Model: SM-B-181972

Rotary Switch

Special Features:

1 dummy terminal sect. 2 position 6

Properties:

Thread Class
2a single mounting facility
Thread Length
0.312 inches single mounting facility
Width Between Flats
0.189 inches single actuator
Overall Length
2.015 inches
Overall Height
2.312 inches
Overall Width
1.750 inches
First Flat Length
0.250 inches single actuator
Shaft Diameter
0.250 inches single actuator
Shaft Length
0.328 inches single actuator
Nonturn Device Radius
0.531 inches at 10: 30 o'clock
Individual Section Quantity
2
Nonturn Device Type
Tab at 10: 30 o'clock
Operating Tempurature Range
-25.0/+85.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 1st section front
Pole Quantity
1 1st section rear
Pole Quantity
1 2nd section rear
Throw Quantity
10 2nd section rear
Throw Quantity
2 2nd section front
Throw Quantity
7 1st section front
Throw Quantity
7 1st section rear
Mounting Method
Threaded bushing w/panel seal single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
100.0 highest dc voltage rating at sea level
Contact Voltage Rating In Volts
115.0 highest ac voltage rating at sea level
Contact Voltage Rating In Volts
24.0 lowest ac voltage rating at sea level
Contact Voltage Rating In Volts
28.0 lowest dc voltage rating at sea level
Rotor Through Connection Quantity
1 2nd section
Switch Actuator Indexing Position Quantity
18 single actuator
Shaft Type
Round, parallel flatted, threaded hole single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Makes before breaks, breaks before makes each section front
Contact Switching Action
Makes before breaks, breaks before makes each section rear
Switch Actuator Positioning Increment
20.0 degrees single actuator
Contact Load Current Rating
220.0 milliamperes resistive load highest dc voltage rating at sea level
Contact Load Current Rating
230.0 milliamperes resistive load highest ac voltage rating at sea level
Contact Load Current Rating
1.5 amperes resistive load lowest dc voltage rating at sea level
Contact Load Current Rating
1.7 amperes resistive load lowest ac voltage rating at sea level
Precious Material And Location
Eyelet surfaces silver
Precious Material
Silver
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-793-8141
Part Number
SM-B-181972
Description
Switch,rotary
CAGE
80063

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 SM-B-181972 NSN 5930-00-793-8141

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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