666740-1

View detailed technical data, stock status, and sourcing information for: 666740-1
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5950 Coils and Transformers

National Stock Number

5950-00-410-5141

Item Name Code

32496

Assigment Date

08/11/1969 (56 years ago)

A transformer consisting of one or more primary winding(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 overall 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.

1.960 inches nominal single mounting facility single center group center to center distance between mounting facilities parallel to width, 2.300 inches maximum overall height, 3.500 inches maximum overall length, 2.200 inches nominal single mounting facility single center group center to center distance between mounting facilities parallel to length, not established reliability indicator

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Reliability Indicator: not established
Overall Length: 3.500 inches maximum
Center To Center Distance Between Mounting Facilities Parallel To Length: 2.200 inches nominal single mounting facility single center group
Center To Center Distance Between Mounting Facilities Parallel To Width: 1.960 inches nominal single mounting facility single center group
Overall Height: 2.300 inches maximum
Overall Width: 3.000 inches maximum
Frequency Rating: 400.0 hertz nominal single component
Input-Output Phase Relationship: three phase to three phase and three phase to two phase single component
Transformer Winding Connection Type: wye-delta and wye-open delta
Maximum Transformer Power Rating: 330.1 volt-ampere single component
Winding Shielding Method: internal shield grounded to core single component
Maximum Operating Temp: 130.0 celsius
Inclosure Type: fully inclosed
Mounting Facility Quantity: 4 single group
Mounting Method: threaded hole single group
Cooling Method: self-cooled
Winding Function And Quantity: 1 primary and 5 secondary single component
Nominal Thread Size: 0.138 inches single group
Winding Operating Current: 2.0 amperes ac nominal single component 2nd secondary
Winding Operating Current: 2.0 amperes ac nominal single component 3rd secondary
Winding Operating Current: 3.0 amperes ac nominal single component 1st secondary
Winding Operating Current: 800.0 milliamperes ac nominal single component 4th secondary
Winding Power Rating: 134.9 volts-amperes single component 1st secondary
Winding Power Rating: 90.0 volts-amperes single component 2nd secondary
Winding Power Rating: 90.0 volts-amperes single component 3rd secondary
Winding Power Rating: 10.0 volts-amperes single component 4th secondary
Winding Operating Voltage: 115.00 ac volts nominal single component single primary
Winding Operating Voltage: 26.00 ac volts nominal single component 1st secondary
Winding Operating Voltage: 26.00 ac volts nominal single component 2nd secondary
Winding Operating Voltage: 26.00 ac volts nominal single component 3rd secondary
Winding Operating Voltage: 7.20 ac volts nominal single component 4th secondary
Special Features: one primary winding; five secondary windings
Thread Series Designator: unc single group
Terminal Type And Quantity: 18 tab, solder lug

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
666740-1	Power Transformer
8627276	Power Transformer

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5950-00-410-5141?

The FSCG of the NSN 5950-00-410-5141 is 5950

Does the NSN 5950-00-410-5141 have a Schedule B code assigned?

Yes, the Schedule B code is 8504314065

Does NSN 5950-00-410-5141 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5950-00-410-5141 contain precious materials?

Precious metal content is unknown

Does NSN 5950-00-410-5141 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 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.

When the NSN 5950-00-410-5141 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Mon, Aug 11, 1969