Model: 77-1912

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.437 inches single mounting facility
Hazardous Locations/environmental Protection
Dustproof
Overall Length
3.481 inches
First Flat Length
0.250 inches 1st actuator
First Flat Length
0.250 inches 2nd actuator
Flat Height
0.094 inches 2nd actuator
Flat Height
0.219 inches 1st actuator
Shaft Diameter
0.125 inches 2nd actuator
Shaft Diameter
0.250 inches 1st actuator
Shaft Length
0.437 inches 1st actuator
Shaft Length
0.874 inches 2nd actuator
Overall Diameter
1.185 inches
Nonturn Device Radius
0.375 inches at 3: 00 o'clock
Individual Section Quantity
2
Nonturn Device Type
Tab at 3: 00 o'clock
Operating Tempurature Range
-65.0/+85.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 2nd section front
Pole Quantity
3 1st section front
Throw Quantity
3 1st section rear
Throw Quantity
7 2nd section rear
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
115.0 ac at sea level
Contact Voltage Rating In Volts
30.0 dc at sea level
Shaft Flat/slot Angular Location
225.0 degrees from nonturn device 1st actuator
Shaft Flat/slot Angular Location
330.0 degrees from nonturn device 2nd actuator
Rotor Through Connection Quantity
1 2nd section
Rotor Through Connection Quantity
3 1st section
Switch Actuator Indexing Position Quantity
3 1st actuator
Switch Actuator Indexing Position Quantity
7 2nd actuator
Shaft Type
Round, flatted 2nd actuator
Shaft Type
Round, hollowed, flatted 1st actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes each section rear
Switch Actuator Positioning Increment
30.0 degrees all actuators
Detent Rotational Torque Range
+20.000/+115.000 inch-ounces all actuators
Switch Actuator Stop Device Type
Fixed stop all actuators
Contact Load Current Rating
200.0 milliamperes resistive load dc at sea level
Contact Load Current Rating
50.0 milliamperes resistive load ac at sea level
Precious Material And Location
Contacts and rotors silver
Precious Material
Silver
Style Designator
Tap, circular, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-478-2833
Part Number
77-1912
Description
Switch,rotary
CAGE
91812

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 77-1912 NSN 5930-00-478-2833

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:
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:
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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