1908903-1

View detailed technical data, stock status, and sourcing information for: 1908903-1
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Federal Supply Group

Electric Wire, and Power and Distribution Equipment

Federal Supply Classification

6105 Electrical Motors

National Stock Number

6105-00-220-2738

Item Name Code

28454

Assigment Date

01/29/1969 (57 years ago)

An item which is an electrical rotating machine combining both control motor and tachometer generator action. The control motor and tachometer generator may be contained in the same or separate housings. It is designed for servo application where instant response to input signal is essential. It is generally used in circuits where the output potential from the tachometer generator is fed back to prevent excessive oscillation and for assuring high stability in a servo loop. Excludes:dynamotor; and motor-generator.

2.058 inches overall length, 50000.0 feet maximum operating altitude rating, ac input current type, 0.753 inches overall width, 0.1248 inches nominal single end shaft diameter

Product Characteristics

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

Overall Length: 2.058 inches
Overall Width: 0.753 inches
Shaft Diameter: 0.1248 inches nominal single end
Current Type: ac input
Maximum Operating Altitude Rating: 50000.0 feet
Enclosure Feature: totally enclosed
Mounting Method: clamp ring
Mounting Facility Type And Quantity: 1 clamp collar
Excitor Type: separately excited
Calibration Speed In Rpm: 1000.0
Cooling Method: ambient air
Calibration Voltage Output Type In Volts: 0.1 ac
Torque Rating And Type: 0.14 inch-ounces stalled
Inclosure Specification: commercial
Control Field Voltage Type And Rating In Volts: 26.0 ac
Length Of Shaft From Housing: 0.335 inches single end
Temp Rating: -55.0 operating celsius and 125.0 operating celsius
Rotor Speed Rating In Rpm: 6300.0 single full load
Current Rating In Amps: 0.034 single input
Connection Type And Voltage Rating In Volts: 115.0 line to neutral single input
Shaft End Characteristic: a5 single style single end
Special Features: 115 rpm no load speed gear head output
Frequency In Hertz: 400.0 output
Terminal Type And Quantity: 8 wire lead

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
1908903-1	Motor-Tachometer Generator
8-85-21	Motor-Tachometer Generator
N-250062	Motor-Tachometer Generator
U-216611	Motor-Tachometer Generator

FAQs

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

What is the FSCG of the NSN 6105-00-220-2738?

The FSCG of the NSN 6105-00-220-2738 is 6105

Does the NSN 6105-00-220-2738 have a Schedule B code assigned?

Yes, the Schedule B code is 8412809000

Does NSN 6105-00-220-2738 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 6105-00-220-2738 contain precious materials?

Precious metal content is unknown

Does NSN 6105-00-220-2738 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 6105-00-220-2738 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Jan 29, 1969