137685-01

View detailed technical data, stock status, and sourcing information for: 137685-01
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-073-1810

Item Name Code

02071

Assigment Date

01/01/1963 (63 years ago)

A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. Does not include variable resistors, goniometers, variable transformers, or items with dials.

0.4995 inches minimum and 0.5000 inches maximum pilot diameter, 0.0620 inches nominal flange thickness, 1.7560 inches maximum overall length, standard round a body style, 0.7470 inches minimum and 0.7500 inches maximum flange diameter

Product Characteristics

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

Body Style: standard round a
Pilot Diameter: 0.4995 inches minimum and 0.5000 inches maximum
Overall Length: 1.7560 inches maximum
Flange Diameter: 0.7470 inches minimum and 0.7500 inches maximum
Flange Thickness: 0.0620 inches nominal
Undercut Diameter: 0.6890 inches minimum and 0.6910 inches maximum
Undercut Width: 0.0570 inches minimum
Shaft Diameter: 0.0895 inches minimum and 0.0900 inches maximum single shaft
Shaft Length: 0.4850 inches minimum and 0.5150 inches maximum single shaft
Maximum Temp Rise: 5.0 celsius
Body Size: 8
Stator Input Voltage Rating In Volts: 11.8 nominal
Stator Input Current Rating: 98.0 milliamperes minimum and 100.0 milliamperes maximum
Stator Input Electrical Power Rating: 252.0 milliwatts nominal
Frequency In Hertz: 400.0 nominal
Zro Resistance In Ohms: 38.00 nominal
Zso Resistance In Ohms: 28.00 nominal
Zrs Resistance In Ohms: 47.00 nominal
Rotor Dc Resistance In Ohms: 36.00 nominal
Stator Dc Resistance In Ohms: 24.00 nominal
Phase Shift Angle In Deg: 9.000 input to output nominal
Maximum Fundamental Null Voltage In Millivolts Per Volt: 30.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt: 60.00
Electrical Error Angular Range In Minutes: -10.0 to 10.0
Actuator Friction Torque At Minus 55 Deg Celsius: 15.00 centimeter-grams nominal
Actuator Friction Torque At Plus 25 Deg Celsius: 3.00 centimeter-grams nominal
Pilot Length: 0.0400 inches nominal
Mounting Surface To Terminal End Distance: 1.2410 inches maximum
Body Material: steel corrosion resisting
Terminal Location: rear
Plus J Zro Reactance In Ohms: 122.00 nominal
Shaft Slot Depth: 0.0250 inches nominal single shaft
Plus J Zso Reactance In Ohms: 114.00 nominal
Shaft Slot Width: 0.0200 inches nominal single shaft
Plus J Zrs Reactance In Ohms: 13.00 nominal
Shaft Type: round, slotted single shaft
Transformation Ratio: 1.066 rotor to stator nominal
Terminal Type And Quantity: 6 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
137685-01	Differential Transmitter Synchro
CM41044005	Differential Transmitter Synchro

FAQs

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

What is the FSCG of the NSN 5990-00-073-1810?

The FSCG of the NSN 5990-00-073-1810 is 5990

Does the NSN 5990-00-073-1810 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-073-1810 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 5990-00-073-1810 contain precious materials?

Item does not contain precious metal.

Does NSN 5990-00-073-1810 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 5990-00-073-1810 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963