Model: 21490BK

Rotary Switch

Properties:

Thread Length
0.375 inches single mounting facility
Overall Length
4.125 inches
Overall Height
1.500 inches
Overall Width
1.812 inches
First Flat Length
0.375 inches single actuator
Shaft Diameter
0.250 inches single actuator
Shaft Length
1.562 inches single actuator
Individual Section Quantity
2
Longest Horizontal Distance Between Mounting Centers
1.250 inches single mounting facility
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
125.0 dc at sea level
Contact Voltage Rating In Volts
250.0 ac at sea level
Mounting Facility Pattern
Two position in-line single mounting facility
Switch Actuator Indexing Position Quantity
2 single actuator
Shaft Type
Round, nonparallel flatted single actuator
Terminal Type
Threaded stud
Switch Actuator Positioning Increment
50.0 degrees single actuator
Contact Load Current Rating
12.0 amperes resistive load ac at sea level
Contact Load Current Rating
6.0 amperes resistive load dc at sea level
Style Designator
In-line, cam actuated
Thread Series Designator
Unef single mounting facility
NSN
5930-00-201-9354
Part Number
21490BK
Description
Switch,rotary
CAGE
04009

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 21490BK NSN 5930-00-201-9354

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
77.5
WCC:
658
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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