Model: 20SR4F2

Rotary Switch

Properties:

Thread Class
2b single mounting facility
Overall Length
7.875 inches
Overall Height
6.750 inches
Overall Width
6.750 inches
Individual Section Quantity
4
Switch Contact Basic Design
Nonpile-up nonsymmetrical
Mounting Facility Circle Radius
1.156 inches single mounting facility
Mounting Method
Bracket single mounting facility and threaded hole single mounting facility
Features Provided
Actuator knob
Thready Qty Per Inch (tpi)
25 single mounting facility
Thread Size
0.190 inches single mounting facility
Contact Voltage Rating In Volts
250.0 dc at sea level
Contact Voltage Rating In Volts
500.0 ac at sea level
Mounting Facility Pattern
Four position circular single mounting facility
Switch Actuator Indexing Position Quantity
4 single actuator
Terminal Type
Tab w/screw
Switch Actuator Positioning Increment
90.0 degrees single actuator
Contact Load Current Rating
200.0 amperes resistive load dc at sea level
Contact Load Current Rating
200.0 amperes resistive load ac at sea level
Style Designator
Tap, circuit selector
Test Data Document
81349-mil-s-15291 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
Unc single mounting facility
Specification Data
81349-mil-s-15291/12 government specification
NSN
5930-01-241-6012
Part Number
20SR4F2
Description
Switch,rotary
CAGE
81349

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 20SR4F2 NSN 5930-01-241-6012

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
24.8000lbs
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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