7R913-31B

View detailed technical data, stock status, and sourcing information for: 7R913-31B
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-917-4220

Item Name Code

02073

Assigment Date

07/27/1966 (60 years ago)

1.0000 inches nominal shoulder diameter, 1.0620 inches nominal flange diameter, standard round b body style, 0.6250 inches nominal pilot diameter, 2.4270 inches maximum overall length

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 b
Shoulder Diameter: 1.0000 inches nominal
Pilot Diameter: 0.6250 inches nominal
Overall Length: 2.4270 inches maximum
Flange Diameter: 1.0620 inches nominal
Flange Thickness: 0.0620 inches nominal
Undercut Width: 0.0500 inches nominal
Body Size: 11
Rotor Input Voltage Rating In Volts: 26.0 nominal
Frequency In Hertz: 400.0 nominal
Rotor Input Current Rating: 280.0 milliamperes nominal
Rotor Input Electrical Power Rating: 1.2 watts nominal
Zro Resistance In Ohms: 108.00 nominal
Zso Resistance In Ohms: 19.60 nominal
Zrs Resistance In Ohms: 22.10 nominal
Phase Shift Angle In Deg: 4.500 output to input nominal
Electrical Error Angular Range In Minutes: -7.0 to 7.0
Spline Tooth Quantity: 21 single shaft
Actuator Friction Torque At Minus 55 Deg Celsius: 0.07 inch-ounces nominal
Actuator Friction Torque At Plus 25 Deg Celsius: 0.05 inch-ounces nominal
Alignment Hole Quantity: 4
Pilot Length: 0.0620 inches nominal
Shoulder Length: unable to decode
Mounting Surface To Terminal End Distance: 1.7320 inches maximum
Spline Tooth Diametral Pitch: 120 single shaft
Shaft Thread Series Designator: unc single shaft
Shaft Thread Direction: right-hand single shaft
Shaft Thread Class: 2a single shaft
Body Material: steel corrosion resisting
Terminal Location: rear
Plus J Zro Reactance In Ohms: 82.30 nominal
Plus J Zso Reactance In Ohms: 76.60 nominal
Plus J Zrs Reactance In Ohms: 23.60 nominal
Shaft Type: spline w/threads single shaft
Alignment Hole Depth: 0.1250 inches minimum
Transformation Ratio: 0.454 rotor to stator nominal
Alignment Hole Bolt Circle Diameter: 0.8120 inches nominal
Shaft Nominal Thread Size: 0.187 inches single shaft
Terminal Type And Quantity: 5 screw

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
7R913-31B	Transmitter Synchro

FAQs

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

What is the FSCG of the NSN 5990-00-917-4220?

The FSCG of the NSN 5990-00-917-4220 is 5990

Does the NSN 5990-00-917-4220 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-917-4220 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 5990-00-917-4220 contain precious materials?

Precious metal content is unknown

Does NSN 5990-00-917-4220 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 5990-00-917-4220 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Jul 27, 1966