CAGE 17474)

P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.


U - Precious metal content is unknown


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    063420 - Transformers, noi, or transformer par

  • WCC:

    595 - Transformer, (machinery and parts),(less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $421.12 to $701.87..
Does NSN 5950-00-005-0312 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 5950-00-005-0312?
000050312 or 00-005-0312
Does NSN 5950-00-005-0312 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5950-00-005-0312?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jun 07, 1972