Model: 178973

Code Indicating Wheel Switch

Properties:

Hazardous Locations/environmental Protection
Shock resistant and vibration resistant
Overall Length
Between 0.490 inches and 0.510 inches
Overall Height
Between 2.476 inches and 2.496 inches
Overall Width
Between 2.179 inches and 2.199 inches
Unthreaded Mounting Hole Diameter
0.172 inches single mounting facility
Distance Between Mounting Facility Centers
1.928 inches single mounting facility and 1.948 inches single mounting facility
Individual Section Quantity
1
Operating Tempurature Range
-65.0/+85.0 degrees celsius
Mounting Method
Bracket single mounting facility and unthreaded hole single mounting facility
Actuator Type
Thumbwheel single actuator
Features Provided
Illuminated and rfi shielding
Contact Voltage Rating In Volts
125.0 ac at sea level
Contact Voltage Rating In Volts
28.0 dc at sea level
Mounting Facility Pattern
Two position in-line single mounting facility
Switch Actuator Indexing Position Quantity
10 single actuator
Terminal Type
Printed circuit
Contact Load Current Rating
125.0 milliamperes resistive load ac at sea level
Contact Load Current Rating
125.0 milliamperes resistive load dc at sea level
Readout Indicator Marking
0, 1, 2, 3, 4, 5, 6, 7, 8, 9 single section
Contact Arrangement Truth Table
Decimal, 1 pole - 10 positions single section
Color
Black single body
Color
Black single indicator background
Color
Natural single lamp
Color
White single indicator marking
Style Designator
Rectangular indicating
NSN
5930-00-488-9981
Part Number
178973
Description
Switch,code Indicating Wheel
CAGE

A switch which is externally actuated by a thumbwheel and/or pushbutton. A legend or message is visually displayed at each position of the indicating wheel which corresponds to electrically coded output. Electrically coded output is achieved by rotating a set of brush contacts permanently attached to the code indicating wheel, against a stationary commutator which is usually a printed wiring board having electrical pads or contacts which are interconnected by the rotating brush contacts. May have additional electrical components (such as resistors, capacitors, diodes) premounted on that portion of printed wiring board which extends beyond the back of switch housing.

Part 178973 NSN 5930-00-488-9981

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
62415
FIIG:
A052B0
Concept No.:
1
App. Key:
C
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:
P
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:
--
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:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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