Model: 3666-91-21

Toggle Switch

Properties:

Thread Class
2a
Body Style
Bushing mount
Bushing Length
0.296 inches
Body Length
0.500 inches
Body Width
0.270 inches
Case Material
Plastic
Actuator Style
Round
Actuator Diameter
0.115 inches
Actuator Height
0.410 inches
Actuator Position-action Relationship
Up position maintained and down position maintained and center position maintained
Maximum Voltage Rating In Volts
250.0 ac and 28.0 dc
End Application
Control unit
Mounting Surface To Terminal End Distance
0.505 inches
Inclosure Type
Fully enclosed
Mounting Method
Threaded bushing
Thready Qty Per Inch (tpi)
40
Thread Size
0.250 inches
Nonpile-up Contact Arrangement
1 pole, double throw, three positions maintained single switch unit
Contact Load Current Rating At Maximum Rated Voltage
5.000 amperes resistive dc and 2.000 amperes resistive ac
Precious Material And Location
Contacts silver
Thread Series Designator
Uns
Terminal Type And Quantity
3 tab, solder lug
NSN
5930-01-149-1980
Part Number
3666-91-21
Description
Switch,toggle
CAGE
13859

A switch which is externally actuated by a lever and whose contacts open and close with an instantaneous (snap) action; includes items having one or more momentary positions. Includes switches (snap action) which use mercury to bridge contacts, and assemblages of complete switches (snap action) having common actuators. Excludes switch, lever; switch, rotary; switch, knife; switch, sensitive; and switch, box.

Part 3666-91-21 NSN 5930-01-149-1980

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00184
FIIG:
A053A0
Concept No.:
App. Key:
U
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:
0.1000lbs
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: 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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