Model: 7R913-31B

Transmitter Synchro

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round b
Shoulder Diameter
1.0000 inches
Pilot Diameter
0.6250 inches
Overall Length
2.4270 inches
Flange Diameter
1.0620 inches
Flange Thickness
0.0620 inches
Undercut Width
0.0500 inches
Body Size
11
Rotor Input Voltage Rating In Volts
26.0
Frequency In Hertz
400.0
Rotor Input Current Rating
280.0 milliamperes
Rotor Input Electrical Power Rating
1.2 watts
Zro Resistance In Ohms
108.00
Zso Resistance In Ohms
19.60
Zrs Resistance In Ohms
22.10
Phase Shift Angle In Deg
4.500 output to input
Electrical Error Angular Range In Minutes
-7.0/+7.0
Spline Tooth Quantity
21 single shaft
Actuator Friction Torque At Minus 55 Deg Celsius
0.07 inch-ounces
Actuator Friction Torque At Plus 25 Deg Celsius
0.05 inch-ounces
Alignment Hole Quantity
4
Pilot Length
0.0620 inches
Shoulder Length
0.0620 inches
Mounting Surface To Terminal End Distance
1.7320 inches
Spline Tooth Diametral Pitch
120 single shaft
Shaft Thread Series Designator
Unc single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Terminal Location
Rear
Plus J Zro Reactance In Ohms
82.30
Plus J Zso Reactance In Ohms
76.60
Plus J Zrs Reactance In Ohms
23.60
Shaft Type
Spline w/threads single shaft
Alignment Hole Depth
0.1250 inches
Transformation Ratio
0.454 rotor to stator
Alignment Hole Bolt Circle Diameter
0.8120 inches
Shaft Thread Size
0.187 inches single shaft
Terminal Type And Quantity
5 screw
NSN
5990-00-917-4220
Part Number
7R913-31B
Description
Synchro,transmitter
CAGE
88818

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the stator into a receiver synchro, a control transformer or differential synchro is dependent upon the position of its rotor. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Part 7R913-31B NSN 5990-00-917-4220

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02073
FIIG:
A07800
Concept No.:
1
App. Key:
H
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:
1.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
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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