5990-00-702-1990

Differential Transmitter Synchro email this page
ITAR Registered

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Reference images of this national stock number
Reference of NSN 5990-00-702-1990 Reference of NSN 5990-00-702-1990

Model or part number: M20708/68B-001

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pdf NSN 5990-00-702-1990 Datasheet

MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.AAQL
Body Style:
Standard round, rotatable housing
MRC:
The length of a straight line which passes through the center of a shoulder,and terminates at the circumference.AAVH
Shoulder Diameter:
Between 2.6999 inches and 2.7000 inches
MRC:
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.ABHP
Overall Length:
4.6550 inches
MRC:
The length of a straight line which passes through the center of a flange,and terminates at the circumference.ABKK
Flange Diameter:
Between 3.0990 inches and 3.1000 inches
MRC:
A measurement of the smallest dimension of a flange,in distinction from length or width.ABKU
Flange Thickness:
Between 0.2450 inches and 2.2550 inches
MRC:
The length of a straight line which passes through the center of the body,and terminates at the circumference.ABPM
Body Diameter:
Between 2.7490 inches and 2.7500 inches
MRC:
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.ABWV
Shaft Diameter:
0.2405 inches single shaft
MRC:
A measurement of the longest dimension of the shaft,in distinction from width.ABXF
Shaft Length:
0.7200 inches single shaft and 0.7400 inches single shaft
MRC:
A designator indicating a graphic representation,in standard and accepted symbols,of essential electrical-electronic elements and related connections on the item.AEBZ
Schematic Diagram Designator:
1 y-rotor, 1 y-stator
MRC:
An alpha and/or numeric designation indicating the size by which the body is identified.AJSL
Body Size:
28
MRC:
The value of the primary excitation voltage for which the stator is rated,expressed in volts.AJSN
Stator Input Voltage Rating In Volts:
90.0
MRC:
The value of the primary excitation current for which the stator is rated,with rotor /secondary/ circuit open.AJSP
Stator Input Current Rating:
748.0 milliamperes
MRC:
The value of the primary /electrical/ excitation power for which the stator is rated.AJSQ
Stator Input Electrical Power Rating:
7.7 watts
MRC:
The cycles per second /hertz/ of the alternating current.AJSS
Frequency In Hertz:
60.0
MRC:
The resistance /r/ part of the rotor impedance with the stator shorted /zrs/,expressed in ohms.AJTA
Zrs Resistance In Ohms:
44.00
MRC:
The opposition that the rotor offers to the flow of the direct current,expressed in ohms.AJTS
Rotor Dc Resistance In Ohms:
24.00
MRC:
The opposition that the stator offers to the flow of direct current,expressed in ohms.AJTT
Stator Dc Resistance In Ohms:
19.00
MRC:
The difference between the phase time of two or more voltages or currents of the same frequency,at the same instant of time,expressed in degrees.AJVF
Phase Shift Angle In Deg:
6.500 input to output
MRC:
The number of individual teeth on the splined portion of the shaft.AJVM
Spline Tooth Quantity:
22 single shaft
MRC:
The amount of rotary force that must be applied to the actuator to cause rotation,at plus 25 degrees celsius.AJVT
Actuator Friction Torque At Plus 25 Deg Celsius:
0.50 inch-ounces
MRC:
The average torque per angular degree developed between two like items,when one rotor is turned /or displaced/ at 2 degree intervals,between a 10 degree counterclockwise position and 10 degree clockwise position.AJVV
Torque Gradient Per Angular Deg:
0.300 inch-ounces
MRC:
The maximum shaft displacement perpendicular to the shaft axis due to reversal of a specified force applied perpendicular to the shaft axis,and measured at a specified distance from the front surface of the unit.AJWG
Shaft Maximum Radial Play:
0.0008 inches
MRC:
The axial shaft displacement due to reversal of a specified axial force,measured at the end of the shaft.AJWH
Shaft End Play:
Between 0.0010 inches and 0.0050 inches
MRC:
None.AJWR
Shoulder Length:
Between 1.0150 inches and 1.0250 inches
MRC:
None.AJWX
Mounting Surface To Terminal End Distance:
3.3850 inches
MRC:
The number of teeth the splined shaft has per inch of pitch diameter.AJXA
Spline Tooth Diametral Pitch:
96 single shaft
MRC:
Indicates the location of the terminal/s/ on the item.CQTM
Terminal Location:
Rear
MRC:
A measurement of the extent of the shaft threads measured on a line parallel to the longitudinal axis.CQWQ
Shaft Thread Length:
0.6900 inches single shaft and 0.7100 inches single shaft
MRC:
Indicates the type of shaft included on the item.CRSJ
Shaft Type:
Spline single shaft
MRC:
The ratio of the output voltage to the input voltage at maximum coupling.CSJY
Transformation Ratio:
1.154 rotor to stator
MRC:
Indicates the type and number of terminals for providing electrical connection.TTQY
Terminal Type And Quantity:
6 screw
MRC:
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.ZZZT
Specification Or Standard:
31tdx68 type
MRC:
--
NIIN:
007021990
MRC:
--
NATO Stock Number:
5990-00-702-1990
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
Yes - DEMIL/MLI
Export Control Information  
FIIG:
--
FIIG:
A07800
MRC:
--
INC:
02071
MRC:
--
IMM:
TX
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All Products Certified

Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

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Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 5990-00-702-1990

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.

Packaging & Dimensions

MIL-STD codes: http://www.dla.mil/LandandMaritime/.../MILSTD2073Codes.aspx
Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
4.6000lbs
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q
LVL_C:
CUSH
MOP
CATEG.
PRES MAT
WRAP MAT
ICQ
THK
TOS
UCL
CUSH DUN:
XX
MOP:
ZZ
PKG:
69F0
PRES MAT:
XX
WRAP MAT:
XX
ICQ:
XXX
THK:
X
TOS:
UCL:

Packaging Codes Definitions:

LVL A Code (LVL_A) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with applicable specification for shipping container.

LVL B Code (LVL_B) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with the appropriate shipping container specification.

Procedure Indicator Code (OPI) O

Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) ZZ

See j.4.1.B.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
9014900000
NAICS:
334511
End Use Class:
22220
SITC:
87412
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 9014900000

Parts & Accessories For Direction Finding Compasses and Other Navigational Instruments and Appliances

End Use Code 22220

Marine Engines, Parts

Standard Intl. Trade Class (SITC) 87412

Parts and Accessories Of Navigational Instruments and Appliances

Freight

Universal / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
062120
NMF Description:
Generators/motors/parts Noi
UFC:
34760
LTL:
Rating variable
LCL:
70.0
WCC:
590
TCC:
Z
SHC:
9
ADC:
A
ACC:
H

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 590

Generators and parts, (machinery and parts),(less than 35 feet).

Air Commodity (ACC) H

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

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

DLA History / Forecast Quantities

Maritime Supply Chain
10/1802/1906/1910/1902/2006/20
1.001.001.001.001.001.00

Manufacturers

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