Differential Receiver Synchro
31TDR6B
(NSN) National Stock Number
5990-01-121-1175
Federal Supply Classification
5990 Synchros and Resolvers
Item Name Code
02070
Schedule B Code
9014900000
Summary
Standard round d body style, 2.7000 inches maximum shoulder diameter, 0.5000 inches nominal pilot diameter, 2.7500 inches nominal second shoulder diameter, 0.3750 inches nominal second shoulder length, 5.3600 inches maximum overall length
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| E | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 1 | - | - | TX |
Identification
A synchro, the rotor of which is free to turn, which will assume a position in accordance with the sum or difference of the electrical angular information received from two transmitter synchros. Does not include variable resistors, goniometers, variable transformers, or items with dials.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 02070 | A07800 | 1 | 1 |
Specifications
Body Style
standard round d
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.Shoulder Diameter
2.7000 inches maximum
Details
The length of a straight line which passes through the center of a shoulder,and terminates at the circumference.Pilot Diameter
0.5000 inches nominal
Details
The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.Second Shoulder Diameter
2.7500 inches nominal
Details
None.Second Shoulder Length
0.3750 inches nominal
Details
None.Overall Length
5.3600 inches maximum
Details
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.Flange Diameter
3.1000 inches maximum
Details
The length of a straight line which passes through the center of a flange,and terminates at the circumference.Flange Thickness
0.2500 inches nominal
Details
A measurement of the smallest dimension of a flange,in distinction from length or width.Body Diameter
2.7000 inches maximum
Details
The length of a straight line which passes through the center of the body,and terminates at the circumference.Shaft Diameter
0.2405 inches maximum single shaft
Details
The length of a straight line which passes through the center of a shaft,and terminates at the circumference.Shaft Length
0.7000 inches nominal single shaft
Details
A measurement of the longest dimension of the shaft,in distinction from width.Schematic Diagram Designator
1 y-rotor, 1 y-stator
Details
A designator indicating a graphic representation,in standard and accepted symbols,of essential electrical-electronic elements and related connections on the item.Fragility Factor
moderately rugged
Details
The measure of sensitivity of the item to be packaged. a factor used by packaging engineers in devising proper cushioning in a package.Body Size
31
Details
An alpha and/or numeric designation indicating the size by which the body is identified.Stator Input Voltage Rating In Volts
90.0 nominal
Details
The value of the primary excitation voltage for which the stator is rated,expressed in volts.Stator Input Current Rating
748.0 milliamperes maximum
Details
The value of the primary excitation current for which the stator is rated,with rotor /secondary/ circuit open.Stator Input Electrical Power Rating
7.8 watts maximum
Details
The value of the primary /electrical/ excitation power for which the stator is rated.Frequency In Hertz
60.0 nominal
Details
The cycles per second /hertz/ of the alternating current.Phase Shift Angle In Deg
6.500 output to input maximum
Details
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.Electrical Error Angular Range In Minutes
-10.0 to 10.0
Details
The limits of permissible deviation in angular arc error from electrical zero,expressed in minutes.Spline Tooth Quantity
22 single shaft
Details
The number of individual teeth on the splined portion of the shaft.Receiver Error Angular Range In Minutes
-48.0 to 48.0
Details
The limits of permissible deviation between the position transmitted and the position assumed when the receiver is connected to a transmitter of equal size,expressed in minutes.Shaft Maximum Radial Play
0.0008 inches
Details
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.Shaft End Play
0.0010 inches minimum and 0.0050 inches maximum
Details
The axial shaft displacement due to reversal of a specified axial force,measured at the end of the shaft.Pilot Length
0.0300 inches nominal
Details
A measurement of the longest dimension of a pilot,in distinction from width.Shoulder Length
0.6450 inches nominal
Details
None.Aft Of First Flange Diameter
2.3220 inches nominal
Details
None.Mounting Surface To Terminal End Distance
4.6600 inches maximum
Details
None.Spline Tooth Diametral Pitch
96 single shaft
Details
The number of teeth the splined shaft has per inch of pitch diameter.Shaft Maximum Runout
0.0008 inches
Details
The eccentricity of the shaft diameter with respect to the rotational axis of the shaft,measured at a specified distance from the end of the shaft,when the body of the item is held fixed and the shaft is rotated.Shaft Thread Series Designator
unf single shaft
Details
A designation distinguishing one group of shaft thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Shaft Thread Direction
right-hand single shaft
Details
The direction of the shaft thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.Shaft Thread Class
2a single shaft
Details
A numeric-alpha designator indicating the ptich diameter tolerance,and an external or internal shaft thread.Body Material
steel corrosion resisting
Details
The chemical compound or mechanical mixture properties of which the body is fabricated.Terminal Location
rear
Details
Indicates the location of the terminal/s/ on the item.Shaft Thread Length
0.3200 inches maximum single shaft
Details
A measurement of the extent of the shaft threads measured on a line parallel to the longitudinal axis.Shaft Type
spline w/threads single shaft
Details
Indicates the type of shaft included on the item.Transformation Ratio
1.154 rotor to stator nominal
Details
The ratio of the output voltage to the input voltage at maximum coupling.Shaft Nominal Thread Size
0.250 inches single shaft
Details
The length of a straight line passing through the center of the shaft threaded portion,with terminated points at the circumference.Shaft Radial Play Determining Weight
16.0 ounces
Details
The force (load) applied perpendicular to the shaft axis to determine radial play.Shaft End Play Determining Weight
16.0 ounces
Details
The force (load) applied parallel to the shaft axis to determine end play.Special Features
shaft radial play test point 0.125 inches max
Details
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.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", "nominal", etc.).
Details
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.Terminal Type And Quantity
6 screw
Details
Indicates the type and number of terminals for providing electrical connection.Specification/Standard Data
81349-mil-s-20708/67 government specification
Details
The document designator of the specification or standard which established the item of supply.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| M20708/67-01B | 0U583 | E | - | 3 | 2 | - | ZZ |
| SAE-AS20708/67 | 0U583 | E | - | 3 | 1 | - | ZZ |
| MIL-S-20708 | 81349 | E | - | 5 | 9 | - | TX |
| MIL-S-20708/67 | 81349 | E | - | 5 | 9 | - | TX |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | A | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 34760 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 593 | Z | 9 |
What's Included?
- Certificate of Conformity
- QC Inspection prior to shipping
- On time delivery
- Friendly service to back every order
Manufacturer
MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
CAGE: 81349
FAQs
Frequently asked questions for NSN 5990-01-121-1175
What is the NIIN of the NSN 5990-01-121-1175?
The National Item Identification Number (NIIN) of the NSN 5990-01-121-1175 is 01-121-1175
When the NSN 5990-01-121-1175 was assigned to the Federal Catalog?
It was assigned 43 years ago, on Sat, Oct 31, 1981
Does the NSN 5990-01-121-1175 contain any precious metals?
Does not contain precious metal
Does the NSN 5990-01-121-1175 contain any hazardous material?
No data in HMIRS
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