Model: 4257-09

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
0.0895 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
26.0
Frequency In Hertz
400.0
Rotor Input Current Rating
100.0 milliamperes
Rotor Input Electrical Power Rating
540.0 milliwatts
Zro Resistance In Ohms
54.00
Zso Resistance In Ohms
12.00
Zrs Resistance In Ohms
80.00
Rotor Dc Resistance In Ohms
37.00
Stator Dc Resistance In Ohms
12.00
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
2200.0 millimeter-milligrams
Pilot Length
0.0430 inches
Mounting Surface To Terminal End Distance
1.2410 inches
Terminal Location
Rear
Plus J Zro Reactance In Ohms
260.00
Plus J Zso Reactance In Ohms
45.00
Plus J Zrs Reactance In Ohms
20.00
Shaft Type
Round single shaft
Transformation Ratio
0.454 rotor to stator
Terminal Type And Quantity
5 wire lead
NSN
5990-00-655-2440
Part Number
4257-09
Description
Synchro,receiver
CAGE
58880

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 4257-09 NSN 5990-00-655-2440

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

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