Model: MS20-4

Rotary Switch

Properties:

Thread Length
0.375 inches single mounting facility
First Flat Length
0.375 inches single actuator
Flat Height
0.219 inches single actuator
Shaft Diameter
0.250 inches single actuator
Shaft Length
0.844 inches single actuator
Individual Section Quantity
4
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 each section rear
Throw Quantity
19 each section rear
Mounting Method
Threaded bushing single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
300.0 ac at sea level
Contact Voltage Rating In Volts
300.0 dc at sea level
Switch Actuator Indexing Position Quantity
20 single actuator
Shaft Type
Round, flatted single actuator
Contact Switching Action
Breaks before makes each section rear
Switch Actuator Positioning Increment
18.0 degrees single actuator
Contact Load Current Rating
25.0 milliamperes resistive load ac at sea level
Contact Load Current Rating
25.0 milliamperes resistive load dc at sea level
Thread Series Designator
Unef single mounting facility
NSN
5930-00-636-2272
Part Number
MS20-4
Description
Switch,rotary
CAGE
55459

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 MS20-4 NSN 5930-00-636-2272

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:
U
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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