Control Transformer Synchro

NSN: 5990-00-644-0123 | Model: 8212775

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the rotor is dependent upon both the position of the rotor and the electrical input to the stator from a transmitter synchro or a differential synchro. Does not include variable resistors, goniometers, or variable transformers.

NSN Properties and Flags

NATO Stock Number

5990-00-644-0123

DEMIL

Yes - ITAR Controlled (Code D)

Body Material

Steel, corrosion resisting

Body Style

Standard round d

Shoulder Diameter

Between 1.9890 inches and 1.9900 inches

Pilot Diameter

Between 0.5900 inches and 0.6000 inches

Second Shoulder Diameter

Between 1.9985 inches and 1.9995 inches

Second Shoulder Length

0.1700 inches

Overall Length

Between 4.2430 inches and 4.2940 inches

Flange Diameter

Between 2.2490 inches and 2.2500 inches

Flange Thickness

0.2500 inches

Body Diameter

1.9900 inches

Shaft Diameter

0.2403 inches single shaft and 0.2405 inches single shaft

Shaft Length

0.6930 inches single shaft and 0.7190 inches single shaft

Maximum Tempurature Rise

45.0 degrees celsius

Body Size

Stator Input Voltage Rating In Volts

90.0

Stator Input Current Rating

7.7 milliamperes

Stator Input Electrical Power Rating

80.0 milliwatts

Frequency In Hertz

400.0

Zso Resistance In Ohms

1495.00

Zrs Resistance In Ohms

675.00

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

-6.0/+6.0

Spline Tooth Quantity

22 single shaft

Actuator Friction Torque At Minus 55 Deg Celsius

0.50 inch-ounces

Actuator Friction Torque At Plus 25 Deg Celsius

0.20 inch-ounces

Shaft Radial Play Test Point

0.250 inches

Shaft Maximum Radial Play

0.0010 inches

Shaft End Play

0.0030 inches

Pilot Length

0.0460 inches

Shoulder Length

0.2500 inches

Aft Of First Flange Diameter

Between 1.9985 inches and 1.9995 inches

Mounting Surface To Terminal End Distance

Between 3.4350 inches and 3.4450 inches

Spline Tooth Diametral Pitch

96 single shaft

Shaft Maximum Runout

0.0015 inches

Shaft Thread Series Designator

Unf single shaft

Shaft Thread Direction

Right-hand single shaft

Shaft Thread Class

Terminal Location

Rear

Shaft Thread Length

0.2660 inches single shaft

Plus J Zso Reactance In Ohms

11870.00

Plus J Zrs Reactance In Ohms

741.00

Shaft Type

Spline w/threads single shaft

Transformation Ratio

0.735 rotor to stator

Shaft Thread Size

0.250 inches single shaft

Test Data Document

81349-mil-s-20708 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Terminal Type And Quantity

7 screw

Specification Data

81349-mil-s-20708/94 government specification

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 5990-00-644-0123 Datasheet

Supply Class (FSC):

Synchros And Resolvers

Cross Reference:

8212775
MIL-S-20708/94
23CT4A
MS51082-4

Cage Codes:

Military Specifications (CAGE 81349)
Military Standards (CAGE 96906)

Schedule B & Trade:

Schedule B: 9014900000 (NAICS 334511)

Parts & accessories for direction finding compasses and other navigational instruments and appliances
SITC: 87412

Parts and accessories of navigational instruments and appliances
End Use: 22220

Marine engines, parts

Identification:

HMIC

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

PMIC

U - Precious metal content is unknown

ADPE

- Represents items with no adp components

CRITL

- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:

NMFC:

062120 - Generators/motors/parts noi
WCC:

593 - Motors and parts, (machinery and parts),(less than 35 feet)
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
ACC:

H - Instruments/equipment/supplies for radio, communications, electrical, laboratory, etc. (includes signal corps)
LTL:

W - Rating variable
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
Z
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
7
MGMT_CTL
Q2200x-
Repariability
This is a nonreparable item. if condemned or economically unserviceable, then dispose at the level authorized replace the item.

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $827.66 to $1,379.43..
Does NSN 5990-00-644-0123 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Army, Department Of The Air Force, U.s. Marine Corps, Department Of The Navy, Spain, Thailand, France, Republic Of Korea, Italy, Greece, and Turkey
What is the NIIN of NSN 5990-00-644-0123?
006440123 or 00-644-0123
Does NSN 5990-00-644-0123 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5990-00-644-0123?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963