Model: 2908MA-2-B4

Code Indicating Wheel Switch

Properties:

Overall Length
0.375 inches
Overall Height
1.562 inches
Overall Width
1.500 inches
Distance Between Mounting Facility Centers
1.312 inches single mounting facility
Individual Section Quantity
1
Mounting Method
Threaded hole single mounting facility
Actuator Type
Push button single actuator
Mounting Facility Pattern
Two position in-line single mounting facility
Switch Actuator Indexing Position Quantity
8 single actuator
Terminal Type
Printed circuit
Readout Indicator Marking
0, 1, 2, 3, 4, 5, 6, 7 single section
Contact Arrangement Truth Table
Bcd, 1 pole - 8 positions single section
Color
Black single body
Color
Black single indicator marking
Color
White single indicator background
Precious Material And Location
Terminal surfaces gold
Precious Material
Gold
Style Designator
Rectangular indicating
NSN
5930-01-106-6664
Part Number
2908MA-2-B4
Description
Switch,code Indicating Wheel
CAGE
91812

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 2908MA-2-B4 NSN 5930-01-106-6664

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:
G
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
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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