Model: 1SR2B2

Rotary Switch

Properties:

Thread Class
2b single mounting facility
Overall Length
3.125 inches
Overall Height
2.719 inches
Overall Width
2.719 inches
Shaft Diameter
0.250 inches single actuator
Shaft Length
1.125 inches single actuator
Individual Section Quantity
1
Switch Contact Basic Design
Nonpile-up nonsymmetrical
Mounting Facility Circle Radius
2.312 inches single mounting facility
Mounting Method
Threaded hole single mounting facility
Features Provided
Actuator knob
Thready Qty Per Inch (tpi)
24 single mounting facility
Thread Size
0.190 inches single mounting facility
Contact Voltage Rating In Volts
350.0 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
Shaft Type
Round, flatted, threaded hole single actuator
Terminal Type
Screw
Contact Switching Action
Makes before breaks single section rear
Switch Actuator Positioning Increment
90.0 degrees single actuator
Contact Load Current Rating
2.0 amperes resistive load dc at sea level and 2.0 amperes inductive load dc at sea level
Contact Load Current Rating
5.0 amperes resistive load ac at sea level and 5.0 amperes inductive 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-15291/2 government specification
NSN
5930-01-135-4217
Part Number
1SR2B2
Description
Switch,rotary
CAGE
82121

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 1SR2B2 NSN 5930-01-135-4217

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:
0.6000lbs
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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