Model: 2678529-4N

Rotary Switch

Special Features:

Second shaft accommodates resistor variable

Properties:

Thread Class
2a single mounting facility
Thread Length
0.437 inches single mounting facility
Hazardous Locations/environmental Protection
Explosion proof
Overall Length
2.324 inches
First Flat Length
0.250 inches 2nd actuator
First Flat Length
0.375 inches 1st 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
0.441 inches 1st actuator
Shaft Length
0.813 inches 2nd actuator
Overall Diameter
1.170 inches
Nonturn Device Radius
0.375 inches at 3: 00 o'clock
Individual Section Quantity
1
Nonturn Device Type
Tab at 3: 00 o'clock
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
2 single section front
Throw Quantity
6 single section rear
Mounting Method
Threaded bushing single mounting facility
Features Provided
Variable resistor provisions
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
115.0 ac at sea level
Contact Voltage Rating In Volts
28.0 dc at sea level
Shaft Flat/slot Angular Location
180.0 degrees from contact position 1 2nd actuator
Shaft Flat/slot Angular Location
180.0 degrees from contact position 1 1st actuator
Rotor Through Connection Quantity
2 single section
Switch Actuator Indexing Position Quantity
6 1st 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 single section rear
Switch Actuator Positioning Increment
30.0 degrees 1st actuator
Detent Rotational Torque Range
+20.000/+115.000 inch-ounces all actuators
Detent Rotational Torque Range
+20.000 to 115.000 inch-ounces all actuators
Contact Load Current Rating
250.0 milliamperes inductive load ac at sea level
Contact Load Current Rating
1.0 amperes resistive load dc at sea level and 100.0 milliamperes inductive load dc at sea level
Contact Load Current Rating
1.0 amperes resistive load and 100.0 milliamperes inductive load dc at sea level
Precious Material And Location
Contacts and rotor surfaces silver
Precious Material
Silver
Style Designator
Tap, circular, bushing mount
Test Data Document
81349-mil-s-3786 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unef single mounting facility
NSN
5930-00-147-0691
Part Number
2678529-4N
Description
Switch,rotary
CAGE
10001

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 2678529-4N NSN 5930-00-147-0691

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:
4.0 X 3.0 X 3.0
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: 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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