Model: 31903NH

Rotary Switch

Properties:

Thread Class
2b single mounting facility
Overall Length
3.690 inches
Overall Height
2.130 inches
Overall Width
2.130 inches
Individual Section Quantity
3
Knob Manufacturer Code
82121
Knob Manufacturer Part Number
03029-4-1
Longest Horizontal Distance Between Mounting Centers
1.641 inches single mounting facility
Longest Vertical Distance Between Mounting Centers
1.641 inches single mounting facility
Switch Contact Basic Design
Nonpile-up nonsymmetrical
Mounting Method
Bracket single mounting facility and threaded hole single mounting facility
Features Provided
Actuator knob and legend plate
Thready Qty Per Inch (tpi)
32 single mounting facility
Thread Size
0.138 inches single mounting facility
Contact Voltage Rating In Volts
125.0 highest dc voltage rating at sea level
Contact Voltage Rating In Volts
125.0 lowest ac voltage rating at sea level
Contact Voltage Rating In Volts
30.0 lowest dc voltage rating at sea level
Contact Voltage Rating In Volts
600.0 highest ac voltage rating at sea level
Mounting Facility Pattern
Four position rectangular single mounting facility
Switch Actuator Indexing Position Quantity
7 single actuator
Terminal Type
Screw
Switch Actuator Positioning Increment
45.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
3.0 amperes resistive load highest ac voltage rating at sea level
Contact Load Current Rating
1.0 amperes resistive load highest dc voltage rating at sea level
Contact Load Current Rating
10.0 amperes resistive load lowest ac voltage rating at sea level
Contact Load Current Rating
5.0 amperes resistive load lowest dc voltage rating at sea level
Precious Material And Location
Contacts and rotor blade surfaces silver
Precious Material
Silver
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unc single mounting facility
NSN
5930-01-188-8844
Part Number
31903NH
Description
Switch,rotary
CAGE
82121

A switch actuated by a definite angular rotation of the switch shaft about its axis. For items having rated actuation travel and pressure characteristics, see switch, sensitive. Excludes relay, rotary; switch, stepping; and switch, telephone (as modified).

Part 31903NH NSN 5930-01-188-8844

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02134
FIIG:
A052B0
Concept No.:
1
App. Key:
A
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:
S
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:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536509025
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, rotary, rated at over 5 a, for a voltage not exceeding 1,000 volts

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