Model: 21CB3

Rotary Switch

Properties:

Thread Class
2b single mounting facility
Overall Length
Between 2.564 inches and 2.688 inches
Shaft Diameter
0.249 inches single actuator and 0.251 inches single actuator
Shaft Length
0.907 inches single actuator and 0.969 inches single actuator
Overall Diameter
1.750 inches
Distance Between Mounting Facility Centers
1.360 inches single mounting facility and 1.390 inches single mounting facility
Individual Section Quantity
1
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
2 single section front
Throw Quantity
3 single section front
Mounting Method
Bracket single mounting facility and threaded hole single mounting facility
Thready Qty Per Inch (tpi)
32 single mounting facility
Thread Size
0.138 inches single mounting facility
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
3 single actuator
Shaft Type
Round single actuator
Terminal Type
Turret
Contact Switching Action
Breaks before makes single section front
Switch Actuator Positioning Increment
30.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
2.0 amperes resistive load dc at sea level
Precious Material And Location
Contacts silver
Precious Material
Silver
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unc single mounting facility
NSN
5930-00-628-7509
Part Number
21CB3
Description
Switch,rotary
CAGE
28057

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 21CB3 NSN 5930-00-628-7509

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: 8536509020
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

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

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