Model: 5FMK4

Receiver Synchro

Special Features:

Round, threaded shaft with slot; slot depth 0.050 inch; slot width 0.030 inch

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round double flange b
Shoulder Diameter
3.3750 inches
Pilot Diameter
1.6300 inches
Overall Length
6.3600 inches
Flange Diameter
Between 3.6230 inches and 3.6250 inches
Flange Thickness
Between 0.2450 inches and 0.2500 inches
Shaft Diameter
0.2498 inches single shaft and 0.2500 inches single shaft
Shaft Length
0.7600 inches single shaft and 0.7800 inches single shaft
Fragility Factor
Moderately rugged
Distance Between Flanges
Between 1.8070 inches and 1.8170 inches
Maximum Tempurature Rise
50.0 degrees celsius
Body Size
5
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
60.0
Rotor Input Current Rating
600.0 milliamperes
Rotor Input Electrical Power Rating
7.0 watts microwatts
Torque Gradient Per Angular Deg
0.400 inch-ounces
Shaft End Play
0.0081 inches
Pilot Length
0.1750 inches
Shoulder Length
1.2450 mils and 1.2550 centimeters
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Terminal Location
Rear
Shaft Thread Length
0.1770 inches single shaft and 0.1970 inches single shaft
Shaft Type
Round, threaded single shaft
Shaft Thread Size
0.250 inches single shaft
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
Specification Data
81349-mil-s-2335 government specification
NSN
5990-00-504-8279
Part Number
5FMK4
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 5FMK4 NSN 5990-00-504-8279

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:
0.1000lbs
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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