AY231A4B

View detailed technical data, stock status, and sourcing information for: AY231A4B
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-581-9491

Item Name Code

02071

Assigment Date

01/01/1963 (63 years ago)

1.4360 inches minimum and 1.4370 inches maximum flange diameter, standard round b body style, 0.4995 inches minimum and 0.5000 inches maximum pilot diameter, 2.5270 inches nominal overall length, 1.3120 inches nominal shoulder 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 b
Shoulder Diameter: 1.3120 inches nominal
Pilot Diameter: 0.4995 inches minimum and 0.5000 inches maximum
Overall Length: 2.5270 inches nominal
Flange Diameter: 1.4360 inches minimum and 1.4370 inches maximum
Flange Thickness: 0.0930 inches nominal
Undercut Width: 0.0780 inches nominal
Shaft Diameter: 0.1195 inches minimum and 0.1200 inches maximum single shaft
Shaft Length: 0.5400 inches nominal single shaft
Body Size: 15
Stator Input Voltage Rating In Volts: 26.0 nominal
Stator Input Current Rating: 410.0 milliamperes nominal
Stator Input Electrical Power Rating: 2.3 watts nominal
Frequency In Hertz: 400.0 nominal
Rotor Dc Resistance In Ohms: 7.50 nominal
Stator Dc Resistance In Ohms: 6.10 nominal
Electrical Error Angular Range In Minutes: -6.0 to 6.0
Actuator Friction Torque At Minus 55 Deg Celsius: 21.00 centimeter-grams nominal
Actuator Friction Torque At Plus 25 Deg Celsius: 7.00 centimeter-grams nominal
Alignment Hole Quantity: 4
Pilot Length: 0.0400 inches nominal
Mounting Surface To Terminal End Distance: 1.7620 inches nominal
Body Material: aluminum
Terminal Location: rear
Shaft Slot Depth: 0.0210 inches minimum and 0.0310 inches maximum single shaft
Shaft Slot Width: 0.0210 inches minimum and 0.0310 inches maximum single shaft
Shaft Type: round, slotted single shaft
Alignment Hole Depth: 0.1250 inches maximum
Transformation Ratio: 1.000 rotor to stator nominal
Alignment Hole Bolt Circle Diameter: 0.8750 inches nominal
Terminal Type And Quantity: 6 screw

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5990-00-922-7308	No Name Available	10/06/1967

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
254561	Differential Transmitter Synchro
AY231A4B	Differential Transmitter Synchro

FAQs

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

What is the FSCG of the NSN 5990-00-581-9491?

The FSCG of the NSN 5990-00-581-9491 is 5990

Does the NSN 5990-00-581-9491 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-581-9491 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 5990-00-581-9491 contain precious materials?

Precious metal content is unknown

Does NSN 5990-00-581-9491 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 5990-00-581-9491 was assigned to the Federal Catalog?

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