Model: 2A251

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.187 inches single mounting facility
Overall Length
1.092 inches
First Flat Length
0.250 inches single actuator
Flat Height
0.156 inches single actuator
Shaft Diameter
0.250 inches single actuator
Shaft Length
0.530 inches single actuator
Overall Diameter
1.125 inches
Nonturn Device Radius
0.531 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
1 single section front
Mounting Method
Threaded bushing single mounting facility
Features Provided
Metallic inclosure
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
125.0 lowest dc voltage rating at sea level
Contact Voltage Rating In Volts
250.0 highest dc voltage rating at sea level
Switch Actuator Momentary Position
Counterclockwise single actuator
Shaft Flat/slot Angular Location
135.0 degrees from nonturn device single actuator
Switch Actuator Indexing Position Quantity
2 single actuator
Shaft Type
Round, flatted single actuator
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes single section front
Switch Actuator Positioning Increment
30.0 degrees single actuator
Contact Load Current Rating
2.0 amperes resistive load lowest dc voltage rating at sea level
Contact Load Current Rating
1.0 amperes resistive load highest dc voltage rating at sea level
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-00-235-9753
Part Number
2A251
Description
Switch,rotary
CAGE
64648

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 2A251 NSN 5930-00-235-9753

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

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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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