Model: MILS20708

Differential Transmitter Synchro

Special Features:

Slotted keyway full length of shaft

Properties:

Body Material
Steel, stainless
Body Style
Standard round d
Shoulder Diameter
Between 1.9850 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
Between 0.1680 inches and 0.1700 inches
Overall Length
4.2940 inches
Flange Diameter
Between 2.2490 inches and 2.2500 inches
Flange Thickness
Between 0.2480 inches and 0.2500 inches
Body Diameter
Between 1.9850 inches and 1.9900 inches
Shaft Diameter
0.2402 inches single shaft and 0.2405 inches single shaft
Shaft Length
0.6930 inches single shaft and 0.7190 inches single shaft
Fragility Factor
Moderately rugged
Maximum Tempurature Rise
45.0 degrees celsius
Body Size
23
Stator Input Voltage Rating In Volts
115.0
Stator Input Current Rating
75.0 milliamperes
Stator Input Electrical Power Rating
1.6 watts
Frequency In Hertz
60.0
Zro Resistance In Ohms
236.00
Zso Resistance In Ohms
217.00
Zrs Resistance In Ohms
485.00
Zso-9 Designator Resistance In Ohms
206.00
Maximum Fundamental Null Voltage In Millivolts Per Volt
75.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
100.00
Electrical Error Angular Range In Minutes
-8.0/+8.0
Actuator Friction Torque At Minus 55 Deg Celsius
0.50 inch-ounces
Actuator Friction Torque At Plus 25 Deg Celsius
0.20 inch-ounces
Alignment Hole Quantity
3
Pilot Length
Between 0.0360 inches and 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
3.4450 inches
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a
Terminal Location
Rear
Shaft Thread Length
0.3100 inches single shaft and 0.3300 inches single shaft
Plus J Zro Reactance In Ohms
1590.00
Plus J Zso Reactance In Ohms
796.00
Plus J Zrs Reactance In Ohms
167.00
Shaft Type
Round, threaded single shaft
Alignment Hole Depth
0.1250 inches
Transformation Ratio
0.783 rotor to stator
Alignment Hole Bolt Circle Diameter
1.6420 inches
Plus J Zso-9 Designator Reactance In Ohms
271.00
Shaft Thread Size
0.2500 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
5 screw
Specification Data
81349-mil-s-20708/94 government specification
NSN
5990-00-851-2793
Part Number
MILS20708
Description
Synchro,differential Transmitter
CAGE
81349

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.

Part MILS20708 NSN 5990-00-851-2793

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02071
FIIG:
A07800
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 9014900000
  • SITC: 87412
  • End Use: Marine engines, parts
  • NAICS: 334511
  • USDA: 1

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