Model: MIL-R-21530-1

Receiver Synchro

Properties:

Body Material
Steel, stainless
Body Style
Standard round c
Shoulder Diameter
Between 0.9995 inches and 1.0000 inches
Pilot Diameter
Between 0.6245 inches and 0.6250 inches
Overall Length
2.4190 inches
Flange Diameter
Between 1.0570 inches and 1.0650 inches
Flange Thickness
0.0620 inches
Undercut Diameter
0.9750 inches
Undercut Width
0.0500 inches
Shaft Diameter
0.1867 inches single shaft and 0.1872 inches single shaft
Shaft Length
0.5550 inches single shaft
Maximum Tempurature Rise
20.0 degrees celsius
Body Size
11
Rotor Input Voltage Rating In Volts
26.0
Frequency In Hertz
400.0
Rotor Input Current Rating
145.0 milliamperes
Rotor Input Electrical Power Rating
760.0 milliwatts
Zro Impedance Magnitude In Ohms
179.00
Zro Impedance Angle In Deg
78.40
Zso Impedance Magnitude In Ohms
42.00
Zso Impedance Angle In Deg
80.50
Zss Impedance Magnitude In Ohms
10.40
Zss Impedance Angle In Deg
26.80
Phase Shift Angle In Deg
7.000 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
20.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
30.00
Electrical Error Angular Range In Minutes
-3.0/+3.0
Spline Tooth Quantity
21 single shaft
Actuator Friction Torque At Minus 55 Deg Celsius
25.0 centimeter-grams
Actuator Friction Torque At Plus 25 Deg Celsius
15.0 centimeter-grams
Pilot Length
0.0620 inches
Shoulder Length
0.0620 inches
Mounting Surface To Terminal End Distance
1.8570 inches
Spline Tooth Diametral Pitch
120 single shaft
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
3a single shaft
Terminal Location
Rear
Shaft Thread Length
0.2000 inches single shaft
Shaft Type
Spline w/threads single shaft
Transformation Ratio
9.454 rotor to stator
Shaft Thread Size
0.190 inches single shaft
Terminal Type And Quantity
8 screw
NSN
5990-00-772-9277
Part Number
MIL-R-21530-1
Description
Synchro,receiver
CAGE
81349

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 MIL-R-21530-1 NSN 5990-00-772-9277

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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
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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