Model: 55689

Receiver Synchro

Properties:

Body Material
Steel, stainless
Body Style
Standard round a
Pilot Diameter
Between 0.4995 inches and 0.5000 inches
Overall Length
1.6160 inches
Flange Diameter
Between 0.7490 inches and 0.7500 inches
Flange Thickness
0.0620 inches
Undercut Diameter
Between 0.6880 inches and 0.6910 inches
Undercut Width
0.0620 inches
Shaft Diameter
0.0880 inches single shaft and 0.0900 inches single shaft
Shaft Length
0.3750 inches single shaft
Fragility Factor
Moderately rugged
Body Size
8
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
400.0
Rotor Input Current Rating
29.0 milliamperes
Rotor Input Electrical Power Rating
1.0 watts finished-chamfered
Zro Resistance In Ohms
950.00
Zso Resistance In Ohms
10.00
Zrs Resistance In Ohms
550.00
Rotor Dc Resistance In Ohms
700.00
Stator Dc Resistance In Ohms
10.40
Phase Shift Angle In Deg
11.000 input to output
Receiver Error Angular Range In Minutes
-15.0/+15.0
Actuator Friction Torque At Minus 55 Deg Celsius
5400.0 millimeter-milligrams
Actuator Friction Torque At Plus 25 Deg Celsius
2700.0 millimeter-milligrams
Torque Gradient Per Angular Deg
2400.0 millimeter-milligrams
Shaft Maximum Radial Play
0.0005 inches
Shaft End Play
Between 0.0020 inches and 0.0040 inches
Pilot Length
0.0430 inches
Mounting Surface To Terminal End Distance
1.2410 inches
Shaft Maximum Runout
0.0010 inches
Terminal Location
Rear
Plus J Zro Reactance In Ohms
3850.00
Shaft Slot Depth
0.0250 inches single shaft
Plus J Zso Reactance In Ohms
36.00
Shaft Slot Width
0.0200 inches single shaft
Plus J Zrs Reactance In Ohms
420.00
Shaft Type
Round, slotted single shaft
Transformation Ratio
9.745 rotor to stator
Shaft Radial Play Determining Weight
4.0 ounces
Shaft End Play Determining Weight
4.0 ounces
Terminal Type And Quantity
5 wire lead
NSN
5990-00-686-4499
Part Number
55689
Description
Synchro,receiver
CAGE
34830

A synchro consisting of a stator and rotor inductively coupled. The rotor is free to turn in accordance with the electrical input from a transmitter synchro or a differential synchro. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Part 55689 NSN 5990-00-686-4499

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02072
FIIG:
A07800
Concept No.:
1
App. Key:
F
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:
0.3000lbs
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

Freight Class: Parts & accessories for direction finding compasses and other navigational instruments and appliances

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