Model: 688914

Transmitter Synchro

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round, rear mounting flange
Shoulder Diameter
Between 1.0620 inches and 1.0630 inches
Pilot Diameter
Between 0.6800 inches and 0.7000 inches
Second Shoulder Diameter
Between 1.2400 inches and 1.2600 inches
Second Shoulder Length
Between 0.1400 inches and 0.1650 inches
Overall Length
4.2000 inches
Flange Diameter
2.2500 inches
Flange Thickness
Between 0.2450 inches and 0.2550 inches
Body Diameter
Between 1.9400 inches and 1.9600 inches
Shaft Diameter
0.1820 inches single shaft
Shaft Length
0.3850 inches single shaft
Body Size
1
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
60.0
Rotor Input Current Rating
300.0 milliamperes
Rotor Input Electrical Power Rating
4.8 watts
Torque Gradient Per Angular Deg
0.060 inch-ounces
Alignment Hole Quantity
3
Pilot Length
Between 0.1480 inches and 0.1520 inches
Shoulder Length
Between 0.1200 inches and 0.1300 inches
Second Shoulder Face To Rear Flange Distance
Between 1.7500 inches and 1.8050 inches
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Mounting Facility Screw Thread Series Designator
Unc
Terminal Location
Rear
Shaft Thread Length
0.1500 inches single shaft
Shaft Type
Round, threaded single shaft
Alignment Hole Depth
0.1560 inches
Mounting Facility Screw Thread Diameter
0.112 inches
Alignment Hole Bolt Circle Diameter
Between 0.8400 inches and 0.8480 inches
Shaft Thread Size
0.112 inches single shaft
Mounting Thread Tolerance Class
2b internal
Test Data Document
81349-mil-s-2335 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
NSN
5990-00-636-4149
Part Number
688914
Description
Synchro,transmitter
CAGE
10001

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 688914 NSN 5990-00-636-4149

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.5000lbs
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:
Instruments/Radio

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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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