Model: 51257-1212SM-3

Rotary Switch

Properties:

Thread Class
2a single mounting facility
Thread Length
0.375 inches single mounting facility
Overall Length
2.736 inches
Shaft Diameter
0.250 inches single actuator
Shaft Length
0.625 inches single actuator
Overall Diameter
1.000 inches
Nonturn Device Radius
0.374 inches at 10: 00 o'clock
Individual Section Quantity
3
Nonturn Device Type
Pin at 10: 00 o'clock
Switch Contact Basic Design
Nonpile-up nonsymmetrical
Mounting Method
Threaded bushing w/panel seal single mounting facility
Thread Size
0.375 inches single mounting facility
Contact Voltage Rating In Volts
250.0 highest ac voltage rating at sea level
Contact Voltage Rating In Volts
250.0 highest dc voltage rating at sea level
Contact Voltage Rating In Volts
28.0 lowest ac voltage rating at sea level
Contact Voltage Rating In Volts
28.0 lowest dc voltage rating at sea level
Switch Actuator Indexing Position Quantity
6 single actuator
Shaft Type
Round w/through hole single actuator
Terminal Type
Tab, solder lug
Switch Actuator Positioning Increment
30.0 degrees single actuator
Switch Actuator Stop Device Type
Fixed stop single actuator
Contact Load Current Rating
50.0 milliamperes resistive load highest ac voltage rating at sea level
Contact Load Current Rating
50.0 milliamperes resistive load highest dc voltage rating at sea level
Contact Load Current Rating
500.0 milliamperes resistive load lowest dc voltage rating at sea level
Contact Load Current Rating
500.0 milliamperes resistive load lowest ac voltage rating at sea level
Style Designator
Circular wafer, bushing mount
Thread Series Designator
Unef single mounting facility
NSN
5930-01-220-6192
Part Number
51257-1212SM-3
Description
Switch,rotary
CAGE
82104

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 51257-1212SM-3 NSN 5930-01-220-6192

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:
0.1000lbs
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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